Task: Integrate RDS PostgreSQL support into main

Identity

Task ID: 20260812-integrate-rds-postgres-4e61c2
Mode: Integration
Branch: codex/20260812-integrate-rds-postgres-4e61c2-integrate-rds-postgres-4e61c2
Worktree: D:\Datas\OthersProjects\NianAIGC-integration-rds-4e61c2
Base commit: 84d84ba94f136f10624700e8d34ed19fc6fe7fe7
Owner: codex
Status: Ready for Integration

Integrate feature commit 84d84ba94f136f10624700e8d34ed19fc6fe7fe7 into the default branch.
Promote the completed RDS/ACK task's durable backend, migration, workload, and operational boundaries into canonical project memory.
Preserve the pre-existing project-document initialization in the occupied main worktree without adopting unrelated application changes.

Use an exclusively owned integration worktree and repository integration lock.
Do not overwrite or delete the untracked .project-docs files in the occupied main worktree unless byte-equivalence with the committed initialization baseline is verified.
Record only confirmed RDS/ACK architecture and deployment facts; leave unrelated placeholder project positioning/domain memory untouched.
Keep live RDS migration, Docker runtime, and ACK rollout explicitly unverified.

Committed the initializer-created project-memory baseline and completed Docker verification record on main, then released the previously occupied main worktree without deleting unknown files.
Rebased the reviewed RDS/ACK implementation onto the updated main; git range-diff confirmed the implementation patch was unchanged.
Promoted the source task's accepted backend, migration, workload, and operational boundaries into canonical project memory.
Corrected the ACK manifest checker to normalize CRLF before its multiline assertion, making the verified deployment check portable on Windows.

Source feature commit 84d84ba is present and based directly on main through initialization commit 0bcb149.
Source task final and incremental Sol reviews returned PASS.
Integration verification found and corrected a Windows CRLF sensitivity in scripts/check-ack-manifests.mjs; manifest contents were valid, but the assertion used a literal LF-only substring.
npm ci --ignore-scripts passed in the final integration worktree.
npm test -- --run passed: 31 files / 119 tests.
npx tsc --noEmit --pretty false --incremental false passed.
npm run deploy:check passed: 8 ACK manifests.
pnpm install --lockfile-only --frozen-lockfile passed.
npm run build passed and includes /api/ready.
Live RDS migration, Docker container startup, and ACK rollout remain unverified because those external services were unavailable.

Use the deployment checklist recorded in canonical current state before production cutover.