Clean up Unity and Python tests (#548)
* Test suite audit: remove placeholders, consolidate duplicates, fix stale tests
Python tests:
- Delete 3 vestigial placeholder files (test_script_editing.py, test_find_in_file_minimal.py, test_resources_api.py)
- Remove empty skip-marked tests from test_transport_framing.py and test_logging_stdout.py
- Consolidate DummyMCP/setup_tools() into test_helpers.py
- Fix flaky timing in test_telemetry_queue_worker.py (200ms → 500ms)
- Remove placeholder from test_instance_routing_comprehensive.py
C# tests:
- Consolidate MCPToolParameterTests.cs (755 → 361 lines, -52%)
- Fix 3 tests with stale "future feature" comments - features ARE implemented:
- AutoGrow arrays (Phase 1.2)
- Path normalization (Phase 1.1)
- Bulk array mapping (Phase 3.1)
- Strengthen assertions in ManageGameObjectTests.cs and CommandRegistryTests.cs
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Address code review feedback: remove dead code, fix silent test skips
- Remove unused tools_struct setup in test_edit_normalization_and_noop.py
- Create test texture in EndToEnd_PropertyHandling_AllScenarios so
texture-dependent scenarios (4, 5, 10) actually run instead of silently skipping
- Add texture cleanup in finally block
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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