refactor(data): 收口关系表运行时数据源

- 移除已迁移业务 AppData 运行时 fallback，改走领域 API 和关系表快读
- 补齐需求产品负责人、版本计划任务 JSON 和成员 username 回填迁移
- 统一治理字典入口，并补充 AI provider、数据源契约和领域服务测试

Co-Authored-By: Codex GPT-5 <codex@openai.com>

apps/server/prisma/migrations/20260709000000_requirement_product_owner/migration.sql

@@ -0,0 +1,9 @@
+ALTER TABLE "requirements" ADD COLUMN "product_owner_id" TEXT;
+
+ALTER TABLE "requirements"
+  ADD CONSTRAINT "requirements_product_owner_id_fkey"
+  FOREIGN KEY ("product_owner_id") REFERENCES "users"("id")
+  ON DELETE SET NULL ON UPDATE CASCADE;
+
+CREATE INDEX "requirements_product_owner_created_at_idx"
+  ON "requirements"("product_owner_id", "created_at" DESC);

apps/server/prisma/migrations/20260709010000_member_username_backfill/migration.sql

@@ -0,0 +1,48 @@
+WITH raw_members AS (
+  SELECT member
+  FROM app_data
+  CROSS JOIN LATERAL jsonb_array_elements(
+    CASE
+      WHEN jsonb_typeof(value -> 'members') = 'array' THEN value -> 'members'
+      ELSE '[]'::jsonb
+    END
+  ) AS member
+  WHERE key = 'members'
+),
+members AS (
+  SELECT
+    NULLIF(member ->> 'id', '') AS id,
+    NULLIF(member ->> 'username', '') AS username,
+    NULLIF(member ->> 'departmentId', '') AS department_id,
+    NULLIF(member ->> 'roleId', '') AS role_id,
+    COALESCE(member ->> 'phone', '') AS phone,
+    COALESCE(member ->> 'password', '') AS password,
+    CASE
+      WHEN jsonb_typeof(member -> 'isSystem') = 'boolean' THEN (member ->> 'isSystem')::boolean
+      ELSE NULL
+    END AS is_system,
+    COUNT(*) OVER (PARTITION BY NULLIF(member ->> 'username', '')) AS username_count
+  FROM raw_members
+)
+UPDATE users AS u
+SET
+  username = CASE
+    WHEN NULLIF(u.username, '') IS NULL
+      AND m.username IS NOT NULL
+      AND m.username_count = 1
+      AND NOT EXISTS (
+        SELECT 1
+        FROM users AS other_user
+        WHERE other_user.id <> u.id
+          AND other_user.username = m.username
+      )
+      THEN m.username
+    ELSE u.username
+  END,
+  department_id = COALESCE(m.department_id, u.department_id),
+  role_id = COALESCE(m.role_id, u.role_id, 'member'),
+  phone = COALESCE(m.phone, u.phone, ''),
+  password = COALESCE(m.password, u.password, ''),
+  is_system = COALESCE(m.is_system, u.is_system, false)
+FROM members AS m
+WHERE u.id = m.id;

apps/server/prisma/migrations/20260709010000_version_plan_tasks/migration.sql

@@ -0,0 +1,2 @@
+ALTER TABLE "version_plans"
+  ADD COLUMN IF NOT EXISTS "tasks" JSONB NOT NULL DEFAULT '[]';

apps/server/prisma/schema.prisma

@@ -24,7 +24,8 @@ model User {
   createdTasks   Task[]          @relation("TaskCreator")
   assignedTasks  Task[]          @relation("TaskAssignee")
   projectMembers ProjectMember[]
-  requirements   Requirement[]
+  requirements   Requirement[] @relation("RequirementCreator")
+  productOwnedRequirements Requirement[] @relation("RequirementProductOwner")
   watchedTasks   TaskWatcher[]
 
   @@map("users")
@@ -116,11 +117,13 @@ model Requirement {
   sourceTarget String? @map("source_target")
   platform    String?
   creatorId   String?  @map("creator_id")
+  productOwnerId String? @map("product_owner_id")
   createdAt   DateTime @default(now()) @map("created_at")
   updatedAt   DateTime @updatedAt @map("updated_at")
 
   product Product @relation(fields: [productId], references: [id])
-  creator User?   @relation(fields: [creatorId], references: [id])
+  creator User?   @relation("RequirementCreator", fields: [creatorId], references: [id])
+  productOwner User? @relation("RequirementProductOwner", fields: [productOwnerId], references: [id])
 
   @@id([id, productId])
   @@unique([productId, code])
@@ -290,6 +293,7 @@ model VersionPlan {
   actualStartAt       DateTime? @map("actual_start_at")
   completedAt         DateTime? @map("completed_at")
   resultUrl           String?  @map("result_url")
+  tasks               Json     @default("[]")
   requirementCoverage Json     @default("[]") @map("requirement_coverage")
   logs                Json     @default("[]")
   createdAt           DateTime @default(now()) @map("created_at")