[AZ-315] Sync architecture docs after coupling refactor

Phase C of architecture coupling refactor (epic AZ-309). Closes the
last baseline finding (F5 — DataAccess incorrectly documented as
importing Common) and synchronizes the rest of _docs/02_document/
with the post-split project layout from AZ-312/313/314:

- module-layout.md: per-component sections for the three new csprojs
  with explicit ProjectReferences and the no-cross-sibling-reference
  invariant the split enforces.
- architecture.md: components and internal-communication tables
  updated to show calls flow through Common interfaces.
- architecture_compliance_baseline.md: F1..F5 marked Resolved with
  task IDs and commit refs; baseline summary now 0 findings.
- diagrams/components.md, components/03_tile_downloader/description.md,
  modules/{common_interfaces,services_tile_service,
  services_google_maps_downloader,tests_unit}.md updated for the
  split, RateLimitException relocation, and new ITileService methods.

Documentation-only batch — no code, no tests, no build changes.
Epic AZ-309 complete (6 tasks across 3 batches).

Co-authored-by: Cursor <cursoragent@cursor.com>

_docs/02_tasks/_dependencies_table.md

@@ -17,12 +17,12 @@
 
 | Task | Depends On | Points | Status |
 |------|-----------|--------|--------|
-| AZ-310 ServeTile via ITileService | — | 3 | To Do |
-| AZ-311 GetTileByLatLon via ITileService | AZ-310 | 2 | To Do |
-| AZ-312 Split Services into 3 csprojs | AZ-311 | 5 | To Do |
-| AZ-313 Update consumers (Api/Tests) | AZ-312 | 3 | To Do |
-| AZ-314 DI registration split | AZ-313 | 2 | To Do |
-| AZ-315 Documentation sync | AZ-314 | 2 | To Do |
+| AZ-310 ServeTile via ITileService | — | 3 | Done (In Testing) |
+| AZ-311 GetTileByLatLon via ITileService | AZ-310 | 2 | Done (In Testing) |
+| AZ-312 Split Services into 3 csprojs | AZ-311 | 5 | Done (In Testing) |
+| AZ-313 Update consumers (Api/Tests) | AZ-312 | 3 | Done (In Testing) |
+| AZ-314 DI registration split | AZ-313 | 2 | Done (In Testing) |
+| AZ-315 Documentation sync | AZ-314 | 2 | In Progress |
 
 ## Execution Order