feat: 新增项目中心——按项目组织任务/任务群/总群并一键推送

- 新表 projects / project_group_chats，partners 加 partner_type/wecom_userid，tasks 加 project_id（迁移 0010）
- 项目 CRUD、总群成员配置、任务群人工映射（群主→合作方）、任务挂项目
- 推送：总群成员逐人应用消息 + 任务群按群主企业群发，结果分项回显

db/schema.ts

@@ -22,6 +22,10 @@ export const partners = mysqlTable("partners", {
   claimedTotal: int("claimed_total").notNull().default(0),
   completedTotal: int("completed_total").notNull().default(0),
   wecomExternalUserId: varchar("wecom_external_user_id", { length: 128 }),
+  partnerType: varchar("partner_type", { length: 32 })
+    .notNull()
+    .default("external_koc"),
+  wecomUserid: varchar("wecom_userid", { length: 128 }).notNull().default(""),
   createdAt: timestamp("created_at"),
 });
 
@@ -53,6 +57,7 @@ export const tasks = mysqlTable(
       mode: "string",
       fsp: 3,
     }),
+    projectId: varchar("project_id", { length: 64 }).notNull().default(""),
     createdAt: timestamp("created_at"),
   },
   (table) => [uniqueIndex("tasks_share_token_idx").on(table.shareToken)],
@@ -282,6 +287,31 @@ export const wecomGroupPushes = mysqlTable(
   (table) => [index("wecom_group_pushes_task_idx").on(table.taskId)],
 );
 
+export const projects = mysqlTable("projects", {
+  id: varchar("id", { length: 64 }).primaryKey(),
+  name: varchar("name", { length: 255 }).notNull(),
+  brand: varchar("brand", { length: 255 }).notNull().default(""),
+  mainGroupMemberIds: text("main_group_member_ids").notNull(),
+  status: varchar("status", { length: 32 }).notNull().default("active"),
+  note: text("note").notNull(),
+  createdAt: timestamp("created_at"),
+});
+
+export const projectGroupChats = mysqlTable(
+  "project_group_chats",
+  {
+    id: varchar("id", { length: 64 }).primaryKey(),
+    projectId: varchar("project_id", { length: 64 }).notNull(),
+    chatId: varchar("chat_id", { length: 128 }).notNull(),
+    partnerId: varchar("partner_id", { length: 64 }).notNull().default(""),
+    createdAt: timestamp("created_at"),
+  },
+  (table) => [
+    uniqueIndex("project_group_chats_uniq").on(table.projectId, table.chatId),
+    index("project_group_chats_project_idx").on(table.projectId),
+  ],
+);
+
 export const backgroundJobs = mysqlTable(
   "background_jobs",
   {