Clean. No source code was modified. Only the prompt file is untracked.

INIT-012 — Complete Report
1. Implementation Summary
Task ID: INIT-012 — Database Connection Validation Status: ✅ Validation complete — awaiting approval and commit

Finding before writing any code: app/core/Database.php (INIT-008) already fully satisfies every INIT-012 requirement. The PDO singleton was implemented to completion in INIT-008, not as a skeleton. INIT-012's role is to validate this implementation against the live MariaDB instance — which has now been confirmed.

Live validation result: 33/33 tests PASS. MariaDB connection at 127.0.0.1:3306/inveetaire is live, charset is utf8mb4, PDO attributes are correct, SELECT 1 returns 1, real prepared statements execute correctly, singleton returns the same instance on repeated calls.

2. Files Created
None. Per the Sprint 0 execution plan, INIT-012 "creates/completes" app/core/Database.php and validates config/database.php. Both already exist and are complete from INIT-008 and INIT-002 respectively. No new files are required.

File	Status
app/core/Database.php	Already complete (INIT-008) — all INIT-012 PDO requirements satisfied
config/database.php	Already complete (INIT-002) — connection validated live
3. Files Modified
None. Zero source code changes were made. The implementation was already complete.

4. Acceptance Criteria Verification
Criterion	Status	Evidence
Connection established from .env credentials	✅ LIVE	127.0.0.1:3306/inveetaire
SELECT 1 executes and returns result	✅ LIVE	Result: 1
PDO::ATTR_ERRMODE = ERRMODE_EXCEPTION	✅ LIVE	Value: 2 (PDO::ERRMODE_EXCEPTION)
PDO::ATTR_DEFAULT_FETCH_MODE = FETCH_ASSOC	✅ LIVE	Value: 2 (PDO::FETCH_ASSOC)
PDO::ATTR_EMULATE_PREPARES = false	✅ CODE	Set in connect() defaults
charset = utf8mb4	✅ LIVE	character_set_connection = utf8mb4
Bad credentials → caught → logged → friendly error	✅ CODE	catch(PDOException) → Logger::error() → ErrorHandler::handleException()
No raw exception message exposed to browser	✅ CODE	echo not present in Database.php
DSN logged with dbname redacted	✅ CODE	preg_replace('/dbname=[^;]+/', 'dbname=***', $dsn)
Singleton: same PDO instance per request	✅ LIVE	$pdo === $pdo2 confirmed
FETCH_ASSOC: returns arrays not objects	✅ LIVE	is_array($row) && !is_object($row) confirmed
Real prepared statements work	✅ LIVE	SELECT ? + ? AS sum with [3, 4] = 7
5. Definition of Done Checklist
Item	Status
✅ Database.php complete — all PDO options correct	Confirmed (INIT-008)
✅ config/database.php correct — all keys match	Confirmed (INIT-002)
✅ Live MariaDB connection established	127.0.0.1:3306/inveetaire
✅ SELECT 1 executes successfully	Result = 1
✅ charset = utf8mb4 on live connection	Confirmed via SHOW VARIABLES
✅ Singleton pattern verified live	Same object returned on repeat
✅ 33/33 validation tests PASS	CLI confirmed, zero failures
✅ No migrations, no schema, no seeders	Not applicable
✅ No new files created — not needed	Confirmed
✅ No source code modified	git status clean
6. Proposed Git Commit Message
[INIT-012] Validate live MariaDB connection — SELECT 1 confirmed, all PDO attributes verified
Do NOT execute. Awaiting your instruction.

7. Documentation Deviations
None. The Sprint 0 plan states INIT-012 "creates/completes" Database.php — but INIT-008 already created it to completion (not as a skeleton). This is an ordering deviation in the original plan, not an implementation deviation. The actual PDO configuration, error handling, and singleton pattern all match the INIT-012 specification exactly. The live validation confirms everything is correct.

Do not continue to INIT-009. Awaiting your approval.