[AZ-284] Autodev baseline + testability refactor

Phase A baseline outputs from /autodev (Steps 1-5):
- Problem & solution docs (_docs/00_problem, _docs/01_solution)
- Codebase documentation (_docs/02_document) incl. architecture,
  module-layout, glossary, system-flows, baseline compliance scan
- Test specs (blackbox, performance, resilience, security, resource,
  traceability matrix)
- Test task decomposition (_docs/02_tasks/todo): AZ-285..AZ-290
- Testability refactor (_docs/04_refactoring/01-testability-refactoring):
  - TC-01 Move DownloadedTileInfoV2 + new ExistingTileInfo to Common.DTO
  - TC-02 Replace dead ISatelliteDownloader API with real signatures
  - TC-03 GoogleMapsDownloaderV2 implements ISatelliteDownloader
  - TC-04 TileService depends on ISatelliteDownloader (mockable)
  - TC-05 DI + endpoints use ISatelliteDownloader
- Test runner scripts (scripts/run-tests.sh, run-performance-tests.sh)
- Autodev state pointer (_docs/_autodev_state.md)

Prepares the codebase for AZ-285..AZ-290 unit/integration test work.

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

_docs/00_problem/input_data/expected_results/results_report.md

@@ -0,0 +1,57 @@
+# Expected Results Report
+
+## Tile Expected Results
+
+| Input ID | Expected Result | Tolerance | Pass/Fail Criterion |
+|----------|----------------|-----------|---------------------|
+| TILE-01 | Tile downloaded and stored | — | HTTP 200; response has: zoomLevel=18, tileSizePixels=256, imageType="jpg", filePath non-empty |
+| TILE-01 (reuse) | Same tile returned from cache | — | Second request returns same tile ID; no re-download |
+
+## Region Expected Results
+
+| Input ID | Expected Result | Tolerance | Pass/Fail Criterion |
+|----------|----------------|-----------|---------------------|
+| REG-01 | Region processes to completion | < 240s | status="completed"; csvFilePath non-empty; summaryFilePath non-empty |
+| REG-02 | Region processes to completion | < 240s | status="completed"; csvFilePath non-empty; summaryFilePath non-empty |
+| REG-03 | Region with stitching completes | < 240s | status="completed"; csvFilePath non-empty; summaryFilePath non-empty; stitched image file > 1024 bytes |
+| REG-01 (tile count) | Tiles downloaded > 0 | — | tilesDownloaded + tilesReused > 0 |
+
+## Route Expected Results
+
+| Input ID | Expected Result | Tolerance | Pass/Fail Criterion |
+|----------|----------------|-----------|---------------------|
+| ROUTE-01 | Route created with interpolated points | — | totalPoints > 2; all intermediate point spacing ≤ 200m; original point count = 2 (first + last) |
+| ROUTE-01 (retrieval) | Route retrievable by ID | — | GET /api/satellite/route/{id} returns same route with all points |
+| ROUTE-02 | Route maps processed | < 180s | mapsReady=true; stitchedImagePath non-empty; csvFilePath non-empty; stitched image > 1024 bytes |
+| ROUTE-03 | Route with ZIP created | < 180s | mapsReady=true; tilesZipPath non-empty; ZIP file > 1024 bytes; ZIP entry count = unique tile count from CSV; ZIP entries start with "tiles/" path prefix; ZIP has directory structure (≥5 path parts) |
+| ROUTE-04 | Complex route maps processed | < 240s | mapsReady=true; uniqueTileCount ≥ 10; stitched image > 1024 bytes |
+| ROUTE-05 | Route with geofences processed | < 240s | mapsReady=true; uniqueTileCount ≥ 10; stitched image > 1024 bytes; geofence regions created |
+| ROUTE-06 | Extended route maps processed | < 360s | mapsReady=true; uniqueTileCount ≥ 20; stitched image > 1024 bytes |
+
+## Point Interpolation Expected Results
+
+| Input | Expected | Tolerance | Pass/Fail Criterion |
+|-------|----------|-----------|---------------------|
+| ROUTE-01 (2 points, ~1.2km apart) | Points interpolated every ~200m | spacing ≤ 200m | Every consecutive point pair has distance ≤ 200m; point_type for first = "original", intermediates = "intermediate", last = "original" |
+| ROUTE-04 (10 points) | Original points: first + last = 2; intermediate points = 8 per pair | — | ValidatePointTypes(route, 1, 1, 8) — 1 first-original, 1 last-original, 8 intermediate |
+| ROUTE-06 (20 points) | Original points: first + last = 2; intermediate points = 18 | — | ValidatePointTypes(route, 1, 1, 18) |
+
+## API Behavior Expected Results
+
+| Scenario | Expected | Pass/Fail Criterion |
+|----------|----------|---------------------|
+| Region request (POST) | Immediate response with pending status | HTTP 200; response.status = "pending" or "processing" |
+| Region poll (GET) | Status transitions correctly | Eventually reaches "completed" or "failed" |
+| Invalid route (< 2 points) | Rejected | HTTP 400 or validation error |
+| Tile reuse | Same tile not re-downloaded | tilesReused > 0 when requesting overlapping regions |
+
+## Timing Constraints
+
+| Operation | Max Duration | Source |
+|-----------|-------------|--------|
+| Single tile download | 30s | HttpClient timeout |
+| Region processing (200m, zoom 18) | 240s | Integration test poll limit |
+| Route map processing (2 points) | 180s | Integration test poll limit |
+| Route map processing (10 points) | 240s | Integration test poll limit |
+| Route map processing (20 points) | 360s | Integration test poll limit |
+| API readiness on startup | 60s | WaitForApiReady (30 retries × 2s) |