chore(ci): add Claude Code Action for auto PR review #1

	name: Claude Code Review

	# Triggers:
	# - pull_request opened/synchronize/reopened -> automatic first-pass review
	# - issue_comment / pull_request_review_comment containing @claude -> on-demand answer
	on:
	pull_request:
	types: [opened, synchronize, reopened]
	issue_comment:
	types: [created]
	pull_request_review_comment:
	types: [created]

	permissions:
	contents: read
	pull-requests: write
	issues: write

	jobs:
	claude:
	# Skip Dependabot PRs (dep bumps rarely benefit from LLM review and burn API budget).
	# Skip fork PRs (GITHUB_TOKEN can't write to forks, so the action would run and silently fail).
	# For comment events, skip ones authored by bots to avoid reply-loops with other integrations.
	if: >-
	!(github.event_name == 'pull_request' && (
	github.event.pull_request.user.login == 'dependabot[bot]' \|\|
	github.event.pull_request.head.repo.fork == true
	)) &&
	!(github.event.comment != null && endsWith(github.event.comment.user.login, '[bot]'))
	runs-on: ubuntu-latest
	timeout-minutes: 15
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- uses: anthropics/claude-code-action@v1
	with:
	anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
	trigger_phrase: '@claude'
	# Pin to Opus 4.6; drop --max-turns lower if budget gets tight.
	claude_args: --model claude-opus-4-6 --max-turns 5

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