Julian Pawlowski c316d5deef refactor: resolve circular imports and enhance documentation ... This commit completes multiple refactoring efforts and documentation improvements: Code Structure Changes: - Move round_to_nearest_quarter_hour() from sensor/helpers.py to average_utils.py - Resolve circular import between price_utils.py and sensor/helpers.py - Split api.py into api/ package (client.py, queries.py, exceptions.py, helpers.py) - Split coordinator.py into coordinator/ package (core.py, cache.py, listeners.py, etc.) - Move period_utils/ to coordinator/period_handlers/ for better organization - All lint checks passing (no PLC0415 local import warnings) Documentation Additions: - Add docs/development/architecture.md with Mermaid diagrams (end-to-end flow, cache coordination) - Add docs/development/timer-architecture.md (comprehensive 3-timer system documentation) - Add docs/development/caching-strategy.md (4-layer cache system with invalidation logic) - Update docs/development/README.md with cross-references - Update AGENTS.md with new module structure and patterns Smart Boundary Tolerance: - Implement ±2 second tolerance for quarter-hour rounding - Prevents premature interval switching during HA restarts (14:59:30 stays at 14:45) - Enables boundary snapping for timer jitter (14:59:58 → 15:00) Atomic Midnight Coordination: - Add _check_midnight_turnover_needed() for race-free midnight handling - Coordinate Timer #1 (HA DataUpdateCoordinator) with Timer #2 (quarter-hour refresh) - Whoever runs first performs turnover, other skips gracefully Timer Optimization: - Change timer scheduling from second=1 to second=0 (absolute-time scheduling) - Document load distribution rationale (unsynchronized API polling prevents thundering herd) - Comprehensive explanation of 3 independent timers and their coordination Impact: Cleaner code structure with resolved circular dependencies, comprehensive documentation of timer and caching systems, and improved reliability during boundary conditions and midnight turnovers. All changes are developer-facing improvements with no user-visible behavior changes.		2025-11-18 17:32:36 +00:00
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__init__.py	refactor: resolve circular imports and enhance documentation	2025-11-18 17:32:36 +00:00
client.py	refactor: resolve circular imports and enhance documentation	2025-11-18 17:32:36 +00:00
exceptions.py	refactor: resolve circular imports and enhance documentation	2025-11-18 17:32:36 +00:00
helpers.py	refactor: resolve circular imports and enhance documentation	2025-11-18 17:32:36 +00:00
queries.py	refactor: resolve circular imports and enhance documentation	2025-11-18 17:32:36 +00:00