feat(iit): harden QC pipeline consistency and release artifacts

Implement IIT quality workflow hardening across eQuery deduplication, guard metadata validation, timeline/readability improvements, and chat evidence fallbacks, then synchronize release and development documentation for deployment handoff.

Includes migration/scripts for open eQuery dedupe guards, orchestration/status semantics, report/tool readability fixes, and updated module status plus deployment checklist.

Made-with: Cursor

backend/src/modules/iit-manager/services/QcReportService.ts

@@ -213,6 +213,17 @@ class QcReportServiceClass {
         return null;
       }
 
+      // 若缓存早于最新质控时间，则视为过期，触发重算
+      const latestQcRows = await prisma.$queryRaw<Array<{ last_qc_at: Date | null }>>`
+        SELECT MAX(last_qc_at) AS last_qc_at
+        FROM iit_schema.qc_field_status
+        WHERE project_id = ${projectId}
+      `;
+      const latestQcAt = latestQcRows?.[0]?.last_qc_at;
+      if (latestQcAt && cached.generatedAt < latestQcAt) {
+        return null;
+      }
+
       const issuesData = cached.issues as any || {};
 
       return {