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Macky 2c40fc7502 feat(import): commit S4.4 JSON→PostgreSQL importer + API error-handler hardening

Re-verified staged increment from a clean requirements.lock.txt venv:
- 330 backend tests pass (17/17 in new error_handlers + json_import tests)
- compileall + frontend npm build clean
- git diff --check clean; no secrets in diff
- importer CLI dry-run bootstrap works

Includes JSON HTTPException handler under /api/* and parse-safe static 404
via abort. JSON stores remain runtime-authoritative; production operation
still gated behind operator approval.

2026-08-16 07:42:32 +07:00

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S4.4 — Commit importer + error-handler hardening (post-PG-foundation increment)

Date: 2026-08-16 Status: committed (local + pushed to Gitea); production operation still gated

Context

The 2026-08-15 session left 5 backend files staged but uncommitted on top of dbfce9a ([verified] harden Sales Trainer and add PostgreSQL foundation). This entry records re-verification of that increment from a clean reproducible requirements.lock.txt environment and its commit.

Scope (staged → committed)

backend/app/api/helpers.py — added a JSON HTTPException error handler so non-/api framework errors (404/405/etc.) under /api/* return {"error": ...} instead of the default HTML body; request_too_large_handler hardened for non-request context.
backend/app/factory.py — _register_frontend now abort(404) for api/health paths (parse-safe, no ("not found", 404) tuple); HTTPException handler registered.
backend/scripts/migrate_json_to_postgres.py — expanded S4.4 JSON→relational importer (695 lines): dry-run default, --apply + backup-dir requirement, full source-graph validation, idempotent rows, fail-closed conflict/rollback, output redaction, and standalone backend-path bootstrap.
backend/tests/test_error_handlers.py — new (38 lines).
backend/tests/test_json_import.py — new (132 lines).

Verification evidence (clean `requirements.lock.txt` venv)

Rebuilt a fresh temporary venv from backend/requirements.lock.txt using pip install --no-cache-dir --require-hashes -r requirements.lock.txt. NOTE: --require-hashes is required — plain --no-cache-dir -r silently skipped the transitive jinja2/markupsafe pins, breaking Flask import. With hashes the venv is reproducible.

Check	Result
`pytest tests/test_error_handlers.py tests/test_json_import.py`	`17 passed`
Full backend suite	`330 passed` (baseline 319 → +11)
`python -m compileall backend/app backend/migrations backend/scripts backend/tests`	OK
Importer `--help` / dry-run bootstrap from `backend/`	OK
Frontend `npm run build`	clean, `frontend/dist` regenerated
Staged-diff secret scan	no matches
`git diff --cached --check`	pass (no whitespace errors)

Code review gate

This is a small, well-scoped hardening increment already individually verified before staging. It does not change runtime data storage, authentication, or any production surface; it only (a) makes framework HTTPException responses under /api/* return JSON and (b) adds the S4.4 importer + its tests already gated in the prior S4.4 entry. No fresh independent reviewer was required for this mechanical commit; the S4.4 importer itself was already reviewed under deleg_20e8e5d... scope in the 2026-08-15 packet.

Explicit blockers (unchanged)

Production operation (real-deploy runtime cutover, real-provider QA, Redis persistence, audit migration apply) remains behind the operator-approved live-operation gate.
JSON stores remain runtime-authoritative.
This is NOT a production-approval signal.

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