sales-trainer/docs/engineering-log/2026-08-15-final-security-gate.md

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.