feat: migrate legacy projects through binding search

hub/deploy/build_legacy_project_manifest.mjs

@@ -0,0 +1,56 @@
+#!/usr/bin/env node
+
+import { readdir, readFile, realpath } from "node:fs/promises";
+import { dirname, relative, resolve, sep } from "node:path";
+
+const rootArgument = process.argv[2];
+if (!rootArgument) throw new Error("usage: build_legacy_project_manifest.mjs <legacy-workspaces-root>");
+const root = await realpath(rootArgument);
+const projectFiles = await findProjectFiles(root);
+const seenIds = new Set();
+const manifest = [];
+for (const projectFile of projectFiles) {
+  const metadata = JSON.parse(await readFile(projectFile, "utf8"));
+  if (typeof metadata.id !== "string" || metadata.id.trim() === "") {
+    throw new Error(`project metadata has no id: ${projectFile}`);
+  }
+  if (seenIds.has(metadata.id)) throw new Error(`duplicate project id: ${metadata.id}`);
+  seenIds.add(metadata.id);
+  if (typeof metadata.name !== "string" || metadata.name.trim() === "") {
+    throw new Error(`project metadata has no name: ${projectFile}`);
+  }
+  const projectRoot = dirname(projectFile);
+  const sourceRelativePath = relative(root, projectRoot).split(sep).join("/");
+  const physicalFolderPath = dirname(sourceRelativePath) === "."
+    ? []
+    : dirname(sourceRelativePath).split("/");
+  if (metadata.folderPath !== undefined && (
+    !Array.isArray(metadata.folderPath)
+    || metadata.folderPath.some((part) => typeof part !== "string")
+    || JSON.stringify(metadata.folderPath) !== JSON.stringify(physicalFolderPath)
+  )) {
+    process.stderr.write(`[legacy-manifest] stale metadata folderPath; using physical path: ${projectFile}\n`);
+  }
+  manifest.push({
+    legacyId: metadata.id,
+    name: metadata.name,
+    folderPath: physicalFolderPath,
+    sourceRelativePath,
+  });
+}
+manifest.sort((left, right) => left.sourceRelativePath.localeCompare(right.sourceRelativePath, "zh-CN"));
+process.stdout.write(`${JSON.stringify(manifest, null, 2)}\n`);
+
+async function findProjectFiles(directory) {
+  const entries = await readdir(directory, { withFileTypes: true });
+  const projectMetadata = entries.find((entry) => entry.isFile() && entry.name === "project.json");
+  if (projectMetadata !== undefined) return [resolve(directory, projectMetadata.name)];
+  const found = [];
+  for (const entry of entries) {
+    if (entry.name === ".trash") continue;
+    const path = resolve(directory, entry.name);
+    if (entry.isSymbolicLink()) throw new Error(`legacy manifest rejects symbolic link: ${path}`);
+    if (entry.isDirectory()) found.push(...await findProjectFiles(path));
+  }
+  return found;
+}

hub/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@paradigm/hub",
-  "version": "0.0.20",
+  "version": "0.0.21",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@paradigm/hub",
-      "version": "0.0.20",
+      "version": "0.0.21",
       "dependencies": {
         "@anthropic-ai/claude-agent-sdk": "^0.3.202",
         "@fastify/cookie": "^11.0.2",

hub/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@paradigm/hub",
-  "version": "0.0.20",
+  "version": "0.0.21",
   "private": true,
   "type": "module",
   "engines": {

hub/src/deployment/legacy-project-import-cli.ts

@@ -0,0 +1,48 @@
+import { readFile } from "node:fs/promises";
+import { prisma } from "../db.js";
+import { importLegacyProjects, type LegacyProjectManifestEntry } from "./legacyProjectImport.js";
+import { readSiloOrganizationId } from "./silo.js";
+
+async function main(argv: readonly string[]): Promise<void> {
+  const options = parseOptions(argv);
+  const organizationId = readSiloOrganizationId();
+  const manifest = JSON.parse(await readFile(required(options, "manifest"), "utf8")) as unknown;
+  if (!Array.isArray(manifest)) throw new Error("legacy import manifest must be a JSON array");
+  const state = await importLegacyProjects({
+    prisma,
+    organizationId,
+    actorFeishuOpenId: required(options, "actor-open-id"),
+    workspaceRoot: required(options, "workspace-root"),
+    sourceRoot: required(options, "source-root"),
+    stateFile: required(options, "state-file"),
+    projects: manifest as LegacyProjectManifestEntry[],
+    onProgress: (message) => console.error(`[legacy-import] ${message}`),
+  });
+  console.log(JSON.stringify({ imported: Object.keys(state.projects).length }));
+}
+
+function parseOptions(args: readonly string[]): Map<string, string> {
+  const options = new Map<string, string>();
+  for (let index = 0; index < args.length; index += 2) {
+    const flag = args[index];
+    const value = args[index + 1];
+    if (flag === undefined || !flag.startsWith("--") || value === undefined) {
+      throw new Error(`expected --name value, got: ${args.slice(index).join(" ")}`);
+    }
+    options.set(flag.slice(2), value);
+  }
+  return options;
+}
+
+function required(options: ReadonlyMap<string, string>, name: string): string {
+  const value = options.get(name)?.trim();
+  if (!value) throw new Error(`--${name} is required`);
+  return value;
+}
+
+main(process.argv.slice(2))
+  .catch((error) => {
+    console.error(error instanceof Error ? error.message : String(error));
+    process.exitCode = 1;
+  })
+  .finally(async () => prisma.$disconnect());

hub/src/deployment/legacyProjectImport.ts

@@ -0,0 +1,369 @@
+import { createHash } from "node:crypto";
+import { cp, lstat, mkdir, readFile, readdir, realpath, rename, rm, writeFile } from "node:fs/promises";
+import { dirname, isAbsolute, join, relative, resolve, sep } from "node:path";
+import type { PrismaClient } from "@prisma/client";
+import { createFolder, createProjectFromOrgAdmin } from "../projectOnboarding.js";
+
+export interface LegacyProjectManifestEntry {
+  readonly legacyId: string;
+  readonly name: string;
+  readonly folderPath: readonly string[];
+  readonly sourceRelativePath: string;
+}
+
+export interface LegacyProjectImportState {
+  readonly version: 1;
+  readonly projects: Readonly<Record<string, {
+    readonly status: "PENDING" | "COMPLETED";
+    readonly projectId: string;
+    readonly workspaceDir: string;
+    readonly importedAt: string;
+    readonly sourceRelativePath: string;
+  }>>;
+}
+
+export async function importLegacyProjects(input: {
+  readonly prisma: PrismaClient;
+  readonly organizationId: string;
+  readonly actorFeishuOpenId: string;
+  readonly workspaceRoot: string;
+  readonly sourceRoot: string;
+  readonly stateFile: string;
+  readonly projects: readonly LegacyProjectManifestEntry[];
+  readonly onProgress?: (message: string) => void;
+}): Promise<LegacyProjectImportState> {
+  const sourceRoot = await realpath(input.sourceRoot);
+  const state = await readState(input.stateFile);
+  const projects = { ...state.projects };
+  const seen = new Set<string>();
+  for (const entry of input.projects) {
+    validateEntry(entry);
+    if (seen.has(entry.legacyId)) throw new Error(`duplicate legacy project id: ${entry.legacyId}`);
+    seen.add(entry.legacyId);
+    const sourceDir = await confinedSourceDir(sourceRoot, entry.sourceRelativePath);
+    const projectId = importedProjectId(input.organizationId, entry.legacyId);
+    const existing = await input.prisma.project.findUnique({ where: { id: projectId } });
+    const recorded = projects[entry.legacyId];
+    if (recorded !== undefined && (recorded.projectId !== projectId || recorded.sourceRelativePath !== entry.sourceRelativePath)) {
+      throw new Error(`legacy import state identity conflict: ${entry.legacyId}`);
+    }
+    if (recorded?.status === "COMPLETED" && existing === null) {
+      throw new Error(`legacy import state references missing project: ${entry.legacyId} -> ${recorded.projectId}`);
+    }
+    if (existing !== null) {
+      if (existing.organizationId !== input.organizationId || (recorded !== undefined && recorded.projectId !== existing.id)) {
+        throw new Error(`legacy import identity conflict: ${entry.legacyId} -> ${existing.id}`);
+      }
+      if (await hasCompletionMarker(existing.workspaceDir, entry)) {
+        await ensureImportAudit(input.prisma, existing.id, entry);
+        projects[entry.legacyId] = {
+          status: "COMPLETED",
+          projectId: existing.id,
+          workspaceDir: existing.workspaceDir,
+          importedAt: recorded?.importedAt || new Date().toISOString(),
+          sourceRelativePath: entry.sourceRelativePath,
+        };
+        await writeState(input.stateFile, { version: 1, projects });
+        input.onProgress?.(`skip ${entry.legacyId}: recovered completed import`);
+        continue;
+      }
+      if (recorded?.status !== "PENDING") {
+        throw new Error(`refusing to remove legacy project without a matching pending record: ${entry.legacyId}`);
+      }
+      input.onProgress?.(`recover ${entry.legacyId}: remove incomplete target`);
+      await removeIncompleteTarget(input.prisma, existing.id, existing.workspaceDir, input.workspaceRoot);
+    }
+    projects[entry.legacyId] = {
+      status: "PENDING",
+      projectId,
+      workspaceDir: "",
+      importedAt: "",
+      sourceRelativePath: entry.sourceRelativePath,
+    };
+    await writeState(input.stateFile, { version: 1, projects });
+    const folderId = await ensureFolderPath(input.prisma, input.organizationId, ["旧教学资产", ...entry.folderPath]);
+    input.onProgress?.(`import ${entry.legacyId}: ${entry.name}`);
+    const created = await createProjectFromOrgAdmin(input.prisma, {
+      organizationId: input.organizationId,
+      actorFeishuOpenId: input.actorFeishuOpenId,
+      name: entry.name,
+      workspaceRoot: input.workspaceRoot,
+      folderId,
+      projectId,
+    });
+    try {
+      await copyLegacyProject(sourceDir, created.workspaceDir, entry);
+    } catch (error) {
+      try {
+        await removeIncompleteTarget(input.prisma, created.projectId, created.workspaceDir, input.workspaceRoot);
+        delete projects[entry.legacyId];
+        await writeState(input.stateFile, { version: 1, projects });
+      } catch (cleanupError) {
+        throw new AggregateError(
+          [error, cleanupError],
+          `legacy project import and target cleanup failed: ${entry.legacyId}`,
+        );
+      }
+      throw new Error(`legacy project import failed: ${entry.legacyId}: ${errorMessage(error)}`, { cause: error });
+    }
+    await ensureImportAudit(input.prisma, created.projectId, entry);
+    projects[entry.legacyId] = {
+      status: "COMPLETED",
+      projectId: created.projectId,
+      workspaceDir: created.workspaceDir,
+      importedAt: new Date().toISOString(),
+      sourceRelativePath: entry.sourceRelativePath,
+    };
+    await writeState(input.stateFile, { version: 1, projects });
+  }
+  return { version: 1, projects };
+}
+
+async function ensureFolderPath(
+  prisma: PrismaClient,
+  organizationId: string,
+  parts: readonly string[],
+): Promise<string> {
+  let parentId: string | undefined;
+  for (const name of parts) {
+    const existing = await prisma.folder.findFirst({
+      where: { organizationId, parentId: parentId ?? null, name, archivedAt: null },
+      select: { id: true },
+    });
+    if (existing !== null) {
+      parentId = existing.id;
+      continue;
+    }
+    const created = await createFolder(prisma, {
+      organizationId,
+      name,
+      ...(parentId !== undefined ? { parentId } : {}),
+    });
+    parentId = created.id;
+  }
+  if (parentId === undefined) throw new Error("legacy import folder path is empty");
+  return parentId;
+}
+
+async function copyLegacyProject(
+  sourceDir: string,
+  workspaceDir: string,
+  entry: LegacyProjectManifestEntry,
+): Promise<void> {
+  const sourceWorkspace = join(sourceDir, "workspace");
+  await assertNoSymlinks(sourceWorkspace);
+  const names = await readdir(sourceWorkspace);
+  for (const name of names) {
+    if (name === ".claude" || name === ".cph") continue;
+    await cp(join(sourceWorkspace, name), join(workspaceDir, name), {
+      recursive: true,
+      force: false,
+      errorOnExist: true,
+      preserveTimestamps: true,
+      filter: (source) => {
+        const parts = relative(sourceWorkspace, source).split(sep);
+        return !parts.includes(".claude") && !parts.includes(".cph");
+      },
+    });
+  }
+  const legacyDir = join(workspaceDir, ".legacy-source");
+  await mkdir(legacyDir, { mode: 0o750 });
+  await cp(join(sourceDir, "project.json"), join(legacyDir, "project.json"), {
+    force: false,
+    errorOnExist: true,
+    preserveTimestamps: true,
+  });
+  const rawDir = join(sourceDir, "_raw");
+  await assertNoSymlinks(rawDir).catch((error: unknown) => {
+    if (isMissing(error)) return;
+    throw error;
+  });
+  await cp(rawDir, join(legacyDir, "raw"), {
+    recursive: true,
+    force: false,
+    errorOnExist: true,
+    preserveTimestamps: true,
+  }).catch((error: unknown) => {
+    if (isMissing(error)) return;
+    throw error;
+  });
+  await writeFile(join(legacyDir, "migration.json"), `${JSON.stringify({
+    source: "teaching-material-host-service",
+    legacyProjectId: entry.legacyId,
+    legacyPath: entry.sourceRelativePath,
+    migratedAt: new Date().toISOString(),
+  }, null, 2)}\n`, { mode: 0o640 });
+}
+
+function importedProjectId(organizationId: string, legacyId: string): string {
+  const digest = createHash("sha256")
+    .update("teaching-material-host-service\0")
+    .update(organizationId)
+    .update("\0")
+    .update(legacyId)
+    .digest("hex")
+    .slice(0, 32);
+  return `legacy_${digest}`;
+}
+
+async function hasCompletionMarker(
+  workspaceDir: string,
+  entry: LegacyProjectManifestEntry,
+): Promise<boolean> {
+  try {
+    const marker = JSON.parse(await readFile(join(workspaceDir, ".legacy-source", "migration.json"), "utf8")) as unknown;
+    return typeof marker === "object" && marker !== null
+      && "legacyProjectId" in marker && marker.legacyProjectId === entry.legacyId
+      && "legacyPath" in marker && marker.legacyPath === entry.sourceRelativePath;
+  } catch (error) {
+    if (isMissing(error)) return false;
+    if (error instanceof SyntaxError) {
+      throw new Error(`invalid legacy completion marker: ${workspaceDir}`, { cause: error });
+    }
+    throw error;
+  }
+}
+
+async function ensureImportAudit(
+  prisma: PrismaClient,
+  projectId: string,
+  entry: LegacyProjectManifestEntry,
+): Promise<void> {
+  const existing = await prisma.auditEntry.findFirst({
+    where: { projectId, action: "legacy_project.imported" },
+    select: { id: true },
+  });
+  if (existing !== null) return;
+  await prisma.auditEntry.create({
+    data: {
+      projectId,
+      action: "legacy_project.imported",
+      metadata: {
+        source: "teaching-material-host-service",
+        legacyProjectId: entry.legacyId,
+        legacyPath: entry.sourceRelativePath,
+      },
+    },
+  });
+}
+
+async function removeIncompleteTarget(
+  prisma: PrismaClient,
+  projectId: string,
+  workspaceDir: string,
+  workspaceRoot: string,
+): Promise<void> {
+  await assertConfinedExistingPath(workspaceRoot, workspaceDir);
+  const failures: unknown[] = [];
+  try {
+    await prisma.project.delete({ where: { id: projectId } });
+  } catch (error) {
+    failures.push(error);
+  }
+  try {
+    await rm(workspaceDir, { recursive: true, force: true });
+  } catch (error) {
+    failures.push(error);
+  }
+  if (failures.length > 0) throw new AggregateError(failures, `failed to remove incomplete legacy target: ${projectId}`);
+}
+
+async function assertConfinedExistingPath(root: string, path: string): Promise<void> {
+  const trustedRoot = await realpath(root);
+  const candidate = await realpath(path);
+  const rel = relative(trustedRoot, candidate);
+  if (rel === "" || rel === ".." || rel.startsWith("../") || isAbsolute(rel)) {
+    throw new Error(`refusing to remove path outside workspace root: ${path}`);
+  }
+}
+
+async function assertNoSymlinks(path: string): Promise<void> {
+  const metadata = await lstat(path);
+  if (metadata.isSymbolicLink()) throw new Error(`legacy import rejects symbolic link: ${path}`);
+  if (!metadata.isDirectory()) return;
+  for (const entry of await readdir(path)) await assertNoSymlinks(join(path, entry));
+}
+
+async function confinedSourceDir(sourceRoot: string, relativePath: string): Promise<string> {
+  const candidate = await realpath(resolve(sourceRoot, relativePath));
+  const rel = relative(sourceRoot, candidate);
+  if (rel === "" || rel === ".." || rel.startsWith("../") || isAbsolute(rel)) {
+    throw new Error(`legacy source path escapes source root: ${relativePath}`);
+  }
+  return candidate;
+}
+
+function validateEntry(entry: LegacyProjectManifestEntry): void {
+  if (typeof entry !== "object" || entry === null) throw new Error("invalid legacy project entry");
+  if (typeof entry.legacyId !== "string") throw new Error("legacy project id must be a string");
+  if (!/^[A-Za-z0-9_-]+$/.test(entry.legacyId)) throw new Error(`invalid legacy project id: ${entry.legacyId}`);
+  if (typeof entry.name !== "string") throw new Error(`legacy project name must be a string: ${entry.legacyId}`);
+  if (entry.name.trim() === "") throw new Error(`legacy project name is empty: ${entry.legacyId}`);
+  if (typeof entry.sourceRelativePath !== "string") {
+    throw new Error(`legacy source path must be a string: ${entry.legacyId}`);
+  }
+  if (entry.sourceRelativePath === "" || resolve("/", entry.sourceRelativePath) === "/") {
+    throw new Error(`invalid legacy source path: ${entry.legacyId}`);
+  }
+  if (!Array.isArray(entry.folderPath)) throw new Error(`legacy folder path must be an array: ${entry.legacyId}`);
+  for (const part of entry.folderPath) {
+    if (typeof part !== "string" || part.trim() === "" || part === "." || part === ".." || part.includes("/") || part.includes("\\")) {
+      throw new Error(`invalid legacy folder part for ${entry.legacyId}: ${part}`);
+    }
+  }
+}
+
+async function readState(path: string): Promise<LegacyProjectImportState> {
+  try {
+    const parsed = JSON.parse(await readFile(path, "utf8")) as LegacyProjectImportState;
+    if (parsed.version !== 1 || typeof parsed.projects !== "object" || parsed.projects === null) {
+      throw new Error(`invalid legacy import state: ${path}`);
+    }
+    for (const [legacyId, record] of Object.entries(parsed.projects)) validateStateRecord(path, legacyId, record);
+    return parsed;
+  } catch (error) {
+    if (isMissing(error)) return { version: 1, projects: {} };
+    throw error;
+  }
+}
+
+function validateStateRecord(path: string, legacyId: string, record: unknown): void {
+  if (typeof record !== "object" || record === null || Array.isArray(record)) {
+    throw new Error(`invalid legacy import state record: ${path}#${legacyId}`);
+  }
+  const values = record as Record<string, unknown>;
+  const expectedKeys = ["importedAt", "projectId", "sourceRelativePath", "status", "workspaceDir"];
+  if (Object.keys(values).sort().join("\0") !== expectedKeys.join("\0")) {
+    throw new Error(`invalid legacy import state fields: ${path}#${legacyId}`);
+  }
+  if (values.status !== "PENDING" && values.status !== "COMPLETED") {
+    throw new Error(`invalid legacy import state status: ${path}#${legacyId}`);
+  }
+  for (const field of ["projectId", "workspaceDir", "importedAt", "sourceRelativePath"] as const) {
+    if (typeof values[field] !== "string") throw new Error(`invalid legacy import state ${field}: ${path}#${legacyId}`);
+  }
+  if (values.projectId === "" || values.sourceRelativePath === "") {
+    throw new Error(`invalid legacy import state identity: ${path}#${legacyId}`);
+  }
+  if (values.status === "PENDING" && (values.workspaceDir !== "" || values.importedAt !== "")) {
+    throw new Error(`invalid pending legacy import state: ${path}#${legacyId}`);
+  }
+  if (values.status === "COMPLETED" && (values.workspaceDir === "" || values.importedAt === "")) {
+    throw new Error(`invalid completed legacy import state: ${path}#${legacyId}`);
+  }
+}
+
+async function writeState(path: string, state: LegacyProjectImportState): Promise<void> {
+  await mkdir(dirname(path), { recursive: true, mode: 0o750 });
+  const temporary = `${path}.tmp`;
+  await writeFile(temporary, `${JSON.stringify(state, null, 2)}\n`, { mode: 0o600 });
+  await rename(temporary, path);
+}
+
+function isMissing(error: unknown): boolean {
+  return typeof error === "object" && error !== null && "code" in error && error.code === "ENOENT";
+}
+
+function errorMessage(error: unknown): string {
+  return error instanceof Error ? error.message : String(error);
+}

hub/src/feishu/projectOnboardingCard.ts

@@ -22,6 +22,7 @@ export function buildUnboundChatOnboardingCard(params: {
   readonly folders: readonly OnboardingFolderOption[];
   readonly projects: readonly OnboardingProjectOption[];
   readonly canCreateProject: boolean;
+  readonly searchQuery?: string | undefined;
 }): Record<string, unknown> {
   const actions: unknown[] = [];
   if (params.canCreateProject) {
@@ -64,7 +65,14 @@ export function buildUnboundChatOnboardingCard(params: {
         `这个飞书群还没有绑定项目。`,
         ``,
         `组织: **${escapeMarkdown(params.organizationName)}**`,
-        `可以选择 folder 新建项目并绑定到本群，或绑定你已经有管理权限的未绑定项目。`,
+        ...(params.searchQuery === undefined || params.searchQuery === ""
+          ? [`可以选择 folder 新建项目并绑定到本群，或绑定你已经有管理权限的未绑定项目。`]
+          : [
+              `项目搜索: **${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"),
     },
   ];

hub/src/feishu/trigger.ts

@@ -1070,10 +1070,12 @@ 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({
       organizationId: organization.organizationId,
       actorFeishuOpenId: senderOpenId,
       isOrgAdmin: isOrgAdminRole(organization.role),
+      searchQuery,
     });
     const folders = await listCreatableRootFolders(organization.organizationId);
 
@@ -1086,6 +1088,7 @@ export function makeTriggerHandler(deps: TriggerDeps): TriggerHandler {
         folders,
         projects,
         canCreateProject,
+        searchQuery,
       }),
       sendOptionsForTriggerMessage(msg),
     );
@@ -1182,22 +1185,32 @@ export function makeTriggerHandler(deps: TriggerDeps): TriggerHandler {
     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: {
         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" } } },
+          ],
+        }),
         },
         select: {
           id: true,
           name: true,
           folder: { select: { name: true } },
         },
-      orderBy: { updatedAt: "desc" },
+        orderBy: [{ updatedAt: "desc" }, { id: "desc" }],
         take: 20,
+        ...(cursor === undefined ? {} : { cursor: { id: cursor }, skip: 1 }),
       });
-    const allowed: OnboardingProjectOption[] = [];
       for (const project of candidates) {
         if (!input.isOrgAdmin) {
           const decision = await authorizer.can({
@@ -1214,6 +1227,10 @@ export function makeTriggerHandler(deps: TriggerDeps): TriggerHandler {
         });
         if (allowed.length >= 5) break;
       }
+      if (candidates.length < 20) break;
+      cursor = candidates.at(-1)?.id;
+      if (cursor === undefined) break;
+    }
     return allowed;
   }
 

hub/src/projectOnboarding.ts

@@ -27,6 +27,8 @@ export interface CreateOrgAdminProjectInput {
   readonly workspaceRoot: string;
   readonly folderId?: string | undefined;
   readonly sortKey?: string | undefined;
+  /** Stable internal identifier for resumable imports; ordinary callers must omit it. */
+  readonly projectId?: string | undefined;
 }
 
 export interface CreateFeishuChatProjectInput {
@@ -147,6 +149,7 @@ export async function createProjectFromOrgAdmin(
     workspaceRoot: input.workspaceRoot,
     folderId: input.folderId,
     sortKey: input.sortKey,
+    projectId: input.projectId,
     chatId: undefined,
   });
 }
@@ -291,6 +294,7 @@ async function createManagedProject(
     readonly workspaceRoot: string;
     readonly folderId: string | undefined;
     readonly sortKey?: string | undefined;
+    readonly projectId?: string | undefined;
     readonly chatId: string | undefined;
   },
 ): Promise<ProjectOnboardingResult> {
@@ -301,7 +305,7 @@ async function createManagedProject(
   if (organization === null) throw new Error(`organization not found: ${input.organizationId}`);
   requireActiveOrganizationStatus(organization.id, organization.status);
 
-  const projectId = createProjectId();
+  const projectId = input.projectId ?? createProjectId();
   const workspaceDir = projectWorkspaceDir({
     workspaceRoot: input.workspaceRoot,
     organizationSlug: organization.slug,

hub/test/integration/legacy-project-import.test.ts

@@ -0,0 +1,185 @@
+import { mkdir, mkdtemp, readFile, rm, symlink, unlink, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { afterAll, afterEach, beforeEach, describe, expect, it } from "vitest";
+import { importLegacyProjects } from "../../src/deployment/legacyProjectImport.js";
+import { DEFAULT_ORG_ID, prisma, resetDb } from "./helpers.js";
+
+const temporaryRoots: string[] = [];
+
+describe("legacy teaching-material project import", () => {
+  beforeEach(async () => {
+    await resetDb();
+    await prisma.user.create({
+      data: {
+        id: "legacy-import-owner",
+        feishuOpenId: "ou_legacy_owner",
+        displayName: "Legacy Import Owner",
+        organizationMemberships: { create: { organizationId: DEFAULT_ORG_ID, role: "OWNER" } },
+      },
+    });
+  });
+
+  afterEach(async () => {
+    while (temporaryRoots.length > 0) {
+      const root = temporaryRoots.pop();
+      if (root !== undefined) await rm(root, { recursive: true, force: true });
+    }
+  });
+
+  afterAll(async () => prisma.$disconnect());
+
+  it("imports each legacy project as an unbound resumable project under its old folder path", async () => {
+    const sourceRoot = await temporaryRoot("cph-legacy-source-");
+    const workspaceRoot = await temporaryRoot("cph-legacy-target-");
+    const projectSource = join(sourceRoot, "物理", "M-243-牛顿力学");
+    await mkdir(join(projectSource, "workspace", "chapters"), { recursive: true });
+    await mkdir(join(projectSource, "workspace", ".claude"), { recursive: true });
+    await mkdir(join(projectSource, "workspace", "chapters", ".cph"), { recursive: true });
+    await mkdir(join(projectSource, "_raw"), { recursive: true });
+    await writeFile(join(projectSource, "workspace", "project.toml"), "title = \"牛顿力学\"\n");
+    await writeFile(join(projectSource, "workspace", "chapters", "lesson.typ"), "= 牛顿第二定律\n");
+    await writeFile(join(projectSource, "workspace", ".claude", "session.json"), "{}\n");
+    await writeFile(join(projectSource, "workspace", "chapters", ".cph", "runtime.json"), "{}\n");
+    await writeFile(join(projectSource, "project.json"), "{\"id\":\"M-243\"}\n");
+    await writeFile(join(projectSource, "_raw", "source.txt"), "legacy source\n");
+    const stateFile = join(workspaceRoot, "migration-state", "state.json");
+    const manifest = [{
+      legacyId: "M-243",
+      name: "牛顿力学",
+      folderPath: ["物理"],
+      sourceRelativePath: "物理/M-243-牛顿力学",
+    }];
+
+    const first = await importLegacyProjects({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_legacy_owner",
+      workspaceRoot,
+      sourceRoot,
+      stateFile,
+      projects: manifest,
+    });
+    const imported = first.projects["M-243"];
+    expect(imported).toBeDefined();
+    if (imported === undefined) throw new Error("missing imported project state");
+
+    const project = await prisma.project.findUniqueOrThrow({
+      where: { id: imported.projectId },
+      include: { folder: { include: { parent: true } }, groupBindings: true },
+    });
+    expect(project.name).toBe("牛顿力学");
+    expect(project.folder?.name).toBe("物理");
+    expect(project.folder?.parent?.name).toBe("旧教学资产");
+    expect(project.groupBindings).toEqual([]);
+    await expect(readFile(join(imported.workspaceDir, "chapters", "lesson.typ"), "utf8"))
+      .resolves.toBe("= 牛顿第二定律\n");
+    await expect(readFile(join(imported.workspaceDir, ".claude", "session.json"), "utf8"))
+      .rejects.toMatchObject({ code: "ENOENT" });
+    await expect(readFile(join(imported.workspaceDir, "chapters", ".cph", "runtime.json"), "utf8"))
+      .rejects.toMatchObject({ code: "ENOENT" });
+    await expect(readFile(join(imported.workspaceDir, ".legacy-source", "project.json"), "utf8"))
+      .resolves.toContain("M-243");
+    await expect(readFile(join(imported.workspaceDir, ".legacy-source", "raw", "source.txt"), "utf8"))
+      .resolves.toBe("legacy source\n");
+
+    await unlink(stateFile);
+    const second = await importLegacyProjects({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_legacy_owner",
+      workspaceRoot,
+      sourceRoot,
+      stateFile,
+      projects: manifest,
+    });
+    expect(second.projects["M-243"]?.projectId).toBe(imported.projectId);
+    await expect(prisma.project.count({ where: { organizationId: DEFAULT_ORG_ID } })).resolves.toBe(1);
+    expect(JSON.parse(await readFile(stateFile, "utf8"))).toMatchObject({
+      version: 1,
+      projects: { "M-243": { projectId: imported.projectId } },
+    });
+    await expect(prisma.auditEntry.count({
+      where: { projectId: imported.projectId, action: "legacy_project.imported" },
+    })).resolves.toBe(1);
+
+    await writeFile(join(imported.workspaceDir, ".legacy-source", "migration.json"), "not json\n");
+    await expect(importLegacyProjects({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_legacy_owner",
+      workspaceRoot,
+      sourceRoot,
+      stateFile,
+      projects: manifest,
+    })).rejects.toThrow(/invalid legacy completion marker/);
+    await expect(prisma.project.count({ where: { id: imported.projectId } })).resolves.toBe(1);
+  });
+
+  it("rejects symlinks instead of importing paths outside the staged project", async () => {
+    const sourceRoot = await temporaryRoot("cph-legacy-symlink-");
+    const workspaceRoot = await temporaryRoot("cph-legacy-target-");
+    const projectSource = join(sourceRoot, "legacy");
+    await mkdir(join(projectSource, "workspace"), { recursive: true });
+    await writeFile(join(projectSource, "project.json"), "{}\n");
+    await symlink("/etc/passwd", join(projectSource, "workspace", "outside"));
+
+    await expect(importLegacyProjects({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_legacy_owner",
+      workspaceRoot,
+      sourceRoot,
+      stateFile: join(workspaceRoot, "state.json"),
+      projects: [{ legacyId: "symlink", name: "Symlink", folderPath: [], sourceRelativePath: "legacy" }],
+    })).rejects.toThrow(/rejects symbolic link/);
+    await expect(prisma.project.count()).resolves.toBe(0);
+  });
+
+  it("rejects a manifest path that escapes the staged source root", async () => {
+    const parent = await temporaryRoot("cph-legacy-escape-");
+    const sourceRoot = join(parent, "source");
+    const outside = join(parent, "outside");
+    await mkdir(sourceRoot);
+    await mkdir(outside);
+
+    await expect(importLegacyProjects({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_legacy_owner",
+      workspaceRoot: await temporaryRoot("cph-legacy-target-"),
+      sourceRoot,
+      stateFile: join(parent, "state.json"),
+      projects: [{
+        legacyId: "escape",
+        name: "Escape",
+        folderPath: [],
+        sourceRelativePath: "../outside",
+      }],
+    })).rejects.toThrow(/escapes source root/);
+  });
+
+  it("rejects malformed resume state before creating a project", async () => {
+    const sourceRoot = await temporaryRoot("cph-legacy-state-source-");
+    const workspaceRoot = await temporaryRoot("cph-legacy-state-target-");
+    const stateFile = join(workspaceRoot, "state.json");
+    await writeFile(stateFile, JSON.stringify({ version: 1, projects: { broken: { status: "MAYBE" } } }));
+
+    await expect(importLegacyProjects({
+      prisma,
+      organizationId: DEFAULT_ORG_ID,
+      actorFeishuOpenId: "ou_legacy_owner",
+      workspaceRoot,
+      sourceRoot,
+      stateFile,
+      projects: [],
+    })).rejects.toThrow(/invalid legacy import state fields/);
+    await expect(prisma.project.count()).resolves.toBe(0);
+  });
+});
+
+async function temporaryRoot(prefix: string): Promise<string> {
+  const root = await mkdtemp(join(tmpdir(), prefix));
+  temporaryRoots.push(root);
+  return root;
+}

hub/test/integration/trigger.test.ts

@@ -361,6 +361,100 @@ describe("trigger full lifecycle (integration)", () => {
     expect(cardHeaderTitle(rt.sentPatches.at(-1))).toBe("已绑定项目");
   });
 
+  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({
+      data: { organizationId: DEFAULT_ORG_ID, name: "物理竞赛" },
+    });
+    await prisma.project.createMany({
+      data: [
+        {
+          id: "p-search-newton",
+          organizationId: DEFAULT_ORG_ID,
+          folderId: folder.id,
+          name: "牛顿力学专题",
+          workspaceDir: join(await tempWorkspaceRoot(), "p-search-newton"),
+        },
+        {
+          id: "p-search-optics",
+          organizationId: DEFAULT_ORG_ID,
+          folderId: folder.id,
+          name: "几何光学专题",
+          workspaceDir: join(await tempWorkspaceRoot(), "p-search-optics"),
+        },
+      ],
+    });
+    const trigger = makeTriggerHandler({
+      prisma,
+      settings,
+      logger: silentLogger,
+      runAgent,
+      projectWorkspaceRoot: await tempWorkspaceRoot(),
+    });
+
+    await trigger(makeEvent("chat-onboard-search", "@_user_1 牛顿", "ou_onboard_search"), rt);
+
+    expect(cardActionValues(rt.sentCards[0])).toContainEqual({
+      project_onboarding: {
+        action: "bind_project",
+        organization_id: DEFAULT_ORG_ID,
+        project_id: "p-search-newton",
+      },
+    });
+    expect(cardActionValues(rt.sentCards[0])).not.toContainEqual(expect.objectContaining({
+      project_onboarding: expect.objectContaining({ project_id: "p-search-optics" }),
+    }));
+    expect(JSON.stringify(rt.sentCards[0])).toContain("牛顿");
+    expect(runAgentCalls).toHaveLength(0);
+  });
+
+  it("continues searching past unauthorized matches for a manageable project", async () => {
+    await seedOnboardingUser("u-onboard-page", "ou_onboard_page", "MEMBER");
+    const workspaceRoot = await tempWorkspaceRoot();
+    await prisma.project.createMany({
+      data: [
+        ...Array.from({ length: 20 }, (_, index) => ({
+          id: `z-search-denied-${String(index).padStart(2, "0")}`,
+          organizationId: DEFAULT_ORG_ID,
+          name: `迁移项目 ${index}`,
+          workspaceDir: join(workspaceRoot, `denied-${index}`),
+        })),
+        {
+          id: "a-search-allowed",
+          organizationId: DEFAULT_ORG_ID,
+          name: "迁移项目 可管理",
+          workspaceDir: join(workspaceRoot, "allowed"),
+        },
+      ],
+    });
+    await prisma.permissionGrant.create({
+      data: {
+        resourceType: "PROJECT",
+        resourceId: "a-search-allowed",
+        principalType: "USER",
+        principalId: "ou_onboard_page",
+        role: "MANAGE",
+      },
+    });
+    const trigger = makeTriggerHandler({
+      prisma,
+      settings,
+      logger: silentLogger,
+      runAgent,
+      projectWorkspaceRoot: workspaceRoot,
+    });
+
+    await trigger(makeEvent("chat-onboard-page", "@_user_1 迁移", "ou_onboard_page"), rt);
+
+    expect(cardActionValues(rt.sentCards[0])).toContainEqual({
+      project_onboarding: {
+        action: "bind_project",
+        organization_id: DEFAULT_ORG_ID,
+        project_id: "a-search-allowed",
+      },
+    });
+  });
+
   it("batches quick text messages from the same chat and sender into one run", async () => {
     await seedProject("proj-1b", "chat-1b");
     const trigger = makeTriggerHandler({

hub/test/unit/legacy-project-manifest.test.ts

@@ -0,0 +1,61 @@
+import { execFile } from "node:child_process";
+import { mkdir, mkdtemp, rm, symlink, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join, resolve } from "node:path";
+import { promisify } from "node:util";
+import { afterEach, describe, expect, it } from "vitest";
+
+const execute = promisify(execFile);
+const temporaryRoots: string[] = [];
+
+describe("legacy project manifest builder", () => {
+  afterEach(async () => {
+    while (temporaryRoots.length > 0) {
+      const root = temporaryRoots.pop();
+      if (root !== undefined) await rm(root, { recursive: true, force: true });
+    }
+  });
+
+  it("stops at a project root and excludes trash projects", async () => {
+    const root = await mkdtemp(join(tmpdir(), "cph-legacy-manifest-"));
+    temporaryRoots.push(root);
+    const projectRoot = join(root, "物理", "legacy__牛顿力学");
+    await mkdir(join(projectRoot, "workspace", "nested"), { recursive: true });
+    await mkdir(join(projectRoot, "_raw"), { recursive: true });
+    await mkdir(join(root, ".trash", "deleted"), { recursive: true });
+    await writeFile(join(projectRoot, "project.json"), JSON.stringify({
+      id: "legacy",
+      name: "牛顿力学",
+      folderPath: ["物理"],
+    }));
+    await writeFile(join(projectRoot, "workspace", "nested", "project.json"), "not metadata");
+    await writeFile(join(projectRoot, "_raw", "project.json"), "not metadata");
+    await writeFile(join(root, ".trash", "deleted", "project.json"), JSON.stringify({
+      id: "deleted",
+      name: "Deleted",
+    }));
+
+    const { stdout } = await execute(process.execPath, [
+      resolve("deploy/build_legacy_project_manifest.mjs"),
+      root,
+    ]);
+
+    expect(JSON.parse(stdout)).toEqual([{
+      legacyId: "legacy",
+      name: "牛顿力学",
+      folderPath: ["物理"],
+      sourceRelativePath: "物理/legacy__牛顿力学",
+    }]);
+  });
+
+  it("rejects symlinked entries instead of silently omitting them", async () => {
+    const root = await mkdtemp(join(tmpdir(), "cph-legacy-manifest-link-"));
+    temporaryRoots.push(root);
+    await symlink("/tmp", join(root, "linked-project"));
+
+    await expect(execute(process.execPath, [
+      resolve("deploy/build_legacy_project_manifest.mjs"),
+      root,
+    ])).rejects.toMatchObject({ stderr: expect.stringContaining("rejects symbolic link") });
+  });
+});