feat: 任务模型物理合并，发布+回收并为单任务双阶段

- tasks 新增 recovery_enabled/recovery_due_at/recovery_instructions/recovery_example_images，回收挂自己名下（先发布后交截图），不再置 complete
- 存量 screenshot_collect 迁移并入父任务后删除（mysql/0020 含 DELETE，生产执行前务必备份）
- 新 action task_enable_recovery：ghost 面板一键开通回收，截止默认=发布截止
- 企微催办双阶段（待发布/截图待提交）；超期自动释放仅发布阶段
- admin 删 groupTaskMasters 聚合改单卡双面板；portal 详情页回收截图区块+批次回收进度
- 测试 309 全绿 + Playwright E2E 20/20

lib/project-service.ts

@@ -17,7 +17,6 @@ export type ProjectRow = {
   main_group_member_ids: string;
   owner_userid: string;
   main_chat_id: string;
-  parent_id: string;
   status: string;
   note: string;
   created_at: string;
@@ -33,7 +32,6 @@ export type ProjectSummary = {
   mainGroupMemberIds: string[];
   ownerUserid: string;
   mainChatId: string;
-  parentProjectId: string;
   taskCount: number;
 };
 
@@ -51,16 +49,9 @@ export type ProjectTaskRow = {
   share_token: string | null;
   owner_userid: string;
   task_chat_id: string;
-  project_name?: string;
-};
-
-export type ProjectSubproject = {
-  id: string;
-  name: string;
-  brand: string;
-  ownerUserid: string;
-  mainChatId: string;
-  taskCount: number;
+  recovery_enabled: number;
+  recovery_due_at: string;
+  recovery_submitted: number;
 };
 
 export type ProjectMainChat = {
@@ -72,8 +63,6 @@ export type ProjectDetail = {
   project: ProjectSummary;
   tasks: ProjectTaskRow[];
   mainChat: ProjectMainChat;
-  subprojects: ProjectSubproject[];
-  pushTasks: ProjectTaskRow[];
 };
 
 export type MainChatEnsureReason =
@@ -238,59 +227,6 @@ export async function ensureProjectMainChat(
   }
 }
 
-async function loadProjectParents(
-  db: DatabaseClient,
-): Promise<Map<string, string>> {
-  const result = await db
-    .prepare("SELECT id, parent_id FROM projects")
-    .all<{ id: string; parent_id: string }>();
-  return new Map(result.results.map((row) => [row.id, text(row.parent_id)]));
-}
-
-// candidate 是否位于 ancestor 的子孙链上（沿 candidate 的祖先链向上找 ancestor）
-function isDescendantProject(
-  parents: Map<string, string>,
-  ancestorId: string,
-  candidateId: string,
-): boolean {
-  let current = candidateId;
-  const seen = new Set<string>();
-  while (current) {
-    if (current === ancestorId) return true;
-    if (seen.has(current)) return false;
-    seen.add(current);
-    current = parents.get(current) ?? "";
-  }
-  return false;
-}
-
-export async function collectDescendantIds(
-  db: DatabaseClient,
-  projectId: string,
-): Promise<string[]> {
-  const parents = await loadProjectParents(db);
-  const childrenOf = new Map<string, string[]>();
-  for (const [id, parent] of parents) {
-    if (!parent) continue;
-    const list = childrenOf.get(parent) ?? [];
-    list.push(id);
-    childrenOf.set(parent, list);
-  }
-  const descendants: string[] = [];
-  const queue = [text(projectId)];
-  const visited = new Set(queue);
-  while (queue.length > 0) {
-    const current = queue.shift() as string;
-    for (const child of childrenOf.get(current) ?? []) {
-      if (visited.has(child)) continue;
-      visited.add(child);
-      descendants.push(child);
-      queue.push(child);
-    }
-  }
-  return descendants;
-}
-
 export async function listProjects(
   db: DatabaseClient,
   ownerUserid?: string,
@@ -303,7 +239,7 @@ export async function listProjects(
   const result = await (ownerFilter
     ? db
         .prepare(
-          `SELECT p.id, p.name, p.brand, p.main_group_member_ids, p.owner_userid, p.main_chat_id, p.parent_id, p.status, p.note, p.created_at,
+          `SELECT p.id, p.name, p.brand, p.main_group_member_ids, p.owner_userid, p.main_chat_id, p.status, p.note, p.created_at,
                   (SELECT COUNT(*) FROM tasks t WHERE t.project_id = p.id) AS task_count
            FROM projects p
            WHERE p.owner_userid = ?
@@ -312,7 +248,7 @@ export async function listProjects(
         .bind(ownerFilter)
     : db
         .prepare(
-          `SELECT p.id, p.name, p.brand, p.main_group_member_ids, p.owner_userid, p.main_chat_id, p.parent_id, p.status, p.note, p.created_at,
+          `SELECT p.id, p.name, p.brand, p.main_group_member_ids, p.owner_userid, p.main_chat_id, p.status, p.note, p.created_at,
                   (SELECT COUNT(*) FROM tasks t WHERE t.project_id = p.id) AS task_count
            FROM projects p
            ORDER BY p.created_at DESC`,
@@ -328,7 +264,6 @@ export async function listProjects(
     mainGroupMemberIds: parseJsonArray(row.main_group_member_ids),
     ownerUserid: row.owner_userid ?? "",
     mainChatId: row.main_chat_id ?? "",
-    parentProjectId: row.parent_id ?? "",
     taskCount: Number(row.task_count),
   }));
 }
@@ -340,7 +275,7 @@ export async function getProjectDetail(
   const id = text(projectId);
   const project = await db
     .prepare(
-      `SELECT id, name, brand, main_group_member_ids, owner_userid, main_chat_id, parent_id, status, note, created_at
+      `SELECT id, name, brand, main_group_member_ids, owner_userid, main_chat_id, status, note, created_at
        FROM projects WHERE id = ?`,
     )
     .bind(id)
@@ -350,38 +285,13 @@ export async function getProjectDetail(
   const tasks = await db
     .prepare(
       `SELECT id, name, brand, quantity, claimed_quantity, due_at, status,
-              task_type, platform, content_format, share_token, owner_userid, task_chat_id
-       FROM tasks WHERE project_id = ?
-       ORDER BY created_at DESC`,
-    )
-    .bind(id)
-    .all<ProjectTaskRow>();
-
-  const subprojects = await db
-    .prepare(
-      `SELECT p.id, p.name, p.brand, p.owner_userid, p.main_chat_id,
-              (SELECT COUNT(*) FROM tasks t WHERE t.project_id = p.id) AS task_count
-       FROM projects p
-       WHERE p.parent_id = ?
-       ORDER BY p.created_at DESC`,
-    )
-    .bind(id)
-    .all<ProjectRow & { task_count: number }>();
-
-  const descendantIds = await collectDescendantIds(db, id);
-  const pushIds = [id, ...descendantIds];
-  const placeholders = pushIds.map(() => "?").join(", ");
-  const pushTasks = await db
-    .prepare(
-      `SELECT t.id, t.name, t.brand, t.quantity, t.claimed_quantity, t.due_at, t.status,
-              t.task_type, t.platform, t.content_format, t.share_token, t.owner_userid, t.task_chat_id,
-              pj.name AS project_name
-       FROM tasks t
-       LEFT JOIN projects pj ON pj.id = t.project_id
-       WHERE t.project_id IN (${placeholders})
+              task_type, platform, content_format, share_token, owner_userid, task_chat_id,
+              recovery_enabled, recovery_due_at,
+              (SELECT COUNT(*) FROM distributions d WHERE d.task_id = t.id AND d.result_submitted_at IS NOT NULL) AS recovery_submitted
+       FROM tasks t WHERE t.project_id = ?
        ORDER BY t.created_at DESC`,
     )
-    .bind(...pushIds)
+    .bind(id)
     .all<ProjectTaskRow>();
 
   return {
@@ -395,7 +305,6 @@ export async function getProjectDetail(
       mainGroupMemberIds: parseJsonArray(project.main_group_member_ids),
       ownerUserid: project.owner_userid ?? "",
       mainChatId: project.main_chat_id ?? "",
-      parentProjectId: project.parent_id ?? "",
       taskCount: tasks.results.length,
     },
     tasks: tasks.results,
@@ -406,15 +315,6 @@ export async function getProjectDetail(
         project.owner_userid,
       ),
     },
-    subprojects: subprojects.results.map((row) => ({
-      id: row.id,
-      name: row.name,
-      brand: row.brand,
-      ownerUserid: row.owner_userid ?? "",
-      mainChatId: row.main_chat_id ?? "",
-      taskCount: Number(row.task_count),
-    })),
-    pushTasks: pushTasks.results,
   };
 }
 
@@ -425,7 +325,6 @@ export type SaveProjectInput = {
   mainGroupMemberIds?: unknown;
   ownerUserid?: unknown;
   note?: unknown;
-  parentProjectId?: unknown;
 };
 
 export async function saveProject(
@@ -439,33 +338,19 @@ export async function saveProject(
   const brand = text(input.brand);
   const note = text(input.note ?? "");
   const ownerUserid = text(input.ownerUserid).slice(0, 64);
-  const parentProjectId = text(input.parentProjectId);
   const memberIds = effectiveProjectMembers(input.mainGroupMemberIds, ownerUserid);
   if (!name) throw new ProjectError("请填写项目名称");
 
-  if (parentProjectId) {
-    if (parentProjectId === id) {
-      throw new ProjectError("上级项目不能是项目自身");
-    }
-    const parents = await loadProjectParents(db);
-    if (!parents.has(parentProjectId)) {
-      throw new ProjectError("上级项目不存在", 404);
-    }
-    if (id && isDescendantProject(parents, id, parentProjectId)) {
-      throw new ProjectError("上级项目不能是当前项目的子项目");
-    }
-  }
-
   const now = new Date().toISOString();
   let projectId = id;
   if (id) {
     const result = await db
       .prepare(
         `UPDATE projects
-         SET name = ?, brand = ?, main_group_member_ids = ?, owner_userid = ?, note = ?, parent_id = ?
+         SET name = ?, brand = ?, main_group_member_ids = ?, owner_userid = ?, note = ?
          WHERE id = ?`,
       )
-      .bind(name, brand, JSON.stringify(memberIds), ownerUserid, note, parentProjectId, id)
+      .bind(name, brand, JSON.stringify(memberIds), ownerUserid, note, id)
       .run();
     if (result.meta.changes === 0) throw new ProjectError("项目不存在", 404);
   } else {
@@ -473,8 +358,8 @@ export async function saveProject(
     await db
       .prepare(
         `INSERT INTO projects
-          (id, name, brand, main_group_member_ids, owner_userid, parent_id, status, note, created_at)
-         VALUES (?, ?, ?, ?, ?, ?, 'active', ?, ?)`,
+          (id, name, brand, main_group_member_ids, owner_userid, status, note, created_at)
+         VALUES (?, ?, ?, ?, ?, 'active', ?, ?)`,
       )
       .bind(
         projectId,
@@ -482,7 +367,6 @@ export async function saveProject(
         brand,
         JSON.stringify(memberIds),
         ownerUserid,
-        parentProjectId,
         note,
         now,
       )
@@ -505,13 +389,6 @@ export async function deleteProject(
 ): Promise<void> {
   const id = text(projectId);
   if (!id) throw new ProjectError("缺少项目 ID");
-  const childCount = await db
-    .prepare("SELECT COUNT(*) AS count FROM projects WHERE parent_id = ?")
-    .bind(id)
-    .first<{ count: number }>();
-  if (Number(childCount?.count ?? 0) > 0) {
-    throw new ProjectError("该项目下还有子项目，请先删除子项目或把它们移到其他项目下");
-  }
   const result = await db
     .prepare("DELETE FROM projects WHERE id = ?")
     .bind(id)