fix(filelib): 恢复保留原名,撞名报清晰错误而非自动加后缀(ADR-0035,supersede ADR-0033)

恢复不再改名;同名兄弟占位时抛 409 name_conflict_on_restore + 人话提示,
操作者自行重命名现有节点或彻底删除旧节点后再恢复。

hub/src/database/filelib/binService.ts

@@ -11,7 +11,7 @@
  */
 
 import type { PrismaClient } from "@prisma/client";
-import { FileLibError, nameKey, NODE_NAME_MAX_LENGTH } from "./model.js";
+import { FileLibError, nameKey } from "./model.js";
 import { FILE_LIB_AUDIT_ACTIONS, writeFileLibAudit } from "./audit.js";
 import type { GroupResolver } from "./groupResolver.js";
 import type { FileLibActor } from "./treeService.js";
@@ -113,7 +113,6 @@ async function requireBinEntry(
 
 export interface RestoreResult {
   readonly name: string;
-  readonly renamedFrom?: string | undefined;
 }
 
 /**
@@ -126,33 +125,21 @@ export async function restoreBinEntry(deps: BinDeps, actor: FileLibActor, nodeId
   return deps.prisma.$transaction(async (tx) => {
     const node = await requireBinEntry(tx as PrismaClient, deps, actor, groupIds, nodeId);
 
-    const siblings = await tx.fileLibNode.findMany({
+    const clash = await tx.fileLibNode.findFirst({
       where: {
         organizationId: deps.organizationId,
         parentId: node.parentId,
         deletedAt: null,
         id: { not: node.id },
+        nameLower: nameKey(node.name),
       },
-      select: { nameLower: true },
+      select: { id: true },
     });
-    const taken = new Set(siblings.map((s) => s.nameLower));
-
-    let name = node.name;
-    let renamedFrom: string | undefined;
-    if (taken.has(nameKey(name))) {
-      renamedFrom = node.name;
-      let n = 1;
-      do {
-        const suffix = n === 1 ? "(已恢复)" : `(已恢复 ${n})`;
-        name = node.name.slice(0, NODE_NAME_MAX_LENGTH - suffix.length) + suffix;
-        n += 1;
-      } while (taken.has(nameKey(name)));
+    if (clash !== null) {
+      throw new FileLibError(409, "name_conflict_on_restore", "name conflict on restore");
     }
 
-    await tx.fileLibNode.update({
-      where: { id: node.id },
-      data: { deletedAt: null, name, nameLower: nameKey(name) },
-    });
+    await tx.fileLibNode.update({ where: { id: node.id }, data: { deletedAt: null } });
     await writeFileLibAudit(tx, {
       action: node.kind === "PROJECT"
         ? FILE_LIB_AUDIT_ACTIONS.projectRestore
@@ -162,9 +149,9 @@ export async function restoreBinEntry(deps: BinDeps, actor: FileLibActor, nodeId
       objectType: node.kind === "PROJECT" ? "project" : "folder",
       objectId: node.id,
       objectPath: node.pathIds,
-      detail: { name, ...(renamedFrom !== undefined ? { renamedFrom } : {}) },
+      detail: { name: node.name },
     });
-    return { name, renamedFrom };
+    return { name: node.name };
   });
 }