feat(iit): V3.2 data consistency + project isolation + admin config redesign + Chinese labels

Summary:
- Refactor timeline API to read from qc_field_status (SSOT) instead of qc_logs
- Add field-issues paginated API with severity/dimension/recordId filters
- Add LEFT JOIN field_metadata + qc_event_status for Chinese display names
- Implement per-project ChatOrchestrator cache and SessionMemory isolation
- Redesign admin IIT config tabs (REDCap -> Fields -> KB -> Rules -> Members)
- Add AI-powered QC rule generation (D3 programmatic + D1/D5/D6 LLM-based)
- Add clickable warning/critical detail Modal in ReportsPage
- Auto-dispatch eQuery after batch QC via DailyQcOrchestrator
- Update module status documentation to v3.2

Backend changes:
- iitQcCockpitController: rewrite getTimeline from qc_field_status, add getFieldIssues
- iitQcCockpitRoutes: add field-issues route
- ChatOrchestrator: per-projectId cached instances
- SessionMemory: keyed by userId::projectId
- WechatCallbackController: resolve projectId from iitUserMapping
- iitRuleSuggestionService: dimension-based suggest + generateD3Rules
- iitBatchController: call DailyQcOrchestrator after batch QC

Frontend changes:
- AiStreamPage: adapt to new timeline structure with dimension tags
- ReportsPage: clickable stats cards with issue detail Modal
- IitProjectDetailPage: reorder tabs, add AI rule generation UI
- iitProjectApi: add TimelineIssue, FieldIssueItem types and APIs

Status: TypeScript compilation verified, no new lint errors
Made-with: Cursor

backend/src/modules/admin/iit-projects/iitQcCockpitRoutes.ts

@@ -292,6 +292,25 @@ export async function iitQcCockpitRoutes(fastify: FastifyInstance) {
   // V3.1: D6 方案偏离列表
   fastify.get('/:projectId/qc-cockpit/deviations', iitQcCockpitController.getDeviations.bind(iitQcCockpitController));
 
+  // 字段级问题分页查询（支持按维度/严重程度筛选）
+  fastify.get('/:projectId/qc-cockpit/field-issues', {
+    schema: {
+      description: '从 qc_field_status 分页查询所有问题字段',
+      tags: ['IIT Admin - QC 驾驶舱'],
+      params: { type: 'object', properties: { projectId: { type: 'string' } }, required: ['projectId'] },
+      querystring: {
+        type: 'object',
+        properties: {
+          page: { type: 'string' },
+          pageSize: { type: 'string' },
+          severity: { type: 'string' },
+          dimension: { type: 'string' },
+          recordId: { type: 'string' },
+        },
+      },
+    },
+  }, iitQcCockpitController.getFieldIssues.bind(iitQcCockpitController));
+
   // ============================================================
   // GCP 业务报表路由
   // ============================================================