feat: add paginated project discovery

2026-07-12 01:45:15 +08:00
parent 53d372e29b
commit 816af1abdb
14 changed files with 1505 additions and 237 deletions
@@ -32,6 +32,11 @@
  tools 与已安装 skill；skill 版本进入 content-addressed 持久存储，run 只读加载所选快照。
  `settingSources: []` 继续禁用项目/用户配置加载，不得把任意 workspace `.claude` 配置变成
  运行时能力(见 ADR-0018)。
+- 项目发现由 `ProjectDiscovery` 模块统一承载：PostgreSQL `pg_trgm` 搜索派生文档、项目编号
+  归一化、完整 Folder breadcrumb、MANAGE 授权过滤与分页都在该模块内；飞书卡片只是 adapter。
+  `Project`/`Folder` 仍是事实来源，搜索文档必须可重建且由数据库触发器同步，禁止调用方双写。
+  系统 `Inbox` 只作为未分类项目的内部落点，不作为业务 folder 暴露；已绑定群通过
+  `@bot /project` 随时打开项目管理卡片，重命名仍走 org-scoped MANAGE 授权与审计。

 ## 纪律

@@ -0,0 +1,191 @@
+-- Derived project discovery projection. Project/Folder remain authoritative;
+-- triggers prevent index drift through ordinary database mutations.
+CREATE EXTENSION IF NOT EXISTS pg_trgm;
+
+CREATE TYPE "FolderKind" AS ENUM ('REGULAR', 'SYSTEM_INBOX');
+ALTER TABLE "Folder" ADD COLUMN "kind" "FolderKind" NOT NULL DEFAULT 'REGULAR';
+
+DO $$
+BEGIN
+  IF EXISTS (
+    SELECT 1 FROM "Folder"
+    WHERE "parentId" IS NULL AND "name" = 'Inbox' AND "archivedAt" IS NULL
+    GROUP BY "organizationId" HAVING count(*) > 1
+  ) THEN
+    RAISE EXCEPTION 'cannot identify system Inbox: organization has multiple active root Inbox folders';
+  END IF;
+END $$;
+
+UPDATE "Folder" f SET "kind" = 'SYSTEM_INBOX'
+WHERE f."parentId" IS NULL AND f."name" = 'Inbox' AND f."archivedAt" IS NULL;
+
+INSERT INTO "Folder" ("id", "organizationId", "parentId", "name", "kind", "sortKey", "createdAt", "updatedAt")
+SELECT o."id" || ':system-inbox', o."id", NULL, 'Inbox', 'SYSTEM_INBOX', '000000', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP
+FROM "Organization" o
+WHERE NOT EXISTS (
+  SELECT 1 FROM "Folder" f
+  WHERE f."organizationId" = o."id" AND f."kind" = 'SYSTEM_INBOX' AND f."archivedAt" IS NULL
+);
+
+CREATE UNIQUE INDEX "Folder_one_active_system_inbox_per_org"
+  ON "Folder"("organizationId") WHERE "kind" = 'SYSTEM_INBOX' AND "archivedAt" IS NULL;
+
+CREATE OR REPLACE FUNCTION cph_protect_system_inbox() RETURNS trigger
+LANGUAGE plpgsql AS $$
+BEGIN
+  IF TG_OP = 'UPDATE' AND OLD."kind" = 'SYSTEM_INBOX' AND (
+    NEW."id" IS DISTINCT FROM OLD."id" OR
+    NEW."organizationId" IS DISTINCT FROM OLD."organizationId" OR
+    NEW."kind" IS DISTINCT FROM OLD."kind" OR
+    NEW."name" IS DISTINCT FROM OLD."name" OR
+    NEW."parentId" IS DISTINCT FROM OLD."parentId" OR
+    NEW."archivedAt" IS DISTINCT FROM OLD."archivedAt"
+  ) THEN
+    RAISE EXCEPTION 'system Inbox identity cannot be changed';
+  END IF;
+  IF TG_OP IN ('INSERT', 'UPDATE') AND NEW."kind" = 'SYSTEM_INBOX' AND (
+    NEW."name" <> 'Inbox' OR NEW."parentId" IS NOT NULL OR NEW."archivedAt" IS NOT NULL
+  ) THEN
+    RAISE EXCEPTION 'system Inbox must be an active root folder named Inbox';
+  END IF;
+  IF TG_OP = 'DELETE' AND OLD."kind" = 'SYSTEM_INBOX' AND EXISTS (
+    SELECT 1 FROM "Organization" WHERE "id" = OLD."organizationId"
+  ) THEN
+    RAISE EXCEPTION 'system Inbox cannot be deleted while its organization exists';
+  END IF;
+  RETURN CASE WHEN TG_OP = 'DELETE' THEN OLD ELSE NEW END;
+END;
+$$;
+
+CREATE TRIGGER cph_protect_system_inbox
+BEFORE INSERT OR UPDATE OR DELETE ON "Folder"
+FOR EACH ROW EXECUTE FUNCTION cph_protect_system_inbox();
+
+ALTER TABLE "Project" ADD COLUMN "code" TEXT;
+
+CREATE TABLE "ProjectSearchDocument" (
+    "projectId" TEXT NOT NULL,
+    "organizationId" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "code" TEXT,
+    "normalizedCode" TEXT NOT NULL,
+    "normalizedName" TEXT NOT NULL,
+    "breadcrumb" TEXT NOT NULL,
+    "normalizedBreadcrumb" TEXT NOT NULL,
+    "normalizedSearchText" TEXT NOT NULL,
+    "updatedAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT "ProjectSearchDocument_pkey" PRIMARY KEY ("projectId")
+);
+
+CREATE INDEX "ProjectSearchDocument_organizationId_idx" ON "ProjectSearchDocument"("organizationId");
+CREATE INDEX "ProjectSearchDocument_normalizedName_trgm_idx"
+  ON "ProjectSearchDocument" USING GIN ("normalizedName" gin_trgm_ops);
+CREATE INDEX "ProjectSearchDocument_normalizedCode_trgm_idx"
+  ON "ProjectSearchDocument" USING GIN ("normalizedCode" gin_trgm_ops);
+CREATE INDEX "ProjectSearchDocument_normalizedBreadcrumb_trgm_idx"
+  ON "ProjectSearchDocument" USING GIN ("normalizedBreadcrumb" gin_trgm_ops);
+CREATE INDEX "ProjectSearchDocument_normalizedSearchText_trgm_idx"
+  ON "ProjectSearchDocument" USING GIN ("normalizedSearchText" gin_trgm_ops);
+
+ALTER TABLE "ProjectSearchDocument" ADD CONSTRAINT "ProjectSearchDocument_projectId_fkey"
+  FOREIGN KEY ("projectId") REFERENCES "Project"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+ALTER TABLE "ProjectSearchDocument" ADD CONSTRAINT "ProjectSearchDocument_organizationId_fkey"
+  FOREIGN KEY ("organizationId") REFERENCES "Organization"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+CREATE OR REPLACE FUNCTION cph_project_search_normalize(value TEXT) RETURNS TEXT
+LANGUAGE sql IMMUTABLE STRICT PARALLEL SAFE AS $$
+  SELECT lower(regexp_replace(normalize(value, NFKC), '[[:space:]_.:/\\-]+', '', 'g'))
+$$;
+
+CREATE OR REPLACE FUNCTION cph_folder_breadcrumb(folder_id TEXT) RETURNS TEXT
+LANGUAGE sql STABLE PARALLEL SAFE AS $$
+  WITH RECURSIVE ancestors AS (
+    SELECT f."id", f."parentId", f."name", f."kind", 0 AS depth
+    FROM "Folder" f
+    WHERE f."id" = folder_id
+    UNION ALL
+    SELECT parent."id", parent."parentId", parent."name", parent."kind", child.depth + 1
+    FROM "Folder" parent
+    JOIN ancestors child ON parent."id" = child."parentId"
+  )
+  SELECT CASE
+    WHEN count(*) = 1 AND bool_and("kind" = 'SYSTEM_INBOX') THEN '未分类'
+    ELSE coalesce(string_agg("name", ' / ' ORDER BY depth DESC), '')
+  END
+  FROM ancestors
+$$;
+
+CREATE OR REPLACE FUNCTION cph_project_search_code(explicit_code TEXT, project_name TEXT) RETURNS TEXT
+LANGUAGE sql IMMUTABLE PARALLEL SAFE AS $$
+  SELECT CASE
+    WHEN explicit_code IS NOT NULL AND btrim(explicit_code) <> ''
+      THEN cph_project_search_normalize(explicit_code)
+    ELSE coalesce(substring(cph_project_search_normalize(project_name) FROM '^[a-z]+[0-9]+'), '')
+  END
+$$;
+
+CREATE OR REPLACE FUNCTION cph_refresh_project_search_document(target_project_id TEXT) RETURNS void
+LANGUAGE plpgsql AS $$
+BEGIN
+  INSERT INTO "ProjectSearchDocument" (
+    "projectId", "organizationId", "name", "code", "normalizedCode", "normalizedName",
+    "breadcrumb", "normalizedBreadcrumb", "normalizedSearchText", "updatedAt"
+  )
+  SELECT p."id", p."organizationId", p."name", p."code",
+    cph_project_search_code(p."code", p."name"),
+    cph_project_search_normalize(p."name"),
+    cph_folder_breadcrumb(p."folderId"),
+    cph_project_search_normalize(cph_folder_breadcrumb(p."folderId")),
+    cph_project_search_normalize(cph_folder_breadcrumb(p."folderId") || ' ' || p."name"),
+    CURRENT_TIMESTAMP
+  FROM "Project" p WHERE p."id" = target_project_id
+  ON CONFLICT ("projectId") DO UPDATE SET
+    "organizationId" = EXCLUDED."organizationId",
+    "name" = EXCLUDED."name",
+    "code" = EXCLUDED."code",
+    "normalizedCode" = EXCLUDED."normalizedCode",
+    "normalizedName" = EXCLUDED."normalizedName",
+    "breadcrumb" = EXCLUDED."breadcrumb",
+    "normalizedBreadcrumb" = EXCLUDED."normalizedBreadcrumb",
+    "normalizedSearchText" = EXCLUDED."normalizedSearchText",
+    "updatedAt" = CURRENT_TIMESTAMP;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION cph_project_search_project_trigger() RETURNS trigger
+LANGUAGE plpgsql AS $$
+BEGIN
+  PERFORM cph_refresh_project_search_document(NEW."id");
+  RETURN NEW;
+END;
+$$;
+
+CREATE TRIGGER cph_project_search_project_changed
+AFTER INSERT OR UPDATE OF "name", "code", "folderId", "organizationId", "archivedAt" ON "Project"
+FOR EACH ROW EXECUTE FUNCTION cph_project_search_project_trigger();
+
+CREATE OR REPLACE FUNCTION cph_project_search_folder_trigger() RETURNS trigger
+LANGUAGE plpgsql AS $$
+DECLARE project_id TEXT;
+BEGIN
+  FOR project_id IN
+    WITH RECURSIVE descendants AS (
+      SELECT NEW."id"
+      UNION ALL
+      SELECT child."id" FROM "Folder" child
+      JOIN descendants parent ON child."parentId" = parent."id"
+    )
+    SELECT p."id" FROM "Project" p
+    WHERE p."folderId" IN (SELECT "id" FROM descendants)
+  LOOP
+    PERFORM cph_refresh_project_search_document(project_id);
+  END LOOP;
+  RETURN NEW;
+END;
+$$;
+
+CREATE TRIGGER cph_project_search_folder_changed
+AFTER UPDATE OF "name", "kind", "parentId", "archivedAt" ON "Folder"
+FOR EACH ROW EXECUTE FUNCTION cph_project_search_folder_trigger();
+
+SELECT cph_refresh_project_search_document("id") FROM "Project";
@@ -46,6 +46,7 @@ model Organization {
  agentSkills                  OrganizationAgentSkill[]
  agentRoles                   OrganizationAgentRole[]
  auditEntries                 AuditEntry[]                    @relation("organizationAudit")
+  projectSearchDocuments      ProjectSearchDocument[]

  @@index([status])
 }
@@ -437,11 +438,17 @@ model ExternalPrincipalMembership {
 /// ADR-0021: transparent project explorer folder. Folders are org-scoped
 /// navigation/aggregation nodes, not permission resources; project grants stay
 /// attached to PROJECT resources.
+enum FolderKind {
+  REGULAR
+  SYSTEM_INBOX
+}
+
 model Folder {
  id             String    @id @default(cuid())
  organizationId String
  parentId       String?
  name           String
+  kind           FolderKind @default(REGULAR)
  sortKey        String    @default("")
  createdAt      DateTime  @default(now())
  updatedAt      DateTime  @updatedAt
@@ -460,6 +467,7 @@ model Project {
  id              String    @id @default(cuid())
  organizationId  String
  folderId        String?
+  code            String?
  name            String
  workspaceDir    String
  createdByUserId String?
@@ -477,12 +485,34 @@ model Project {
  roleTriggerGrants RoleTriggerGrant[]    @relation("projectRoleGrants")
  auditEntries      AuditEntry[]          @relation("projectAudit")
  fileChanges       AgentFileChange[]     @relation("projectFileChanges")
+  searchDocument    ProjectSearchDocument?

  @@index([organizationId, archivedAt])
  @@index([folderId, archivedAt])
  @@index([archivedAt])
 }

+/// Derived, rebuildable search projection for project discovery. PostgreSQL
+/// triggers keep it synchronized with Project and Folder mutations; Project
+/// remains the source of truth and authorization remains outside this table.
+model ProjectSearchDocument {
+  projectId             String   @id
+  organizationId        String
+  name                  String
+  code                  String?
+  normalizedCode        String
+  normalizedName        String
+  breadcrumb            String
+  normalizedBreadcrumb String
+  normalizedSearchText  String
+  updatedAt             DateTime @updatedAt
+
+  project      Project      @relation(fields: [projectId], references: [id], onDelete: Cascade)
+  organization Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)
+
+  @@index([organizationId])
+}
+
 /// ADR-0001 + ADR-0021: active bindings are one project ↔ one Feishu chat
 /// (1:1). Historical archived bindings are retained for audit; partial unique
 /// indexes in migrations enforce one active binding per project and per chat.
@@ -100,6 +100,7 @@ export interface CardActionEvent {
    readonly value?: unknown;
    readonly tag?: string;
    readonly option?: string;
+    readonly form_value?: Readonly<Record<string, unknown>>;
  };
  readonly context?: { readonly open_message_id?: string; readonly open_chat_id?: string };
  readonly token?: string;
@@ -1,97 +1,46 @@
-export interface OnboardingProjectOption {
-  readonly projectId: string;
-  readonly name: string;
-  readonly folderName?: string | undefined;
-}
+import type { ProjectDiscoveryPage, ProjectFolderPage } from "../projectDiscovery.js";

-export interface OnboardingFolderOption {
-  readonly folderId: string;
-  readonly name: string;
-}
+export type ProjectOnboardingView =
+  | { readonly mode: "search"; readonly result: ProjectDiscoveryPage }
+  | { readonly mode: "browse"; readonly result: ProjectFolderPage };

 export interface ProjectOnboardingActionValue {
-  readonly action: "create_project_from_chat" | "bind_project";
+  readonly action: "create_project_from_chat" | "bind_project" | "browse_folder" | "search_page" | "rename_project";
  readonly organization_id: string;
  readonly project_id?: string | undefined;
  readonly folder_id?: string | undefined;
+  readonly search_query?: string | undefined;
+  readonly page?: number | undefined;
 }

 export function buildUnboundChatOnboardingCard(params: {
  readonly organizationId: string;
  readonly organizationName: string;
-  readonly folders: readonly OnboardingFolderOption[];
-  readonly projects: readonly OnboardingProjectOption[];
  readonly canCreateProject: boolean;
-  readonly searchQuery?: string | undefined;
+  readonly view: ProjectOnboardingView;
 }): Record<string, unknown> {
-  const actions: unknown[] = [];
-  if (params.canCreateProject) {
-    const folders = params.folders.length === 0 ? [{ folderId: undefined, name: "默认位置" }] : params.folders.slice(0, 3);
-    for (const folder of folders) {
-      actions.push({
-        tag: "button",
-        text: { tag: "plain_text", content: `新建到 ${buttonLabel(folder.name, 14)}` },
-        type: "primary",
-        value: {
-          project_onboarding: {
-            action: "create_project_from_chat",
-            organization_id: params.organizationId,
-            ...(folder.folderId !== undefined ? { folder_id: folder.folderId } : {}),
-          },
-        },
-      });
-    }
-  }
-
-  for (const project of params.projects.slice(0, 5)) {
-    actions.push({
-      tag: "button",
-      text: { tag: "plain_text", content: buttonProjectLabel(project) },
-      type: "default",
-      value: {
-        project_onboarding: {
-          action: "bind_project",
-          organization_id: params.organizationId,
-          project_id: project.projectId,
-        },
-      },
-    });
-  }
-
-  const elements: unknown[] = [
-    {
+  const elements: unknown[] = [{
    tag: "markdown",
-      content: [
-        `这个飞书群还没有绑定项目。`,
-        ``,
-        `组织: **${escapeMarkdown(params.organizationName)}**`,
-        ...(params.searchQuery === undefined || params.searchQuery === ""
-          ? [`可以选择 folder 新建项目并绑定到本群，或绑定你已经有管理权限的未绑定项目。`]
-          : [
-              `项目搜索: **${escapeMarkdown(params.searchQuery)}**`,
-              params.projects.length === 0
-                ? `没有匹配的未绑定项目。请 @bot 后换一个项目关键词。`
-                : `请选择匹配项目绑定到本群；如未找到，请 @bot 后换一个更具体的关键词。`,
-            ]),
-      ].join("\n"),
-    },
-  ];
+    content: onboardingSummary(params.organizationName, params.view),
+  }];

-  if (actions.length > 0) {
-    elements.push({ tag: "action", actions });
-  } else {
-    elements.push({
-      tag: "markdown",
-      content: "你当前没有可绑定项目，也没有新建项目权限。请联系组织管理员。",
-    });
+  if (params.view.mode === "browse") {
+    appendFolderNavigation(elements, params.organizationId, params.view.result);
  }
+  appendProjectResults(
+    elements,
+    params.organizationId,
+    params.view.mode === "search" ? params.view.result.items : params.view.result.projects,
+  );
+  appendPagination(elements, params.organizationId, params.view);
+  appendCreation(elements, params.organizationId, params.canCreateProject, params.view);

+  if (elements.length === 1) {
+    elements.push({ tag: "markdown", content: "当前目录没有可浏览内容。" });
+  }
  return {
    config: { wide_screen_mode: true },
-    header: {
-      title: { tag: "plain_text", content: "绑定项目" },
-      template: "blue",
-    },
+    header: { title: { tag: "plain_text", content: "绑定项目" }, template: "blue" },
    elements,
  };
 }
@@ -103,54 +52,237 @@ export function buildProjectOnboardingResolvedCard(params: {
 }): Record<string, unknown> {
  return {
    config: { wide_screen_mode: true },
-    header: {
-      title: { tag: "plain_text", content: params.title },
-      template: params.template,
-    },
+    header: { title: { tag: "plain_text", content: params.title }, template: params.template },
    elements: [{ tag: "markdown", content: params.body }],
  };
 }

+export function buildProjectManagementCard(params: {
+  readonly organizationId: string;
+  readonly projectId: string;
+  readonly projectName: string;
+  readonly title?: string | undefined;
+}): Record<string, unknown> {
+  return {
+    config: { wide_screen_mode: true },
+    header: {
+      title: { tag: "plain_text", content: params.title ?? "项目管理" },
+      template: "green",
+    },
+    elements: [
+      { tag: "markdown", content: `当前项目: **${escapeMarkdown(params.projectName)}**` },
+      {
+        tag: "form",
+        name: "project_rename_form",
+        fallback: {
+          tag: "fallback_text",
+          text: { tag: "plain_text", content: "请升级飞书客户端后修改项目名称。" },
+        },
+        elements: [
+          {
+            tag: "input",
+            name: "project_name",
+            required: true,
+            max_length: 100,
+            default_value: params.projectName,
+            placeholder: { tag: "plain_text", content: "请输入项目名称" },
+          },
+          {
+            tag: "button",
+            name: "project_rename_submit",
+            text: { tag: "plain_text", content: "保存项目名称" },
+            type: "primary",
+            complex_interaction: true,
+            action_type: "form_submit",
+            value: {
+              project_onboarding: {
+                action: "rename_project",
+                organization_id: params.organizationId,
+                project_id: params.projectId,
+              },
+            },
+          },
+        ],
+      },
+    ],
+  };
+}
+
 export function projectOnboardingActionFromValue(value: unknown): ProjectOnboardingActionValue | null {
  const raw = unwrapValue(value);
-  if (typeof raw !== "object" || raw === null || Array.isArray(raw)) return null;
-  if (!("project_onboarding" in raw)) return null;
+  if (typeof raw !== "object" || raw === null || Array.isArray(raw) || !("project_onboarding" in raw)) return null;
  const action = raw.project_onboarding;
  if (typeof action !== "object" || action === null || Array.isArray(action)) return null;
-  const rawAction = (action as { action?: unknown }).action;
-  const organizationId = (action as { organization_id?: unknown }).organization_id;
-  const projectId = (action as { project_id?: unknown }).project_id;
-  const folderId = (action as { folder_id?: unknown }).folder_id;
-  if ((rawAction !== "create_project_from_chat" && rawAction !== "bind_project") || typeof organizationId !== "string" || organizationId === "") {
-    return null;
-  }
-  if (rawAction === "bind_project" && (typeof projectId !== "string" || projectId === "")) {
-    return null;
-  }
-  if (folderId !== undefined && (typeof folderId !== "string" || folderId === "")) {
-    return null;
-  }
+  const fields = action as Record<string, unknown>;
+  const rawAction = fields.action;
+  const organizationId = fields.organization_id;
+  const projectId = fields.project_id;
+  const folderId = fields.folder_id;
+  const searchQuery = fields.search_query;
+  const page = fields.page;
+  if (!isAction(rawAction) || typeof organizationId !== "string" || organizationId === "") return null;
+  if ((rawAction === "bind_project" || rawAction === "rename_project") && (typeof projectId !== "string" || projectId === "")) return null;
+  if (rawAction === "search_page" && (typeof searchQuery !== "string" || !validPage(page))) return null;
+  if (folderId !== undefined && (typeof folderId !== "string" || folderId === "")) return null;
+  if (page !== undefined && !validPage(page)) return null;
  return {
    action: rawAction,
    organization_id: organizationId,
    ...(typeof projectId === "string" && projectId !== "" ? { project_id: projectId } : {}),
    ...(typeof folderId === "string" && folderId !== "" ? { folder_id: folderId } : {}),
+    ...(typeof searchQuery === "string" ? { search_query: searchQuery.slice(0, 100) } : {}),
+    ...(typeof page === "number" ? { page } : {}),
  };
 }

+function onboardingSummary(organizationName: string, view: ProjectOnboardingView): string {
+  if (view.mode === "search") {
+    const result = view.result;
+    return [
+      "这个飞书群还没有绑定项目。",
+      "",
+      `组织: **${escapeMarkdown(organizationName)}**`,
+      `搜索: **${escapeMarkdown(result.query)}**`,
+      result.totalItems === 0
+        ? "没有匹配的可绑定项目，请换一个关键词。"
+        : `共 **${result.totalItems}** 个匹配结果 · 第 **${result.page}/${result.totalPages}** 页`,
+    ].join("\n");
+  }
+  const location = view.result.breadcrumb === "" ? "根目录" : view.result.breadcrumb;
+  return [
+    "这个飞书群还没有绑定项目。",
+    "",
+    `组织: **${escapeMarkdown(organizationName)}**`,
+    `当前位置: **${escapeMarkdown(location)}**`,
+    "可以进入 folder 浏览，或选择有管理权限的未绑定项目。",
+  ].join("\n");
+}
+
+function appendFolderNavigation(elements: unknown[], organizationId: string, result: ProjectFolderPage): void {
+  const navigation: unknown[] = [];
+  if (result.folderId !== null) {
+    navigation.push(actionButton("⬆ 上一级", {
+      action: "browse_folder",
+      organization_id: organizationId,
+      ...(result.parentFolderId !== null ? { folder_id: result.parentFolderId } : {}),
+      page: 1,
+    }));
+  }
+  for (const folder of result.childFolders) {
+    navigation.push(actionButton(`📁 ${buttonLabel(folder.name, 22)}`, {
+      action: "browse_folder",
+      organization_id: organizationId,
+      folder_id: folder.folderId,
+      page: 1,
+    }));
+  }
+  for (let index = 0; index < navigation.length; index += 5) {
+    elements.push({ tag: "action", actions: navigation.slice(index, index + 5) });
+  }
+}
+
+function appendProjectResults(
+  elements: unknown[],
+  organizationId: string,
+  projects: readonly ProjectDiscoveryPage["items"][number][],
+): void {
+  for (const project of projects) {
+    const path = project.breadcrumb === "" ? "根目录" : project.breadcrumb;
+    elements.push({
+      tag: "markdown",
+      content: `**${escapeMarkdown(project.name)}**\n${escapeMarkdown(path)}`,
+    });
+    elements.push({
+      tag: "action",
+      actions: [actionButton("绑定这个项目", {
+        action: "bind_project",
+        organization_id: organizationId,
+        project_id: project.projectId,
+      })],
+    });
+  }
+}
+
+function appendPagination(elements: unknown[], organizationId: string, view: ProjectOnboardingView): void {
+  const result = projectPage(view);
+  if (result.totalPages <= 1) return;
+  const actions: unknown[] = [];
+  if (result.page > 1) actions.push(pageButton("上一页", organizationId, view, result.page - 1));
+  if (result.page < result.totalPages) actions.push(pageButton("下一页", organizationId, view, result.page + 1));
+  elements.push({ tag: "action", actions });
+}
+
+function appendCreation(
+  elements: unknown[],
+  organizationId: string,
+  canCreateProject: boolean,
+  view: ProjectOnboardingView,
+): void {
+  if (!canCreateProject || view.mode !== "browse") return;
+  elements.push({
+    tag: "action",
+    actions: [actionButton(view.result.folderId === null ? "新建项目" : "在此 folder 新建项目", {
+      action: "create_project_from_chat",
+      organization_id: organizationId,
+      ...(view.result.folderId !== null ? { folder_id: view.result.folderId } : {}),
+    }, "primary")],
+  });
+}
+
+function pageButton(label: string, organizationId: string, view: ProjectOnboardingView, page: number): unknown {
+  if (view.mode === "search") {
+    return actionButton(label, {
+      action: "search_page",
+      organization_id: organizationId,
+      search_query: view.result.query,
+      page,
+    });
+  }
+  return actionButton(label, {
+    action: "browse_folder",
+    organization_id: organizationId,
+    ...(view.result.folderId !== null ? { folder_id: view.result.folderId } : {}),
+    page,
+  });
+}
+
+function projectPage(view: ProjectOnboardingView): ProjectDiscoveryPage {
+  if (view.mode === "search") return view.result;
+  return {
+    query: "",
+    page: view.result.page,
+    pageSize: view.result.pageSize,
+    totalItems: view.result.totalFolders + view.result.totalProjects,
+    totalPages: view.result.totalPages,
+    items: view.result.projects,
+  };
+}
+
+function actionButton(
+  label: string,
+  value: ProjectOnboardingActionValue,
+  type: "default" | "primary" = "default",
+): unknown {
+  return {
+    tag: "button",
+    text: { tag: "plain_text", content: label },
+    type,
+    value: { project_onboarding: value },
+  };
+}
+
+function isAction(value: unknown): value is ProjectOnboardingActionValue["action"] {
+  return value === "create_project_from_chat" || value === "bind_project"
+    || value === "browse_folder" || value === "search_page" || value === "rename_project";
+}
+
+function validPage(value: unknown): value is number {
+  return typeof value === "number" && Number.isSafeInteger(value) && value >= 1 && value <= 10_000;
+}
+
 function unwrapValue(value: unknown): unknown {
  if (typeof value !== "string") return value;
-  try {
-    return JSON.parse(value);
-  } catch {
-    return value;
-  }
-}
-
-function buttonProjectLabel(project: OnboardingProjectOption): string {
-  const folderPrefix = project.folderName === undefined ? "" : `${project.folderName} / `;
-  const label = `${folderPrefix}${project.name}`;
-  return buttonLabel(label, 24);
+  try { return JSON.parse(value); } catch { return value; }
 }

 function buttonLabel(label: string, maxLength: number): string {
@@ -99,6 +99,19 @@ export function createSlashCommandRegistry(deps: SlashCommandRegistryDeps): Read
    },
  });

+  add({
+    name: "project",
+    usage: "/project",
+    summary: "打开当前项目管理卡片，可修改项目名称。",
+    details: [
+      "要求操作者拥有当前项目的 MANAGE 权限。",
+      "实际卡片由飞书 trigger adapter 渲染，不创建 agent run。",
+    ],
+    run: async ({ chatId, rt, sendOptions }) => {
+      await sendText(rt, chatId, "请在飞书项目群中使用 @bot /project 打开项目管理卡片。", sendOptions);
+    },
+  });
+
  add({
    name: "resume",
    usage: "/resume",
@@ -58,16 +58,18 @@ import {
  bindFeishuChatToProject,
  createProjectFromFeishuChat,
  ensureOrganizationProjectSettings,
+  renameProjectForActor,
 } from "../projectOnboarding.js";
 import {
+  buildProjectManagementCard,
  buildProjectOnboardingResolvedCard,
  buildUnboundChatOnboardingCard,
  projectOnboardingActionFromValue,
-  type OnboardingFolderOption,
-  type OnboardingProjectOption,
  type ProjectOnboardingActionValue,
+  type ProjectOnboardingView,
 } from "./projectOnboardingCard.js";
 import { SiloFixedWindowRateLimiter } from "../deployment/siloRateLimit.js";
+import { browseBindableFolder, discoverBindableProjects } from "../projectDiscovery.js";

 export { ApprovalManager } from "./approval.js";
 export type { ApprovalResult, PendingApproval } from "./approval.js";
@@ -754,21 +756,91 @@ export function makeTriggerHandler(deps: TriggerDeps): TriggerHandler {
    }

    try {
+      const organization = await resolveSingleActiveOrganizationForFeishuUser(operatorOpenId);
+      if (organization.status !== "ok") throw new Error(organization.message);
+      if (organization.organizationId !== action.organization_id) {
+        throw new Error("project onboarding organization mismatch");
+      }
+      if (action.action === "rename_project") {
+        const projectId = action.project_id;
+        if (projectId === undefined) throw new Error("rename_project action requires project_id");
+        const binding = await deps.prisma.projectGroupBinding.findFirst({
+          where: { chatId, projectId, archivedAt: null },
+          select: { id: true },
+        });
+        if (binding === null) throw new Error("project rename requires the project to be bound to this chat");
+        const submittedName = event.action.form_value?.["project_name"];
+        if (typeof submittedName !== "string") throw new Error("project rename form is missing project_name");
+        const renamed = await renameProjectForActor(deps.prisma, {
+          organizationId: organization.organizationId,
+          projectId,
+          actorFeishuOpenId: operatorOpenId,
+          name: submittedName.slice(0, 100),
+        });
+        if (messageId === undefined) throw new Error("project rename requires message id");
+        await patchCard(rt, messageId, buildProjectManagementCard({
+          organizationId: organization.organizationId,
+          projectId: renamed.projectId,
+          projectName: renamed.name,
+          title: "项目名称已更新",
+        }));
+        deps.logger.info({ chatId, projectId, operatorOpenId }, "project onboarding: project renamed");
+        return;
+      }
+      if (action.action === "browse_folder" || action.action === "search_page") {
+        const activeBinding = await deps.prisma.projectGroupBinding.findFirst({
+          where: { chatId, archivedAt: null },
+          select: { projectId: true },
+        });
+        if (activeBinding !== null) throw new Error(`chat is already bound to project ${activeBinding.projectId}`);
+        const settings = await ensureOrganizationProjectSettings(deps.prisma, organization.organizationId);
+        const view = action.action === "search_page"
+          ? await searchOnboardingView({
+              organizationId: organization.organizationId,
+              actorFeishuOpenId: operatorOpenId,
+              isOrgAdmin: isOrgAdminRole(organization.role),
+              query: action.search_query ?? "",
+              page: action.page ?? 1,
+            })
+          : await browseOnboardingView({
+              organizationId: organization.organizationId,
+              actorFeishuOpenId: operatorOpenId,
+              isOrgAdmin: isOrgAdminRole(organization.role),
+              folderId: action.folder_id ?? null,
+              page: action.page ?? 1,
+            });
+        if (messageId === undefined) throw new Error("project onboarding navigation requires message id");
+        await patchCard(rt, messageId, buildUnboundChatOnboardingCard({
+          organizationId: organization.organizationId,
+          organizationName: organization.organizationName,
+          canCreateProject: settings.membersCanCreateProjects || isOrgAdminRole(organization.role),
+          view,
+        }));
+        deps.logger.info(
+          { chatId, operatorOpenId, action: action.action, folderId: action.folder_id, page: action.page },
+          "project onboarding: navigated discovery card",
+        );
+        return;
+      }
+
      if (action.action === "create_project_from_chat") {
        const name = defaultProjectNameForChat(chatId);
        const project = await createProjectFromFeishuChat(deps.prisma, {
-          organizationId: action.organization_id,
+          organizationId: organization.organizationId,
          actorFeishuOpenId: operatorOpenId,
          chatId,
          name,
          workspaceRoot: projectWorkspaceRoot,
          folderId: action.folder_id,
        });
-        await resolveProjectOnboardingCard(rt, messageId, {
+        if (messageId !== undefined) {
+          await patchCard(rt, messageId, buildProjectManagementCard({
+            organizationId: organization.organizationId,
+            projectId: project.projectId,
+            projectName: name,
            title: "已创建并绑定项目",
-          body: `项目 **${escapeCardMarkdown(name)}** 已绑定到本群。后续 @bot 会进入这个项目的 session。`,
-          template: "green",
-        });
+          }));
+        }
        deps.logger.info({ chatId, projectId: project.projectId, operatorOpenId }, "project onboarding: created project from chat");
        return;
      }
@@ -777,16 +849,31 @@ export function makeTriggerHandler(deps: TriggerDeps): TriggerHandler {
      if (projectId === undefined) {
        throw new Error("bind_project action requires project_id");
      }
+      const target = await deps.prisma.project.findUnique({
+        where: { id: projectId },
+        select: { organizationId: true },
+      });
+      if (target === null) throw new Error(`project not found: ${projectId}`);
+      if (target.organizationId !== organization.organizationId) {
+        throw new Error("project onboarding project organization mismatch");
+      }
      const project = await bindFeishuChatToProject(deps.prisma, {
        projectId,
        actorFeishuOpenId: operatorOpenId,
        chatId,
      });
-      await resolveProjectOnboardingCard(rt, messageId, {
-        title: "已绑定项目",
-        body: `本群已绑定到项目 \`${project.projectId}\`。后续 @bot 会进入这个项目的 session。`,
-        template: "green",
+      if (messageId !== undefined) {
+        const boundProject = await deps.prisma.project.findUniqueOrThrow({
+          where: { id: project.projectId },
+          select: { name: true },
        });
+        await patchCard(rt, messageId, buildProjectManagementCard({
+          organizationId: organization.organizationId,
+          projectId: project.projectId,
+          projectName: boundProject.name,
+          title: "已绑定项目",
+        }));
+      }
      deps.logger.info({ chatId, projectId: project.projectId, operatorOpenId }, "project onboarding: bound existing project");
    } catch (e) {
      const reason = e instanceof Error ? e.message : String(e);
@@ -1011,6 +1098,39 @@ export function makeTriggerHandler(deps: TriggerDeps): TriggerHandler {
      }

      if (invocation !== null) {
+        if (invocation.name === "project") {
+          if (invocation.args.length > 0) {
+            await sendText(rt, chatId, "用法: /project（打开当前项目管理卡片）", sendOptionsForTriggerMessage(msg));
+            return;
+          }
+          const project = await deps.prisma.project.findUniqueOrThrow({
+            where: { id: projectId },
+            select: { id: true, name: true, organizationId: true },
+          });
+          const organization = await resolveSingleActiveOrganizationForFeishuUser(senderOpenId);
+          if (organization.status !== "ok" || organization.organizationId !== project.organizationId) {
+            await sendText(rt, chatId, "当前身份不属于该项目组织。", sendOptionsForTriggerMessage(msg));
+            return;
+          }
+          if (!isOrgAdminRole(organization.role)) {
+            const decision = await authorizer.can({
+              actor,
+              action: "collaborator.manage",
+              resource: { type: "PROJECT", id: projectId },
+            });
+            if (!decision.allowed) {
+              await sendText(rt, chatId, "你没有管理当前项目的权限。", sendOptionsForTriggerMessage(msg));
+              return;
+            }
+          }
+          await sendCard(rt, chatId, buildProjectManagementCard({
+            organizationId: project.organizationId,
+            projectId: project.id,
+            projectName: project.name,
+          }), sendOptionsForTriggerMessage(msg));
+          deps.logger.info({ chatId, projectId, senderOpenId }, "feishu project management card opened");
+          return;
+        }
        const slashCommand = slashCommands.get(invocation.name);
        if (slashCommand !== undefined) {
          try {
@@ -1071,13 +1191,21 @@ export function makeTriggerHandler(deps: TriggerDeps): TriggerHandler {
    const settings = await ensureOrganizationProjectSettings(deps.prisma, organization.organizationId);
    const canCreateProject = settings.membersCanCreateProjects || isOrgAdminRole(organization.role);
    const searchQuery = (extractPrompt(msg) ?? "").trim().slice(0, 100);
-    const projects = await listBindableProjectsForActor({
+    const view = searchQuery === ""
+      ? await browseOnboardingView({
          organizationId: organization.organizationId,
          actorFeishuOpenId: senderOpenId,
          isOrgAdmin: isOrgAdminRole(organization.role),
-      searchQuery,
+          folderId: null,
+          page: 1,
+        })
+      : await searchOnboardingView({
+          organizationId: organization.organizationId,
+          actorFeishuOpenId: senderOpenId,
+          isOrgAdmin: isOrgAdminRole(organization.role),
+          query: searchQuery,
+          page: 1,
        });
-    const folders = await listCreatableRootFolders(organization.organizationId);

    await sendCard(
      rt,
@@ -1085,10 +1213,8 @@ export function makeTriggerHandler(deps: TriggerDeps): TriggerHandler {
      buildUnboundChatOnboardingCard({
        organizationId: organization.organizationId,
        organizationName: organization.organizationName,
-        folders,
-        projects,
        canCreateProject,
-        searchQuery,
+        view,
      }),
      sendOptionsForTriggerMessage(msg),
    );
@@ -1181,67 +1307,44 @@ export function makeTriggerHandler(deps: TriggerDeps): TriggerHandler {
    };
  }

-  async function listBindableProjectsForActor(input: {
+  async function searchOnboardingView(input: {
    readonly organizationId: string;
    readonly actorFeishuOpenId: string;
    readonly isOrgAdmin: boolean;
-    readonly searchQuery: string;
-  }): Promise<readonly OnboardingProjectOption[]> {
-    const allowed: OnboardingProjectOption[] = [];
-    let cursor: string | undefined;
-    while (allowed.length < 5) {
-      const candidates = await deps.prisma.project.findMany({
-        where: {
+    readonly query: string;
+    readonly page: number;
+  }): Promise<ProjectOnboardingView> {
+    return {
+      mode: "search",
+      result: await discoverBindableProjects({
+        prisma: deps.prisma,
        organizationId: input.organizationId,
-        archivedAt: null,
-        groupBindings: { none: { archivedAt: null } },
-        ...(input.searchQuery === "" ? {} : {
-          OR: [
-            { name: { contains: input.searchQuery, mode: "insensitive" } },
-            { folder: { name: { contains: input.searchQuery, mode: "insensitive" } } },
-          ],
+        actorFeishuOpenId: input.actorFeishuOpenId,
+        isOrgAdmin: input.isOrgAdmin,
+        query: input.query,
+        page: input.page,
      }),
-        },
-        select: {
-          id: true,
-          name: true,
-          folder: { select: { name: true } },
-        },
-        orderBy: [{ updatedAt: "desc" }, { id: "desc" }],
-        take: 20,
-        ...(cursor === undefined ? {} : { cursor: { id: cursor }, skip: 1 }),
-      });
-      for (const project of candidates) {
-        if (!input.isOrgAdmin) {
-          const decision = await authorizer.can({
-            actor: { feishuOpenId: input.actorFeishuOpenId },
-            action: "collaborator.manage",
-            resource: { type: "PROJECT", id: project.id },
-          });
-          if (!decision.allowed) continue;
-        }
-        allowed.push({
-          projectId: project.id,
-          name: project.name,
-          ...(project.folder?.name !== undefined ? { folderName: project.folder.name } : {}),
-        });
-        if (allowed.length >= 5) break;
-      }
-      if (candidates.length < 20) break;
-      cursor = candidates.at(-1)?.id;
-      if (cursor === undefined) break;
-    }
-    return allowed;
+    };
  }

-  async function listCreatableRootFolders(organizationId: string): Promise<readonly OnboardingFolderOption[]> {
-    const folders = await deps.prisma.folder.findMany({
-      where: { organizationId, parentId: null, archivedAt: null },
-      select: { id: true, name: true },
-      orderBy: [{ sortKey: "asc" }, { name: "asc" }],
-      take: 3,
-    });
-    return folders.map((folder) => ({ folderId: folder.id, name: folder.name }));
+  async function browseOnboardingView(input: {
+    readonly organizationId: string;
+    readonly actorFeishuOpenId: string;
+    readonly isOrgAdmin: boolean;
+    readonly folderId: string | null;
+    readonly page: number;
+  }): Promise<ProjectOnboardingView> {
+    return {
+      mode: "browse",
+      result: await browseBindableFolder({
+        prisma: deps.prisma,
+        organizationId: input.organizationId,
+        actorFeishuOpenId: input.actorFeishuOpenId,
+        isOrgAdmin: input.isOrgAdmin,
+        folderId: input.folderId,
+        page: input.page,
+      }),
+    };
  }

  return Object.assign(onMessage, { onCardAction, approvalManager });
@@ -1505,10 +1608,6 @@ function shortId(value: string): string {
  return value.length <= 8 ? value : value.slice(-8);
 }

-function escapeCardMarkdown(value: string): string {
-  return value.replace(/([`*_{}[\]<>])/g, "\\$1");
-}
-
 /** Lark text-message content: `{"text":"@_user_1 do something"}`. */
 const TextMessageContentSchema = z.object({ text: z.string() });

@@ -4,7 +4,7 @@
 * Folders are transparent navigation nodes (not ACL resources). Project grants
 * stay on PROJECT. Archive folder refuses when active children/projects remain.
 */
-import type { Prisma, PrismaClient } from "@prisma/client";
+import { Prisma, type PrismaClient } from "@prisma/client";
 import {
  archiveFeishuChatBinding,
  createFolder,
@@ -123,11 +123,25 @@ export async function renameFolder(
  return prisma.$transaction(async (tx) => {
    await lockActiveOrganization(tx, input.organizationId);
    const folder = await requireActiveFolder(tx, input.folderId, input.organizationId);
+    if (folder.kind === "SYSTEM_INBOX" && (input.name !== undefined || input.parentId !== undefined)) {
+      throw new Error("system Inbox cannot be renamed or moved");
+    }
    if (input.parentId !== undefined && input.parentId !== null) {
      if (input.parentId === folder.id) {
        throw new Error("folder cannot be its own parent");
      }
      await requireActiveFolder(tx, input.parentId, input.organizationId);
+      const descendant = await tx.$queryRaw<Array<{ found: boolean }>>(Prisma.sql`
+        WITH RECURSIVE descendants AS (
+          SELECT "id" FROM "Folder" WHERE "parentId" = ${folder.id} AND "archivedAt" IS NULL
+          UNION ALL
+          SELECT child."id" FROM "Folder" child
+          JOIN descendants parent ON child."parentId" = parent."id"
+          WHERE child."archivedAt" IS NULL
+        )
+        SELECT EXISTS(SELECT 1 FROM descendants WHERE "id" = ${input.parentId}) AS found
+      `);
+      if (descendant[0]?.found === true) throw new Error("folder cannot be moved below its descendant");
    }
    const name =
      input.name !== undefined ? requireNonEmpty(input.name, "folder name") : undefined;
@@ -152,6 +166,7 @@ export async function archiveFolder(
  return prisma.$transaction(async (tx) => {
    await lockActiveOrganization(tx, input.organizationId);
    const folder = await requireActiveFolder(tx, input.folderId, input.organizationId);
+    if (folder.kind === "SYSTEM_INBOX") throw new Error("system Inbox cannot be archived");
    const childFolders = await tx.folder.count({
      where: { parentId: folder.id, archivedAt: null },
    });
@@ -324,10 +339,10 @@ async function requireActiveFolder(
  prisma: PrismaClient | Prisma.TransactionClient,
  folderId: string,
  organizationId: string,
-): Promise<{ readonly id: string; readonly organizationId: string }> {
+): Promise<{ readonly id: string; readonly organizationId: string; readonly kind: "REGULAR" | "SYSTEM_INBOX" }> {
  const folder = await prisma.folder.findUnique({
    where: { id: folderId },
-    select: { id: true, organizationId: true, archivedAt: true },
+    select: { id: true, organizationId: true, kind: true, archivedAt: true },
  });
  if (folder === null || folder.archivedAt !== null || folder.organizationId !== organizationId) {
    throw new Error(`active folder not found: ${folderId}`);
@@ -0,0 +1,315 @@
+import { Prisma, type PrismaClient } from "@prisma/client";
+import { PrismaPrincipalResolver } from "./permission.js";
+
+const DEFAULT_PAGE_SIZE = 8;
+const MAX_PAGE_SIZE = 10;
+
+export interface ProjectDiscoveryItem {
+  readonly projectId: string;
+  readonly name: string;
+  readonly breadcrumb: string;
+}
+
+export interface ProjectDiscoveryPage {
+  readonly query: string;
+  readonly page: number;
+  readonly pageSize: number;
+  readonly totalItems: number;
+  readonly totalPages: number;
+  readonly items: readonly ProjectDiscoveryItem[];
+}
+
+export interface ProjectFolderPage {
+  readonly folderId: string | null;
+  readonly parentFolderId: string | null;
+  readonly breadcrumb: string;
+  readonly page: number;
+  readonly pageSize: number;
+  readonly totalPages: number;
+  readonly totalFolders: number;
+  readonly totalProjects: number;
+  readonly childFolders: readonly { readonly folderId: string; readonly name: string }[];
+  readonly projects: readonly ProjectDiscoveryItem[];
+}
+
+interface DiscoveryCandidate extends ProjectDiscoveryItem {
+  readonly updatedAt: Date;
+}
+
+export function normalizeProjectSearchQuery(value: string): string {
+  return value.normalize("NFKC").toLocaleLowerCase("und").replace(/[\s_.:/\\-]+/gu, "");
+}
+
+export async function discoverBindableProjects(input: {
+  readonly prisma: PrismaClient;
+  readonly organizationId: string;
+  readonly actorFeishuOpenId: string;
+  readonly isOrgAdmin: boolean;
+  readonly query: string;
+  readonly page?: number | undefined;
+  readonly pageSize?: number | undefined;
+}): Promise<ProjectDiscoveryPage> {
+  const query = input.query.trim().slice(0, 100);
+  const normalizedQuery = normalizeProjectSearchQuery(query);
+  const manageableIds = input.isOrgAdmin
+    ? null
+    : await listManageableProjectIds(input.prisma, input.organizationId, input.actorFeishuOpenId);
+  const pageSize = normalizedPageSize(input.pageSize);
+  const totalItems = await countSearchCandidates(
+    input.prisma,
+    input.organizationId,
+    normalizedQuery,
+    searchTokens(query),
+    manageableIds,
+  );
+  const totalPages = Math.max(1, Math.ceil(totalItems / pageSize));
+  const page = normalizedPage(input.page, totalPages);
+  const items = await searchCandidates(
+    input.prisma,
+    input.organizationId,
+    normalizedQuery,
+    searchTokens(query),
+    manageableIds,
+    page,
+    pageSize,
+  );
+  return { query, page, pageSize, totalItems, totalPages, items };
+}
+
+export async function browseBindableFolder(input: {
+  readonly prisma: PrismaClient;
+  readonly organizationId: string;
+  readonly actorFeishuOpenId: string;
+  readonly isOrgAdmin: boolean;
+  readonly folderId: string | null;
+  readonly page?: number | undefined;
+  readonly pageSize?: number | undefined;
+}): Promise<ProjectFolderPage> {
+  const folder = input.folderId === null
+    ? null
+    : await input.prisma.folder.findFirst({
+        where: { id: input.folderId, organizationId: input.organizationId, archivedAt: null },
+        select: { id: true, parentId: true },
+      });
+  if (input.folderId !== null && folder === null) throw new Error(`folder not found: ${input.folderId}`);
+
+  const manageableIds = input.isOrgAdmin
+    ? null
+    : await listManageableProjectIds(input.prisma, input.organizationId, input.actorFeishuOpenId);
+  const inbox = input.folderId === null
+    ? await input.prisma.folder.findFirst({
+        where: { organizationId: input.organizationId, kind: "SYSTEM_INBOX", archivedAt: null },
+        select: { id: true },
+      })
+    : null;
+  const projectWhere: Prisma.ProjectSearchDocumentWhereInput = {
+    organizationId: input.organizationId,
+    ...(manageableIds === null ? {} : { projectId: { in: [...manageableIds] } }),
+    project: {
+      ...(input.folderId === null
+        ? { OR: [{ folderId: null }, ...(inbox === null ? [] : [{ folderId: inbox.id }])] }
+        : { folderId: input.folderId }),
+      archivedAt: null,
+      groupBindings: { none: { archivedAt: null } },
+    },
+  };
+  const folderWhere: Prisma.FolderWhereInput = {
+    organizationId: input.organizationId,
+    parentId: input.folderId,
+    archivedAt: null,
+    ...(input.folderId === null ? { kind: { not: "SYSTEM_INBOX" } } : {}),
+  };
+  const [breadcrumb, totalFolders, totalProjects] = await Promise.all([
+    input.folderId === null ? Promise.resolve("") : folderBreadcrumb(input.prisma, input.folderId),
+    input.prisma.folder.count({ where: folderWhere }),
+    input.prisma.projectSearchDocument.count({ where: projectWhere }),
+  ]);
+  const pageSize = normalizedPageSize(input.pageSize);
+  const totalPages = Math.max(1, Math.ceil((totalFolders + totalProjects) / pageSize));
+  const page = normalizedPage(input.page, totalPages);
+  const offset = (page - 1) * pageSize;
+  const folderSkip = Math.min(offset, totalFolders);
+  const folderTake = Math.min(pageSize, Math.max(0, totalFolders - folderSkip));
+  const projectSkip = Math.max(0, offset - totalFolders);
+  const projectTake = pageSize - folderTake;
+  const [childFolders, candidates] = await Promise.all([
+    folderTake === 0 ? Promise.resolve([]) : input.prisma.folder.findMany({
+      where: folderWhere,
+      select: { id: true, name: true },
+      orderBy: [{ sortKey: "asc" }, { name: "asc" }, { id: "asc" }],
+      skip: folderSkip,
+      take: folderTake,
+    }),
+    projectTake === 0 ? Promise.resolve([]) : input.prisma.projectSearchDocument.findMany({
+      where: projectWhere,
+      select: { projectId: true, name: true, breadcrumb: true },
+      orderBy: [{ name: "asc" }, { projectId: "asc" }],
+      skip: projectSkip,
+      take: projectTake,
+    }),
+  ]);
+  return {
+    folderId: input.folderId,
+    parentFolderId: folder?.parentId ?? null,
+    breadcrumb,
+    page,
+    pageSize,
+    totalPages,
+    totalFolders,
+    totalProjects,
+    childFolders: childFolders.map((child) => ({ folderId: child.id, name: child.name })),
+    projects: candidates,
+  };
+}
+
+async function searchCandidates(
+  prisma: PrismaClient,
+  organizationId: string,
+  normalizedQuery: string,
+  tokens: readonly string[],
+  manageableIds: readonly string[] | null,
+  page: number,
+  pageSize: number,
+): Promise<readonly DiscoveryCandidate[]> {
+  const access = accessPredicate(manageableIds);
+  const offset = (page - 1) * pageSize;
+  if (normalizedQuery === "") {
+    return prisma.$queryRaw<DiscoveryCandidate[]>(Prisma.sql`
+      SELECT d."projectId", d."name", d."breadcrumb", p."updatedAt"
+      FROM "ProjectSearchDocument" d
+      JOIN "Project" p ON p."id" = d."projectId"
+      WHERE d."organizationId" = ${organizationId}
+        AND p."archivedAt" IS NULL
+        AND NOT EXISTS (
+          SELECT 1 FROM "ProjectGroupBinding" b
+          WHERE b."projectId" = p."id" AND b."archivedAt" IS NULL
+        )
+        ${access}
+      ORDER BY p."updatedAt" DESC, p."id" DESC
+      LIMIT ${pageSize} OFFSET ${offset}
+    `);
+  }
+  const matches = searchPredicate(normalizedQuery, tokens);
+  return prisma.$queryRaw<DiscoveryCandidate[]>(Prisma.sql`
+    SELECT d."projectId", d."name", d."breadcrumb", p."updatedAt"
+    FROM "ProjectSearchDocument" d
+    JOIN "Project" p ON p."id" = d."projectId"
+    WHERE d."organizationId" = ${organizationId}
+      AND p."archivedAt" IS NULL
+      AND NOT EXISTS (
+        SELECT 1 FROM "ProjectGroupBinding" b
+        WHERE b."projectId" = p."id" AND b."archivedAt" IS NULL
+      )
+      ${access}
+      AND ${matches}
+    ORDER BY
+      CASE
+        WHEN d."normalizedCode" = ${normalizedQuery} THEN 0
+        WHEN d."normalizedName" = ${normalizedQuery} THEN 1
+        WHEN strpos(d."normalizedCode", ${normalizedQuery}) = 1 THEN 2
+        WHEN strpos(d."normalizedName", ${normalizedQuery}) = 1 THEN 3
+        WHEN strpos(d."normalizedName", ${normalizedQuery}) > 0 THEN 4
+        WHEN strpos(d."normalizedBreadcrumb", ${normalizedQuery}) > 0 THEN 5
+        ELSE 6
+      END,
+      similarity(d."normalizedName", ${normalizedQuery}) DESC,
+      p."updatedAt" DESC,
+      p."id" ASC
+    LIMIT ${pageSize} OFFSET ${offset}
+  `);
+}
+
+async function countSearchCandidates(
+  prisma: PrismaClient,
+  organizationId: string,
+  normalizedQuery: string,
+  tokens: readonly string[],
+  manageableIds: readonly string[] | null,
+): Promise<number> {
+  const access = accessPredicate(manageableIds);
+  const queryPredicate = normalizedQuery === "" ? Prisma.empty : Prisma.sql`AND ${searchPredicate(normalizedQuery, tokens)}`;
+  const rows = await prisma.$queryRaw<Array<{ count: number }>>(Prisma.sql`
+    SELECT count(*)::int AS count
+    FROM "ProjectSearchDocument" d
+    JOIN "Project" p ON p."id" = d."projectId"
+    WHERE d."organizationId" = ${organizationId}
+      AND p."archivedAt" IS NULL
+      AND NOT EXISTS (
+        SELECT 1 FROM "ProjectGroupBinding" b
+        WHERE b."projectId" = p."id" AND b."archivedAt" IS NULL
+      )
+      ${access}
+      ${queryPredicate}
+  `);
+  return rows[0]?.count ?? 0;
+}
+
+async function listManageableProjectIds(
+  prisma: PrismaClient,
+  organizationId: string,
+  actorFeishuOpenId: string,
+): Promise<readonly string[]> {
+  const resolution = await new PrismaPrincipalResolver(prisma).resolveActor(
+    { feishuOpenId: actorFeishuOpenId },
+    { organizationId },
+  );
+  const grants = await prisma.permissionGrant.findMany({
+    where: {
+      resourceType: "PROJECT",
+      role: "MANAGE",
+      revokedAt: null,
+      OR: resolution.principals.map((principal) => ({
+        principalType: principal.type,
+        principalId: principal.id,
+      })),
+    },
+    select: { resourceId: true },
+  });
+  const projectIds = [...new Set(grants.map((grant) => grant.resourceId))];
+  if (projectIds.length === 0) return [];
+  const projects = await prisma.project.findMany({
+    where: { id: { in: projectIds }, organizationId, archivedAt: null },
+    select: { id: true },
+  });
+  return projects.map((project) => project.id);
+}
+
+function searchPredicate(normalizedQuery: string, tokens: readonly string[]): Prisma.Sql {
+  const tokenMatch = tokens.length <= 1
+    ? Prisma.sql`FALSE`
+    : Prisma.sql`(${Prisma.join(tokens.map((token) => Prisma.sql`strpos(d."normalizedSearchText", ${token}) > 0`), " AND ")})`;
+  return Prisma.sql`(
+    strpos(d."normalizedCode", ${normalizedQuery}) > 0
+    OR strpos(d."normalizedName", ${normalizedQuery}) > 0
+    OR strpos(d."normalizedBreadcrumb", ${normalizedQuery}) > 0
+    OR d."normalizedName" % ${normalizedQuery}
+    OR ${tokenMatch}
+  )`;
+}
+
+function accessPredicate(manageableIds: readonly string[] | null): Prisma.Sql {
+  if (manageableIds === null) return Prisma.empty;
+  if (manageableIds.length === 0) return Prisma.sql`AND FALSE`;
+  return Prisma.sql`AND p."id" IN (${Prisma.join(manageableIds)})`;
+}
+
+function searchTokens(query: string): readonly string[] {
+  return query.normalize("NFKC").trim().split(/\s+/u).map(normalizeProjectSearchQuery).filter(Boolean);
+}
+
+function normalizedPageSize(value = DEFAULT_PAGE_SIZE): number {
+  return Math.min(MAX_PAGE_SIZE, Math.max(1, Math.trunc(value)));
+}
+
+function normalizedPage(value: number | undefined, totalPages: number): number {
+  return Math.min(totalPages, Math.max(1, Math.trunc(value ?? 1)));
+}
+
+async function folderBreadcrumb(prisma: PrismaClient, folderId: string): Promise<string> {
+  const rows = await prisma.$queryRaw<Array<{ breadcrumb: string }>>(Prisma.sql`
+    SELECT cph_folder_breadcrumb(${folderId}) AS breadcrumb
+  `);
+  const breadcrumb = rows[0]?.breadcrumb;
+  if (breadcrumb === undefined) throw new Error(`failed to resolve folder breadcrumb: ${folderId}`);
+  return breadcrumb;
+}
@@ -53,6 +53,13 @@ export interface ArchiveFeishuChatBindingInput {
  readonly actorFeishuOpenId: string;
 }

+export interface RenameProjectForActorInput {
+  readonly organizationId: string;
+  readonly projectId: string;
+  readonly actorFeishuOpenId: string;
+  readonly name: string;
+}
+
 export interface CreateFolderInput {
  readonly organizationId: string;
  readonly name: string;
@@ -131,6 +138,44 @@ export async function moveProjectToFolder(
  });
 }

+export async function renameProjectForActor(
+  prisma: PrismaClient,
+  input: RenameProjectForActorInput,
+): Promise<{ readonly projectId: string; readonly name: string }> {
+  const name = requireNonEmpty(input.name, "project name");
+  const project = await prisma.project.findUnique({
+    where: { id: input.projectId },
+    select: { id: true, organizationId: true, name: true },
+  });
+  if (project === null) throw new Error(`project not found: ${input.projectId}`);
+  if (project.organizationId !== input.organizationId) {
+    throw new Error(`project ${project.id} does not belong to organization ${input.organizationId}`);
+  }
+  const actor = await requireProjectManager(prisma, project.id, project.organizationId, input.actorFeishuOpenId);
+  const updated = await prisma.$transaction(async (tx) => {
+    await lockActiveOrganization(tx, project.organizationId);
+    const current = await tx.project.findUniqueOrThrow({
+      where: { id: project.id },
+      select: { name: true },
+    });
+    const renamed = await tx.project.update({
+      where: { id: project.id },
+      data: { name },
+      select: { id: true, name: true },
+    });
+    await tx.auditEntry.create({
+      data: {
+        projectId: project.id,
+        actorUserId: actor.userId,
+        action: "project.renamed",
+        metadata: { oldName: current.name, newName: name, actorVia: actor.via },
+      },
+    });
+    return renamed;
+  });
+  return { projectId: updated.id, name: updated.name };
+}
+
 export async function createProjectFromOrgAdmin(
  prisma: PrismaClient,
  input: CreateOrgAdminProjectInput,
@@ -494,12 +539,12 @@ async function ensureOrganizationProjectSettingsTx(

 async function ensureInboxFolder(prisma: Prisma.TransactionClient, organizationId: string): Promise<{ readonly id: string }> {
  const existing = await prisma.folder.findFirst({
-    where: { organizationId, parentId: null, name: "Inbox", archivedAt: null },
+    where: { organizationId, kind: "SYSTEM_INBOX", archivedAt: null },
    select: { id: true },
  });
  if (existing !== null) return existing;
  return prisma.folder.create({
-    data: { organizationId, name: "Inbox", sortKey: "000000" },
+    data: { organizationId, name: "Inbox", kind: "SYSTEM_INBOX", sortKey: "000000" },
    select: { id: true },
  });
 }
@@ -284,4 +284,59 @@ describe("admin explorer API", () => {
      });
    },
  );
+
+  it("rejects moving a folder below one of its descendants", async () => {
+    const parent = await prisma.folder.create({
+      data: { id: "folder-cycle-parent", organizationId: DEFAULT_ORG_ID, name: "Parent" },
+    });
+    const child = await prisma.folder.create({
+      data: { id: "folder-cycle-child", organizationId: DEFAULT_ORG_ID, parentId: parent.id, name: "Child" },
+    });
+
+    await expect(renameFolder(prisma, {
+      organizationId: DEFAULT_ORG_ID,
+      folderId: parent.id,
+      parentId: child.id,
+    })).rejects.toThrow("folder cannot be moved below its descendant");
+  });
+
+  it("keeps the system Inbox identity immutable", async () => {
+    const inbox = await prisma.folder.findFirstOrThrow({
+      where: { organizationId: DEFAULT_ORG_ID, kind: "SYSTEM_INBOX" },
+    });
+
+    await expect(renameFolder(prisma, {
+      organizationId: DEFAULT_ORG_ID,
+      folderId: inbox.id,
+      name: "课程",
+    })).rejects.toThrow("system Inbox cannot be renamed or moved");
+    await expect(renameFolder(prisma, {
+      organizationId: DEFAULT_ORG_ID,
+      folderId: inbox.id,
+      parentId: null,
+    })).rejects.toThrow("system Inbox cannot be renamed or moved");
+    await expect(archiveFolder(prisma, {
+      organizationId: DEFAULT_ORG_ID,
+      folderId: inbox.id,
+    })).rejects.toThrow("system Inbox cannot be archived");
+
+    await expect(prisma.folder.update({
+      where: { id: inbox.id },
+      data: { kind: "REGULAR" },
+    })).rejects.toThrow("system Inbox identity cannot be changed");
+    await expect(prisma.folder.update({
+      where: { id: inbox.id },
+      data: { id: `${inbox.id}-moved` },
+    })).rejects.toThrow("system Inbox identity cannot be changed");
+    await expect(prisma.folder.delete({ where: { id: inbox.id } }))
+      .rejects.toThrow("system Inbox cannot be deleted while its organization exists");
+    await expect(prisma.folder.create({
+      data: {
+        organizationId: DEFAULT_ORG_ID,
+        name: "Malformed",
+        kind: "SYSTEM_INBOX",
+        parentId: inbox.id,
+      },
+    })).rejects.toThrow("system Inbox must be an active root folder named Inbox");
+  });
 });
@@ -34,41 +34,20 @@ export const prisma = new PrismaClient({

 /** Truncate all tables before each test for isolation. */
 export async function resetDb(): Promise<void> {
-  const tables = [
-    "OrganizationAgentRoleSkill",
-    "OrganizationAgentRole",
-    "OrganizationAgentSkill",
-    "FeishuEventReceipt",
-    "FeishuUserIdentity",
-    "FeishuApplicationCredentialVersion",
-    "OrganizationFeishuApplicationConnection",
-    "ProviderCredentialVersion",
-    "OrganizationProviderConnection",
-    "AgentFileChange",
-    "AgentMessage",
-    "AuditEntry",
-    "PermissionSettings",
-    "PermissionGrant",
-    "RoleTriggerGrant",
-    "ExternalPrincipalMembership",
-    "ExternalDirectoryConnection",
-    "TeamExternalBinding",
-    "TeamMembership",
-    "Team",
-    "ProjectAgentLock",
-    "AgentRun",
-    "AgentSession",
-    "ProjectGroupBinding",
-    "Folder",
-    "OrganizationProjectSettings",
-    "OrganizationMembership",
-    "PlatformRoleAssignment",
-    "User",
-    "Project",
-    "Organization",
-  ];
-  // Truncate with CASCADE to wipe dependent rows in one shot.
-  await prisma.$executeRawUnsafe(`TRUNCATE TABLE ${tables.map((t) => `"${t}"`).join(", ")} RESTART IDENTITY CASCADE`);
+  // User and Organization are the aggregate roots for all domain rows; their
+  // declared FK cascades clear projects, search documents, permissions,
+  // sessions and connections without repeatedly truncating pg_trgm indexes.
+  // Event receipts and global audit rows are independent roots.
+  await prisma.$transaction([
+    prisma.feishuEventReceipt.deleteMany(),
+    prisma.auditEntry.deleteMany(),
+    // Permission resource ids are intentionally polymorphic strings, so these
+    // two tables have no FK to Project and must be cleared explicitly.
+    prisma.permissionGrant.deleteMany(),
+    prisma.permissionSettings.deleteMany(),
+    prisma.user.deleteMany(),
+    prisma.organization.deleteMany(),
+  ]);
  await seedTestOrganization();
 }

@@ -91,7 +70,7 @@ export async function seedTestOrganization(
    create: { organizationId: id, membersCanCreateProjects: true },
  });
  const inbox = await prisma.folder.findFirst({
-    where: { organizationId: id, parentId: null, name: "Inbox", archivedAt: null },
+    where: { organizationId: id, kind: "SYSTEM_INBOX", archivedAt: null },
    select: { id: true },
  });
  if (inbox === null) {
@@ -100,6 +79,7 @@ export async function seedTestOrganization(
        id: `folder_inbox_${id}`,
        organizationId: id,
        name: "Inbox",
+        kind: "SYSTEM_INBOX",
        sortKey: "000000",
      },
    });
@@ -0,0 +1,228 @@
+import { afterAll, beforeEach, describe, expect, it } from "vitest";
+import {
+  browseBindableFolder,
+  discoverBindableProjects,
+  normalizeProjectSearchQuery,
+} from "../../src/projectDiscovery.js";
+import { DEFAULT_ORG_ID, prisma, resetDb } from "./helpers.js";
+
+describe("project discovery", () => {
+  beforeEach(async () => {
+    await resetDb();
+    await seedUser("owner", "ou_owner", "OWNER");
+    await seedUser("member", "ou_member", "MEMBER");
+  });
+
+  afterAll(async () => prisma.$disconnect());
+
+  it("normalizes project codes across punctuation, width and case", () => {
+    expect(normalizeProjectSearchQuery(" ＴＨ-141 ")).toBe("th141");
+    expect(normalizeProjectSearchQuery("th_141")).toBe("th141");
+  });
+
+  it("searches normalized codes, Chinese names and complete folder breadcrumbs", async () => {
+    const root = await createFolder("root-legacy", null, "旧教学资产");
+    const subject = await createFolder("folder-physics", root.id, "物理竞赛教研");
+    const thermal = await createFolder("folder-thermal", subject.id, "TH_热学专题");
+    await createProject("project-th141", thermal.id, "TH-141_表面张力的严肃理论");
+    await createProject("project-fullwidth", thermal.id, "ＴＨ－１４２_全角编号");
+    await createProject("project-explicit-code", thermal.id, "表面课程", "PHY-001");
+    await createProject("project-other", thermal.id, "TH-211_理想气体静力学");
+
+    const byCode = await discover("TH141");
+    expect(byCode.items[0]).toMatchObject({
+      projectId: "project-th141",
+      breadcrumb: "旧教学资产 / 物理竞赛教研 / TH_热学专题",
+    });
+    await expect(discover("表面张力")).resolves.toMatchObject({
+      totalItems: 1,
+      items: [{ projectId: "project-th141" }],
+    });
+    await expect(discover("TH142")).resolves.toMatchObject({
+      items: [expect.objectContaining({ projectId: "project-fullwidth" })],
+    });
+    await expect(discover("PHY001")).resolves.toMatchObject({
+      items: [expect.objectContaining({ projectId: "project-explicit-code" })],
+    });
+    const byPath = await discover("物理竞赛教研");
+    expect(byPath.items.map((item) => item.projectId)).toEqual(expect.arrayContaining([
+      "project-th141",
+      "project-other",
+    ]));
+    await expect(discover("物理竞赛 TH141")).resolves.toMatchObject({
+      items: [expect.objectContaining({ projectId: "project-th141" })],
+    });
+    await expect(discover("%")).resolves.toMatchObject({ totalItems: 0 });
+  });
+
+  it("refreshes descendant breadcrumbs after a folder rename", async () => {
+    const root = await createFolder("root-before", null, "旧目录");
+    const child = await createFolder("child", root.id, "子目录");
+    await createProject("project-refresh", child.id, "项目");
+
+    await prisma.folder.update({ where: { id: root.id }, data: { name: "新目录" } });
+
+    await expect(discover("新目录")).resolves.toMatchObject({
+      totalItems: 1,
+      items: [{ projectId: "project-refresh", breadcrumb: "新目录 / 子目录" }],
+    });
+    await expect(discover("旧目录")).resolves.toMatchObject({ totalItems: 0 });
+  });
+
+  it("filters authorization before counting and paginating", async () => {
+    for (let index = 0; index < 12; index += 1) {
+      await createProject(`project-${index}`, null, `TH-${index}`);
+    }
+    await prisma.permissionGrant.create({
+      data: {
+        resourceType: "PROJECT",
+        resourceId: "project-11",
+        principalType: "USER",
+        principalId: "ou_member",
+        role: "MANAGE",
+      },
+    });
+
+    const result = await discoverBindableProjects({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_member",
+      isOrgAdmin: false,
+      query: "TH",
+      page: 2,
+      pageSize: 5,
+    });
+
+    expect(result).toMatchObject({ page: 1, totalItems: 1, totalPages: 1 });
+    expect(result.items.map((item) => item.projectId)).toEqual(["project-11"]);
+  });
+
+  it("browses the preserved folder tree and paginates projects", async () => {
+    const root = await createFolder("root", null, "旧教学资产");
+    const child = await createFolder("child", root.id, "物理竞赛教研");
+    await createProject("project-root", root.id, "根目录项目");
+
+    const result = await browseBindableFolder({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_owner",
+      isOrgAdmin: true,
+      folderId: root.id,
+    });
+
+    expect(result.breadcrumb).toBe("旧教学资产");
+    expect(result.parentFolderId).toBeNull();
+    expect(result.childFolders).toEqual([{ folderId: child.id, name: "物理竞赛教研" }]);
+    expect(result.projects).toEqual([{
+      projectId: "project-root",
+      name: "根目录项目",
+      breadcrumb: "旧教学资产",
+    }]);
+  });
+
+  it("hides the system Inbox at root and presents its projects as unclassified", async () => {
+    const inbox = await prisma.folder.findFirstOrThrow({
+      where: { organizationId: DEFAULT_ORG_ID, kind: "SYSTEM_INBOX" },
+    });
+    const businessRoot = await createFolder("business-root", null, "业务目录");
+    const businessInbox = await createFolder("business-inbox", businessRoot.id, "Inbox");
+    await createProject("project-inbox", inbox.id, "新项目");
+
+    const result = await browseBindableFolder({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_owner",
+      isOrgAdmin: true,
+      folderId: null,
+    });
+
+    expect(result.childFolders.map((folder) => folder.folderId)).not.toContain(inbox.id);
+    expect(result.projects).toContainEqual({
+      projectId: "project-inbox",
+      name: "新项目",
+      breadcrumb: "未分类",
+    });
+
+    const businessResult = await browseBindableFolder({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_owner",
+      isOrgAdmin: true,
+      folderId: businessRoot.id,
+    });
+    expect(businessResult.childFolders).toContainEqual({ folderId: businessInbox.id, name: "Inbox" });
+  });
+
+  it("shares one card page budget across folders and projects", async () => {
+    const root = await createFolder("folder-page-root", null, "目录分页");
+    for (let index = 0; index < 6; index += 1) {
+      await createFolder(`folder-page-${index}`, root.id, `目录-${index}`);
+      await createProject(`project-page-${index}`, root.id, `项目-${index}`);
+    }
+
+    const first = await browseBindableFolder({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_owner",
+      isOrgAdmin: true,
+      folderId: root.id,
+      pageSize: 8,
+    });
+    const second = await browseBindableFolder({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_owner",
+      isOrgAdmin: true,
+      folderId: root.id,
+      page: 2,
+      pageSize: 8,
+    });
+
+    expect(first).toMatchObject({ page: 1, totalPages: 2, totalFolders: 6, totalProjects: 6 });
+    expect(first.childFolders.length + first.projects.length).toBe(8);
+    expect(second.childFolders.length + second.projects.length).toBe(4);
+    expect([...first.projects, ...second.projects].map((project) => project.projectId).sort()).toEqual(
+      Array.from({ length: 6 }, (_, index) => `project-page-${index}`),
+    );
+  });
+});
+
+async function seedUser(id: string, feishuOpenId: string, role: "OWNER" | "MEMBER"): Promise<void> {
+  await prisma.user.create({
+    data: {
+      id,
+      feishuOpenId,
+      displayName: id,
+      organizationMemberships: { create: { organizationId: DEFAULT_ORG_ID, role } },
+    },
+  });
+}
+
+async function createFolder(id: string, parentId: string | null, name: string) {
+  return prisma.folder.create({
+    data: { id, organizationId: DEFAULT_ORG_ID, parentId, name },
+  });
+}
+
+async function createProject(id: string, folderId: string | null, name: string, code?: string) {
+  return prisma.project.create({
+    data: {
+      id,
+      organizationId: DEFAULT_ORG_ID,
+      folderId,
+      ...(code !== undefined ? { code } : {}),
+      name,
+      workspaceDir: `/tmp/${id}`,
+    },
+  });
+}
+
+function discover(query: string) {
+  return discoverBindableProjects({
+    prisma,
+    organizationId: DEFAULT_ORG_ID,
+    actorFeishuOpenId: "ou_owner",
+    isOrgAdmin: true,
+    query,
+  });
+}
@@ -249,19 +249,18 @@ describe("trigger full lifecycle (integration)", () => {
      projectWorkspaceRoot: await tempWorkspaceRoot(),
    });

-    await trigger(makeEvent("chat-unbound-card", "@_user_1 开始项目", "ou_onboard_card"), rt);
+    await trigger(makeEvent("chat-unbound-card", "@_user_1", "ou_onboard_card"), rt);

    expect(rt.sentCards).toHaveLength(1);
    expect(rt.sentTexts.at(-1)).toContain("这个飞书群还没有绑定项目");
    const values = cardActionValues(rt.sentCards[0]);
    expect(values).toEqual(expect.arrayContaining([
-      expect.objectContaining({
-        project_onboarding: expect.objectContaining({
+      {
+        project_onboarding: {
        action: "create_project_from_chat",
        organization_id: DEFAULT_ORG_ID,
-          folder_id: expect.any(String),
-        }),
-      }),
+        },
+      },
    ]));
    expect(runAgentCalls).toHaveLength(0);
  });
@@ -297,6 +296,34 @@ describe("trigger full lifecycle (integration)", () => {
      { principalType: "FEISHU_CHAT", principalId: "chat-onboard-create", role: "EDIT" },
    ]));
    expect(cardHeaderTitle(rt.sentPatches.at(-1))).toBe("已创建并绑定项目");
+    expect(JSON.stringify(rt.sentPatches.at(-1))).toContain("project_rename_form");
+  });
+
+  it("opens project management at any time and renames through a validated card form", async () => {
+    await seedProject("project-management", "chat-management", { role: "MANAGE" });
+    const trigger = makeTriggerHandler({ prisma, settings, logger: silentLogger, runAgent });
+
+    await trigger(makeEvent("chat-management", "@_user_1 /project"), rt);
+
+    expect(cardHeaderTitle(rt.sentCards.at(-1))).toBe("项目管理");
+    expect(JSON.stringify(rt.sentCards.at(-1))).toContain("project_rename_form");
+
+    await trigger.onCardAction(makeOnboardingEvent("chat-management", {
+      project_onboarding: {
+        action: "rename_project",
+        organization_id: DEFAULT_ORG_ID,
+        project_id: "project-management",
+      },
+    }, "ou_test_user", { project_name: "表面张力课程" }), rt);
+
+    await expect(prisma.project.findUniqueOrThrow({ where: { id: "project-management" } }))
+      .resolves.toMatchObject({ name: "表面张力课程" });
+    await expect(prisma.auditEntry.findFirstOrThrow({
+      where: { projectId: "project-management", action: "project.renamed" },
+    })).resolves.toMatchObject({
+      metadata: { oldName: "Test project-management", newName: "表面张力课程" },
+    });
+    expect(cardHeaderTitle(rt.sentPatches.at(-1))).toBe("项目名称已更新");
  });

  it("binds an existing manageable project from the unbound-chat onboarding card", async () => {
@@ -361,6 +388,40 @@ describe("trigger full lifecycle (integration)", () => {
    expect(cardHeaderTitle(rt.sentPatches.at(-1))).toBe("已绑定项目");
  });

+  it("rejects a forged bind card targeting a project in another organization", async () => {
+    await seedOnboardingUser("u-onboard-cross-org", "ou_onboard_cross_org", "MEMBER");
+    await seedTestOrganization("org-other-card", "other-card");
+    await prisma.project.create({
+      data: {
+        id: "project-other-card",
+        organizationId: "org-other-card",
+        name: "Other project",
+        workspaceDir: join(await tempWorkspaceRoot(), "project-other-card"),
+      },
+    });
+    await prisma.permissionGrant.create({
+      data: {
+        resourceType: "PROJECT",
+        resourceId: "project-other-card",
+        principalType: "USER",
+        principalId: "ou_onboard_cross_org",
+        role: "MANAGE",
+      },
+    });
+    const trigger = makeTriggerHandler({ prisma, settings, logger: silentLogger, runAgent });
+
+    await trigger.onCardAction(makeOnboardingEvent("chat-cross-org", {
+      project_onboarding: {
+        action: "bind_project",
+        organization_id: DEFAULT_ORG_ID,
+        project_id: "project-other-card",
+      },
+    }, "ou_onboard_cross_org"), rt);
+
+    await expect(prisma.projectGroupBinding.count({ where: { chatId: "chat-cross-org" } })).resolves.toBe(0);
+    expect(cardHeaderTitle(rt.sentPatches.at(-1))).toBe("绑定失败");
+  });
+
  it("uses unbound-chat mention text to search bindable projects", async () => {
    await seedOnboardingUser("u-onboard-search", "ou_onboard_search", "OWNER");
    const folder = await prisma.folder.create({
@@ -408,6 +469,98 @@ describe("trigger full lifecycle (integration)", () => {
    expect(runAgentCalls).toHaveLength(0);
  });

+  it("paginates every manageable search result through card actions", async () => {
+    await seedOnboardingUser("u-onboard-pages", "ou_onboard_pages", "OWNER");
+    const workspaceRoot = await tempWorkspaceRoot();
+    await prisma.project.createMany({
+      data: Array.from({ length: 9 }, (_, index) => ({
+        id: `project-page-${index}`,
+        organizationId: DEFAULT_ORG_ID,
+        name: `分页项目-${index}`,
+        workspaceDir: join(workspaceRoot, `project-page-${index}`),
+      })),
+    });
+    const trigger = makeTriggerHandler({
+      prisma,
+      settings,
+      logger: silentLogger,
+      runAgent,
+      projectWorkspaceRoot: workspaceRoot,
+    });
+
+    await trigger(makeEvent("chat-onboard-pages", "@_user_1 分页项目", "ou_onboard_pages"), rt);
+
+    const firstPageValues = cardActionValues(rt.sentCards[0]);
+    expect(firstPageValues.filter((value) => JSON.stringify(value).includes('"bind_project"'))).toHaveLength(8);
+    expect(firstPageValues).toContainEqual({
+      project_onboarding: {
+        action: "search_page",
+        organization_id: DEFAULT_ORG_ID,
+        search_query: "分页项目",
+        page: 2,
+      },
+    });
+
+    await trigger.onCardAction(makeOnboardingEvent("chat-onboard-pages", {
+      project_onboarding: {
+        action: "search_page",
+        organization_id: DEFAULT_ORG_ID,
+        search_query: "分页项目",
+        page: 2,
+      },
+    }, "ou_onboard_pages"), rt);
+
+    const secondPageValues = cardActionValues(rt.sentPatches.at(-1));
+    expect(secondPageValues.filter((value) => JSON.stringify(value).includes('"bind_project"'))).toHaveLength(1);
+    expect(JSON.stringify(rt.sentPatches.at(-1))).toContain("第 **2/2** 页");
+  });
+
+  it("navigates the preserved folder tree from the onboarding card", async () => {
+    await seedOnboardingUser("u-onboard-folders", "ou_onboard_folders", "OWNER");
+    const root = await prisma.folder.create({
+      data: { id: "folder-legacy-root", organizationId: DEFAULT_ORG_ID, name: "旧教学资产" },
+    });
+    await prisma.folder.create({
+      data: { id: "folder-physics-child", organizationId: DEFAULT_ORG_ID, parentId: root.id, name: "物理竞赛教研" },
+    });
+    const trigger = makeTriggerHandler({
+      prisma,
+      settings,
+      logger: silentLogger,
+      runAgent,
+      projectWorkspaceRoot: await tempWorkspaceRoot(),
+    });
+
+    await trigger(makeEvent("chat-onboard-folders", "@_user_1", "ou_onboard_folders"), rt);
+    expect(cardActionValues(rt.sentCards[0])).toContainEqual({
+      project_onboarding: {
+        action: "browse_folder",
+        organization_id: DEFAULT_ORG_ID,
+        folder_id: root.id,
+        page: 1,
+      },
+    });
+
+    await trigger.onCardAction(makeOnboardingEvent("chat-onboard-folders", {
+      project_onboarding: {
+        action: "browse_folder",
+        organization_id: DEFAULT_ORG_ID,
+        folder_id: root.id,
+        page: 1,
+      },
+    }, "ou_onboard_folders"), rt);
+
+    expect(JSON.stringify(rt.sentPatches.at(-1))).toContain("旧教学资产");
+    expect(cardActionValues(rt.sentPatches.at(-1))).toContainEqual({
+      project_onboarding: {
+        action: "browse_folder",
+        organization_id: DEFAULT_ORG_ID,
+        folder_id: "folder-physics-child",
+        page: 1,
+      },
+    });
+  });
+
  it("continues searching past unauthorized matches for a manageable project", async () => {
    await seedOnboardingUser("u-onboard-page", "ou_onboard_page", "MEMBER");
    const workspaceRoot = await tempWorkspaceRoot();
@@ -551,6 +704,7 @@ describe("trigger full lifecycle (integration)", () => {
    expect(helpText).toContain("可用 slash 命令");
    expect(helpText).toContain("/new");
    expect(helpText).toContain("/reset");
+    expect(helpText).toContain("/project");
    expect(helpText).toContain("/draft <需求>");
    expect(helpText).toContain("/review <需求>");
    expect(runAgentCalls).toHaveLength(0);
@@ -1632,10 +1786,15 @@ function makeInterruptEvent(chatId: string, runId: string, openId: string): Card
  };
 }

-function makeOnboardingEvent(chatId: string, value: unknown, openId: string): CardActionEvent {
+function makeOnboardingEvent(
+  chatId: string,
+  value: unknown,
+  openId: string,
+  formValue?: Readonly<Record<string, unknown>>,
+): CardActionEvent {
  return {
    operator: { open_id: openId },
-    action: { value, tag: "button" },
+    action: { value, tag: "button", ...(formValue !== undefined ? { form_value: formValue } : {}) },
    context: { open_chat_id: chatId, open_message_id: "card-message-1" },
  };
 }