Audit Phase 9 (Generic Ops Integration)

docs/audit/PHASE9_AUDIT.md

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+# PHASE 9 AUDIT: Generic Ops Integration
+
+## Scope & Objectives
+
+**Target Components:**
+- `src/Generic/Support/MysqlOps.php`
+- `src/Generic/Support/MongoOps.php`
+- `src/Generic/Support/RedisOps.php`
+
+**Objectives:**
+1.  **Responsibilities:** Verify strict adherence to execution helper patterns (no business/pagination/hydration logic).
+2.  **Safety & Determinism:** Confirm `RedisOps` uses bounded `SCAN` and fail-fast mechanisms.
+3.  **Architectural Boundaries:** Ensure Ops classes remain isolated from Repositories, Adapters, and DTOs.
+4.  **Fake vs Real Parity:** specific handling for Fakes to match Real driver behavior.
+
+## ADR Compliance Matrix
+
+| ADR | Requirement | Status | Verification |
+| :--- | :--- | :--- | :--- |
+| **ADR-001** | Architecture Boundaries | ✅ PASS | Ops classes interact only with raw drivers (PDO, Redis, MongoDB\Collection); no Repository/DTO dependencies. |
+| **ADR-007** | Fail-Fast & Determinism | ✅ PASS | `RedisGuard` enforces hard limits on iterations and key counts; exceptions thrown immediately on violation. |
+| **ADR-014** | No Implicit Behavior | ✅ PASS | Type casting (e.g., 64-bit int overflow in MySQL) is explicit; return types are strictly typed. |
+| **ADR-015** | Fake vs Real Parity | ✅ PASS | All Ops classes provide fallback paths for Fakes that mimic Real driver output normalization and safety checks. |
+
+## Findings
+
+### 1. MysqlOps (`src/Generic/Support/MysqlOps.php`)
+-   **Responsibility:** Strictly limits scope to driver normalization (e.g., `lastInsertId`).
+-   **Safety:** Correctly implements 64-bit integer overflow protection by checking `(string)(int)$id === (string)$id` and returning string if overflow occurs.
+-   **Parity:** Includes `method_exists` checks to support Fake drivers with identical normalization logic.
+
+### 2. MongoOps (`src/Generic/Support/MongoOps.php`)
+-   **Responsibility:** Handles BSON conversions and cursor iteration only. No hydration to entities.
+-   **Boundaries:** Clean separation; accepts `object` to support Fakes without requiring `MongoDB\Collection` inheritance (which is final).
+-   **Parity:** Supports `getArrayCopy` for mocked documents.
+
+### 3. RedisOps (`src/Generic/Support/RedisOps.php`)
+-   **Responsibility:** Standardizes `GET`/`SET`/`DEL` return types across `Redis`, `Predis`, and Fakes.
+-   **Safety:**
+    -   `keys()` implementation uses `SCAN` (via `scanRedis` or `scanPredis`).
+    -   **Bounded Loops:** The loop explicitly tracks `iterationsCount` via `RedisGuard`, ensuring that even empty chunks count toward the limit, preventing infinite loops.
+    -   **Fail-Fast:** `RedisSafetyException` is thrown immediately when limits (`maxScanKeys` or `maxScanIterations`) are exceeded.
+-   **Parity:** Fakes use a fallback strategy (`fallbackKeys`) but are still validated against `maxScanKeys` via `guard->trackScan()`, ensuring tests don't accidentally rely on massive datasets that would fail in production.
+
+## Verdict
+
+**STATUS: PASS**
+
+The components fully satisfy Phase 9 requirements and adhere to all strict mode ADRs. The implementation of `RedisOps` is particularly robust regarding safety limits.
+
+## Lock Recommendation
+
+These files represent low-level infrastructure. They should be considered **LOCKED** against functional changes unless a change in the underlying driver (PHP extension) necessitates it.
+
+-   `src/Generic/Support/MysqlOps.php`
+-   `src/Generic/Support/MongoOps.php`
+-   `src/Generic/Support/RedisOps.php`
+-   `src/Generic/Support/Safety/RedisGuard.php`
+-   `src/Generic/Support/Safety/RedisSafetyConfig.php`