[AZ-221] [AZ-222] Add shared runtime helpers

Provide deterministic geometry/time-sync helpers and structured config, error, health, and telemetry primitives for downstream runtime components.

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

_docs/03_implementation/batch_03_cycle1_report.md

@@ -0,0 +1,37 @@
+# Batch Report
+
+**Batch**: 3
+**Tasks**: AZ-221_shared_geometry_time_sync, AZ-222_runtime_config_errors_telemetry
+**Date**: 2026-05-03
+
+## Task Results
+
+| Task | Status | Files Modified | Tests | AC Coverage | Issues |
+|------|--------|----------------|-------|-------------|--------|
+| AZ-221_shared_geometry_time_sync | Done | 5 files | Pass | 2/2 ACs covered | None |
+| AZ-222_runtime_config_errors_telemetry | Done | 7 files | Pass | 2/2 ACs covered | None |
+
+## AC Test Coverage: All covered
+
+| AC Ref | Coverage |
+|--------|----------|
+| AZ-221 AC-1 | `test_wgs84_local_round_trip_is_deterministic` verifies deterministic WGS84/local conversion and metric output. |
+| AZ-221 AC-2 | `test_non_monotonic_timestamps_return_explicit_violation` and `test_time_window_reports_gap_instead_of_dropping_silently` verify explicit time-sync violation results. |
+| AZ-222 AC-1 | `test_missing_production_cache_dir_returns_readiness_failure` verifies missing production settings produce a structured readiness failure. |
+| AZ-222 AC-2 | `test_dependency_error_envelope_has_required_structured_fields` verifies dependency errors include component, category, severity, and retryability. |
+
+## Code Review Verdict: PASS
+
+Review report: `_docs/03_implementation/reviews/batch_03_review.md`
+
+## Auto-Fix Attempts: 0
+
+## Stuck Agents: None
+
+## Verification
+
+- `.venv/bin/python -m black --check src tests e2e/replay` passed.
+- `.venv/bin/python -m ruff check src tests e2e/replay` passed.
+- `.venv/bin/python -m pytest` passed: 17 tests.
+
+## Next Batch: AZ-223_camera_ingest_calibration, AZ-224_mavlink_gcs_gateway, AZ-225_tile_manager_cache_manifest, AZ-227_fdr_event_recorder

_docs/03_implementation/reviews/batch_03_review.md

@@ -0,0 +1,25 @@
+# Code Review Report
+
+**Batch**: AZ-221_shared_geometry_time_sync, AZ-222_runtime_config_errors_telemetry
+**Date**: 2026-05-03
+**Verdict**: PASS
+
+## Findings
+
+| # | Severity | Category | File:Line | Title |
+|---|----------|----------|-----------|-------|
+| - | - | - | - | No findings |
+
+## Review Notes
+
+- AZ-221 AC-1 is satisfied by deterministic WGS84/local conversion, distance, and footprint helpers under `shared/geo_geometry`.
+- AZ-221 AC-2 is satisfied by explicit time-sync violation models and window selection results under `shared/time_sync`.
+- AZ-222 AC-1 is satisfied by runtime profile validation and structured readiness failure envelopes under `shared/config`.
+- AZ-222 AC-2 is satisfied by reusable `ErrorEnvelope` / `ResultEnvelope` models plus FDR-safe health and metrics metadata.
+- The batch stays within shared foundation ownership and does not introduce component policy decisions.
+
+## Verification
+
+- `.venv/bin/python -m black --check src tests e2e/replay` passed.
+- `.venv/bin/python -m ruff check src tests e2e/replay` passed.
+- `.venv/bin/python -m pytest` passed: 17 tests.

_docs/_autodev_state.md

@@ -9,6 +9,6 @@ tracker: jira
 sub_step:
   phase: 1
   name: batch-loop
-  detail: "batch 2: AZ-220_shared_runtime_contracts"
+  detail: "batch 3: AZ-221_shared_geometry_time_sync, AZ-222_runtime_config_errors_telemetry"
 retry_count: 0
 cycle: 1