# Final security gate verification — 2026-08-15

Date: 2026-08-15
Status: local code/security gate passed; production-operation gate remains pending

## Scope

This entry closes the post-remediation exact-current review for authentication, storage, durable rate limiting, tenant/group/session isolation, analytics/export authorization, bounded parsing, and upload handling. JSON stores remain runtime-authoritative. SQLAlchemy/Alembic repositories and importer remain local-only; no runtime cutover was performed.

## Verification evidence

- `cd backend && .venv/bin/python -m pytest -q --tb=short` — **319 passed in 53.15s**.
- Focused auth/isolation/export/upload suite — **166 passed in 24.48s**.
- `cd frontend && npm run test:unit` — **4 passed**.
- `compileall` and AST parsing — passed.
- `git diff --check` — passed.
- Added-line static security scan — no hardcoded secrets, shell execution, dynamic `eval`/`exec`, pickle loads, or formatted SQL query patterns detected.
- An earlier shared-environment `pip check` was blocked because `alibabacloud-tea-openapi 0.4.4` required `cryptography<47.0.0` while `cryptography 50.0.0` was installed; the exact-current isolated lock-file check below supersedes that result for repository reproducibility, not for the stale local venv.
- `ruff`, `mypy`, `eslint`, and `tsc` are unavailable in this environment.

## Exact-current re-verification

- Clean isolated environment from `backend/requirements.lock.txt`: **319 passed in 57.62s** and `pip check` reported **no broken requirements**.
- Existing `backend/.venv`: version-drifted; `packaging` and `pygments` are present, but `pip check` reports the pre-existing `alibabacloud-tea-openapi 0.4.4` requirement conflict with installed `cryptography 50.0.0`. This is a local environment issue, not a source or lock-file regression.
- Frontend unit suite: **4 passed**.
- Playwright fixture journeys using installed Google Chrome: **12 passed in 9.6s** across desktop 1440×900, mobile 320×568, and mobile 500×768.
- Frontend production build: **1,781 modules transformed**; `npm audit --audit-level=high`: **0 vulnerabilities**.
- `compileall`, AST parse (**38 files, 0 errors**), and `git diff --check`: passed.
- Temporary local PostgreSQL: Alembic upgrade, 7-table tenant/uniqueness runtime probe, ORM-vs-migration parity, offline PostgreSQL DDL, and downgrade to base all passed; temporary databases were cleaned up.
- Temporary local PostgreSQL importer: dry-run, first apply, idempotent second apply, metadata-only output, conflict rejection with transaction rollback, and downgrade cleanup all passed against disposable fixtures.
- Docker remains unavailable locally, so image build and container `/ready` smoke remain unverified.

These are local verification results, not production approval.

## Fresh independent review gate

Three fresh exact-current read-only scoped reviewers returned complete five-key JSON verdicts. Each had `passed=true`, `security_concerns=[]`, and `logic_errors=[]`:

- `deleg_e835e807` — auth, storage, JWT identity binding, malformed records, durable rate-limit locking/migration.
- `deleg_4ec7eb5a` task 0 — tenant, group ownership/private groups, session/chat scope, persona redaction, weak-area evidence.
- `deleg_4ec7eb5a` task 1 — analytics/export/report authorization, signed-link redemption, bounded scans/rows/bytes, parser and upload limits/cleanup.

Reviewer suggestions are non-blocking hardening only: preserve regression coverage, consider rejecting invalid date filters instead of treating them as unbounded, add explicit mode checks in the shared session authorization helper, and document the intended global super-admin export scope.

Earlier timed-out, interrupted, stale, or incomplete reviewer runs were not counted as approval.

## Operational boundary

No commit, push, deploy, public-access restoration, production migration, credential rotation, or authenticated production smoke occurred. Docker image/runtime, Redis persistence, real target PostgreSQL snapshot parity/retained-backup rollback, runtime repository cutover, real-provider QA, production-authenticated browser/mobile QA, and production verification remain pending. The temporary-local PostgreSQL schema and importer gates passed, but production readiness is therefore **not approved**.

## Next action

Keep the application behind the restricted-operation gate. A future operator-approved deployment must still perform bootstrap credential setup, JWT secret rotation, audit inspection, authenticated smoke, and production persistence/parity checks before public access or runtime repository cutover.