# Code Review Report

**Batch**: 6 (AZ-315 — documentation sync, Phase C of coupling refactor)
**Date**: 2026-05-10
**Verdict**: PASS

## Scope

Documentation-only batch. No source code, build configuration, or test changes. Closes epic AZ-309 (architecture coupling refactor) by syncing the architecture / module-layout / compliance baseline / per-component module docs to the post-split reality.

## Changed files

- `_docs/02_document/architecture.md` — components list updated with csproj names; internal-communication table updated to reflect calls flowing through Common interfaces (no direct concrete dependencies).
- `_docs/02_document/module-layout.md` — three Layer-3 components now have their own per-component sections with csproj path, public API list, ProjectReferences, and explicit "no cross-sibling reference" note. Allowed-Dependencies table simplified to one Layer-3 row stating siblings communicate only through Common interfaces. Verification section corrects DataAccess → Common assumption (F5).
- `_docs/02_document/architecture_compliance_baseline.md` — F1, F2, F3, F4, F5 marked Resolved with task IDs and commit references; baseline summary now shows 0 findings post AZ-309.
- `_docs/02_document/diagrams/components.md` — component summary table updated with new csproj names; added clarifying note that Layer-3-to-Layer-3 arrows are logical-only via Common interfaces; removed incorrect `DA --> Common` edge.
- `_docs/02_document/components/03_tile_downloader/description.md` — csproj path added; `ITileService` extended interface enumerated; downloader/service consumers note clarified.
- `_docs/02_document/modules/common_interfaces.md` — implementations now mapped to per-component csprojs; new ITileService methods documented.
- `_docs/02_document/modules/services_tile_service.md` — csproj path added; `GetOrDownloadTileAsync` and `DownloadAndStoreSingleTileAsync` documented; `IMemoryCache` dependency declared.
- `_docs/02_document/modules/services_google_maps_downloader.md` — csproj path added; RateLimitException relocation noted.
- `_docs/02_document/modules/tests_unit.md` — ProjectReferences updated to the three new service projects.
- `_docs/02_tasks/_dependencies_table.md` — refactor tasks marked Done / In Progress.

## Findings

| # | Severity | Category | File:Line | Title |
|---|----------|----------|-----------|-------|

No findings.

## Phase results

### Phase 2 — Spec compliance (AC verification)

- **AC-1: Architecture doc reflects the split** ✓
  `architecture.md` Architecture Vision and Internal Communication sections name all three csprojs and explicitly state cross-sibling calls use Common interfaces.
- **AC-2: Module layout is accurate** ✓
  `module-layout.md` § Per-Component Mapping has one section per new csproj with `csproj`, `Public API`, `ProjectReferences`, `Imports from`, and `Consumed by` keyed to the actual on-disk layout.
- **AC-3: Compliance baseline closed for F3/F4** ✓
  `architecture_compliance_baseline.md` table has a Status column; F3/F4/F5 each cite the resolving task IDs (AZ-310/311 for F3, AZ-312/313/314 for F4, AZ-315 for F5) and commit hash where applicable.
- **AC-4: No stale references to current state** ✓
  `grep "SatelliteProvider\.Services[^.]"` against `_docs/02_document/` returns matches only in:
  - `00_discovery.md` (historical baseline snapshot — pre-refactor by design)
  - `architecture_compliance_baseline.md` (describing the resolved-state of historical findings)
  - `module-layout.md` § Layout Rule #1 (one historical-context mention naming the project that was split)
  - `components/03_tile_downloader/description.md` (one historical-context mention explaining the relocation)
  No current-state description still claims a single Services project.

### Phase 3 — Code quality

N/A — no code changes.

### Phase 4 — Security quick-scan

N/A — no code changes.

### Phase 5 — Performance scan

N/A — no code changes.

### Phase 6 — Cross-task consistency

- All updated docs use consistent naming for the three new csprojs.
- Cross-doc references (architecture → module-layout → diagrams → per-component descriptions) form a coherent narrative without contradictions.
- F5 resolution in module-layout.md (Verification section) and architecture_compliance_baseline.md agree.

### Phase 7 — Architecture compliance

N/A on the code side — no code changes. On the doc side, the docs now accurately describe the architecture rather than the pre-refactor state.

## Baseline Delta

Final state of `architecture_compliance_baseline.md` after this batch:

| Finding | Severity | Status |
|---------|----------|--------|
| F1 — Concrete dependency on GoogleMapsDownloaderV2 | High | Resolved (pre-AZ-309) |
| F2 — ISatelliteDownloader is dead code | High | Resolved (pre-AZ-309) |
| F3 — API endpoint bypasses service layer | Medium | Resolved (AZ-310 + AZ-311) |
| F4 — No physical boundary in Services project | Medium | Resolved (AZ-312 + AZ-313 + AZ-314) |
| F5 — DataAccess documented as importing Common (incorrect) | Low | Resolved (AZ-315) |

**Newly introduced**: none.
**Carried over**: none.
**Resolved this batch**: F5.

## Verdict

**PASS** — all 4 ACs satisfied. Documentation now matches the actual project layout. Architecture compliance baseline is fully closed.