ci: Add GitHub Actions test workflow

[raifdmueller]

Summary

Adds automated test execution on Pull Requests via GitHub Actions.

Changes

• Add .github/workflows/test.yml workflow
• Tests run on every PR and push to main
• Uses uv for dependency management
• Runs ruff check for linting
• Runs pytest for tests
• Fix: Pass attributes parameter to _parse_elements method (was causing ruff F821 error)

Workflow Steps

1. Checkout code
2. Install uv via astral-sh/setup-uv@v4
3. Install Python 3.12
4. Install dependencies with uv sync
5. Run linting with uv run ruff check
6. Run tests with uv run pytest

Test plan

• Tests pass locally (70 tests)
• Linting passes locally
• GitHub Actions workflow runs successfully on this PR

Closes #23

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR adds automated CI testing via GitHub Actions and fixes a linting error in the AsciiDoc parser. The workflow runs on every push to main and on pull requests, executing both linting and test suites.

Changes:

• Add GitHub Actions workflow for automated testing with uv dependency management
• Fix bug where attributes parameter wasn't passed to _parse_elements method (ruff F821 error)
• Improve code style with proper import ordering and whitespace cleanup in tests

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
.github/workflows/test.yml	New CI workflow that runs ruff linting and pytest on PRs and main branch pushes
src/mcp_server/asciidoc_parser.py	Fixes missing attributes parameter in _parse_elements call and removes problematic locals() check
tests/test_asciidoc_parser.py	Reorders imports to follow Python conventions and removes trailing whitespace

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