docs: improve AGENTS.md with better build/lint/test commands and code style guidelines

AGENTS.md

@@ -29,19 +29,33 @@ markdownlint .                  # Markdown linting
 ### Running Tests
 
 ```bash
-# No formal test framework configured
-# Project uses manual testing with example PDF files in repository
-# To test individual functions, run the CLI commands directly:
-# myice schedule --days 7
-# myice mobile-login
-# myice search --help
+# Manual testing approach - run individual commands to test functionality
+# Test schedule fetching
+myice schedule --days 7
+
+# Test mobile login
+myice mobile-login
+
+# Test specific command help
+myice search --help
+
+# Test web API (run in background)
+poetry run fastapi run myice/webapi.py &
+
+# Run a single pre-commit hook on specific file
+pre-commit run ruff --files myice/myice.py
+pre-commit run ruff-format --files myice/webapi.py
+pre-commit run mypy --files myice/myice.py
 ```
 
 ### Running the Web API
 
 ```bash
-# Or with poetry
+# Run with poetry
 poetry run fastapi run myice/webapi.py --host 127.0.0.1
+
+# Run with uv (alternative)
+uv run fastapi run myice/webapi.py --host 127.0.0.1
 ```
 
 ## Code Style Guidelines
@@ -102,4 +116,6 @@ poetry run fastapi run myice/webapi.py --host 127.0.0.1
 - Maintain backward compatibility when modifying existing APIs
 - Document new features in README.md
 - Always run ruff format and ruff check after editing a python file
-- use conventional commit messages
+- Use conventional commit messages
+- When fixing JSON parsing issues, follow the pattern established in
+  sanitize_json_response function