Setup Pre-Commit Hooks and CI Pipelines

[MrOrz]

• Added ruff as a dev dependency (uv add --dev ruff) inside ./adk and locked its version in pyproject.toml and uv.lock.
• Configured local pre-commit hooks using husky and lint-staged.
• Set up lint-staged blocks in package.json to properly invoke TS formatting checks via ESLint & Prettier and Python checks via uv run ruff using bash wrappers to handle staged file path context correctly.
• Added a GitHub Actions CI workflow in .github/workflows/ci.yml triggering on pushes/PRs to main. It runs concurrent jobs to validate Node.js (TS/Lint/Formatting) via pnpm and Python components (Ruff format/check) via uv.
• Configured eslint.config.js to ignore the python virtual environment.
• Configured vitest invocation to pass successfully without failing the pipeline if no test cases are currently matched.

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PR created automatically by Jules for task 2951186506235151312 started by @MrOrz

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[gemini-code-assist]

Code Review

This pull request introduces project-wide linting and formatting standards by integrating Husky, lint-staged, and Ruff. It also includes various code cleanups, such as removing unused imports in the Python backend and standardizing formatting across TypeScript and YAML files. Feedback is provided regarding the exclusion of YAML files from Prettier and a potential logic change in the chat cache where switching from nullish coalescing to logical OR might unintentionally overwrite empty string values.

[gemini-code-assist]

It's generally a good practice to format configuration files like docker-compose.yml to ensure consistency across the project. By adding *.yaml and *.yml to .prettierignore, you are excluding all YAML files from formatting. This might be unintentional, especially since docker-compose.yml was modified in this PR with what appear to be formatting changes.

I recommend removing these lines to allow Prettier to format YAML files. You can then add a rule for YAML files to your lint-staged configuration in package.json to automatically format them on commit.

[gemini-code-assist]

The change from the nullish coalescing operator (??) to the logical OR operator (||) alters the behavior for empty strings. If event.author is an empty string (""), ?? would preserve it, while || will replace it with 'writer'.

If an empty string is a valid value for an author, this change introduces a bug. Using ?? is generally safer as it only provides a default for null or undefined, making the code's intent clearer and less prone to unintended side effects with other falsy values (like an empty string). This same issue appears on lines 253 and 269.

Suggested change

	author: event.author || 'writer',
	author: event.author ?? 'writer',