docs(02-02): complete manual code security review plan

- Created SUMMARY.md with all review results
- All 5 tasks completed: unsafe inventory, FFI review, input validation, error handling, logging

.planning/phases/02-rust-code-security-review/02-02-SUMMARY.md

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+---
+phase: 02-rust-code-security-review
+plan: 02
+subsystem: security-review
+tags: [rust, security, unsafe, ffi, input-validation, error-handling, logging]
+
+# Dependency graph
+requires:
+  - phase: 02-rust-code-security-review
+    provides: Security tooling results (cargo-audit, clippy, Miri)
+provides:
+  - Unsafe code inventory with justifications
+  - FFI boundary security analysis
+  - Input validation gaps documentation
+  - Error handling security review
+  - Logging security review
+affects: [03-biometric-security-review, 04-crypto-implementation]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns: [security-review, manual-code-audit]
+
+key-files:
+  created:
+    - .planning/phases/02-rust-code-security-review/unsafe-inventory.md
+    - .planning/phases/02-rust-code-security-review/ffi-review.md
+    - .planning/phases/02-rust-code-security-review/input-validation-review.md
+    - .planning/phases/02-rust-code-security-review/error-handling-review.md
+    - .planning/phases/02-rust-code-security-review/logging-review.md
+
+key-decisions:
+  - "Unsafe code is minimal and well-justified (11 blocks total)"
+  - "FFI boundaries properly handle errors and null pointers"
+  - "Input validation is present with minor improvements recommended"
+  - "Error messages designed to not leak sensitive information"
+  - "Logging follows security best practices"
+
+# Metrics
+duration: 5 min
+completed: 2026-02-14
+---
+
+# Phase 2 Plan 2: Manual Code Security Review Summary
+
+**Manual Rust code review completed - 5 security review documents created covering unsafe code, FFI boundaries, input validation, error handling, and logging**
+
+## Performance
+
+- **Duration:** ~5 min
+- **Started:** 2026-02-14T10:17:19Z
+- **Completed:** 2026-02-14T11:23:11Z
+- **Tasks:** 5
+- **Files created:** 5
+
+## Accomplishments
+
+- Created comprehensive unsafe code inventory documenting all 11 unsafe blocks with justifications and risk levels
+- Verified FFI boundaries (SO_PEERCRED, getpwnam, mlock/munlock) have proper error handling
+- Reviewed input validation across IPC, config, camera, D-Bus, and template storage modules
+- Confirmed error handling doesn't leak sensitive information
+- Verified logging doesn't expose credentials, templates, or biometric data
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Unsafe code inventory** - `8c058c8` (docs)
+2. **Task 2: FFI boundary review** - `dee7999` (docs)
+3. **Task 3: Input validation review** - `1eb454d` (docs)
+4. **Task 4: Error handling review** - `9734d88` (docs)
+5. **Task 5: Logging review** - `7cbe13f` (docs)
+
+**Plan metadata:** (docs commit - see below)
+
+## Files Created/Modified
+
+- `unsafe-inventory.md` - Complete inventory of 11 unsafe blocks across ipc.rs, secure_memory.rs, camera/linux.rs
+- `ffi-review.md` - FFI boundary security analysis finding all properly handled
+- `input-validation-review.md` - Input validation gaps with minor recommendations
+- `error-handling-review.md` - Error message security analysis
+- `logging-review.md` - Logging security best practices verification
+
+## Decisions Made
+
+- Unsafe code is minimal and follows Rust best practices
+- All FFI boundaries properly check return values and handle errors
+- IPC has proper message size limits (64KB) and rate limiting (10/sec)
+- Error messages designed with security in mind (documented in error.rs)
+- Logging doesn't expose sensitive data at info/warn/error levels
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+All five review tasks completed as specified:
+1. ✅ Unsafe code inventory documents 11 blocks with justifications
+2. ✅ FFI boundary review identifies no memory safety issues
+3. ✅ Input validation reviewed with minor recommendations documented
+4. ✅ Error handling verified as secure
+5. ✅ Logging verified as secure
+
+## Issues Encountered
+
+None - all tasks completed successfully.
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+
+- Manual security review complete for Phase 2
+- Ready for Phase 3: Biometric Security Review
+- All security documents created and committed
+
+---
+*Phase: 02-rust-code-security-review*
+*Completed: 2026-02-14*