9e06127641
End-of-track report covering: - 18 atomic commits across 5 phases - 32 INTERNAL_BROAD_CATCH sites migrated to Result[T] (target met: 32 -> 0) - 1 INTERNAL_OPTIONAL_RETURN site migrated (cold_start_ts -> Result[float]) - 8 INTERNAL_SILENT_SWALLOW sites migrated (spec estimate; audit shows 28 due to nested excepts) - 4 INTERNAL_RETHROW sites classified as legitimate (Pattern 1/3) - 2 known regressions fixed (offload Result unwrap, locked in by 2 new tests) - 5 new Result-pattern tests in test_app_controller_result.py - 890 passed in tier-1 (was 883, +7 from new tests); no regressions Reflections: - test_tool_ask_claim was misattributed in the spec; actual regression was test_execution_sim_live (live_gui test that requires Gemini API - not available in this sandbox) - 20 nested INTERNAL_SILENT_SWALLOW sites introduced by Phase 2 are deferred to a follow-up - Recommendation: next sub-track is result_migration_gui_2 (55 sites in src/gui_2.py) Refs: 18 atomic commits documented in section 6