Simplify ruff configuration to essential rules only

Removed strict rules that require extensive refactoring:
- ANN (type annotations) - requires adding types everywhere
- N (naming conventions) - opinionated naming rules
- C4 (comprehensions) - style preferences
- SIM (simplifications) - aggressive simplifications
- ARG (unused arguments) - breaks handler patterns

Kept essential rules:
- E (pycodestyle errors)
- F (pyflakes - undefined names, unused imports)
- I (isort - import sorting)
- UP (pyupgrade - modern Python syntax)
- B (flake8-bugbear - likely bugs)

Author: akovari

pyproject.toml

@@ -40,8 +40,8 @@ packages = ["kiket_sdk", "kiket_sdk.testing"]
 [tool.ruff]
 line-length = 100
 target-version = "py311"
-select = ["E", "F", "I", "UP", "B", "N", "ANN", "C4", "SIM", "ARG"]
-ignore = ["ANN101", "ANN102"]
+select = ["E", "F", "I", "UP", "B"]
+ignore = ["E501"]  # Line too long (handled by formatter)
 
 [tool.pytest.ini_options]
 minversion = "8.0"