[AZ-189] Update coding and testing rules for clarity and consistency

- Revised coding standards to emphasize readability, meaningful comments, and test verification.
- Adjusted test coverage thresholds to 75% for business logic and clarified expectations for test scenarios.
- Enhanced guidelines for handling skipped tests, emphasizing the need for investigation and resolution.
- Updated commit message format and length requirements for better adherence to Git conventions.

Made-with: Cursor

_docs/_autopilot_state.md

@@ -2,8 +2,8 @@
 
 ## Current Step
 flow: existing-code
-step: 6
-name: Run Tests
-status: completed
-sub_step: 0
+step: 9
+name: Implement
+status: in_progress
+sub_step: 1 — Parse and compute batches
 retry_count: 0