Metrics #149

	name: Metrics

	# T1-2 — 운영 관측성 메트릭 시계열 수집.
	# 매 CI Fast 완료 시 (workflow_run) + 매일 02:00 KST (cron) 트리거.
	# 산출물: landing/static/metrics/ 안 JSON (시계열 30일 rolling).
	# 짝 트랙: T1-4 SLO 정의 + T1-5 health dashboard.

	on:
	workflow_run:
	workflows: ["CI Fast"]
	types: [completed]
	schedule:
	- cron: "0 17 * * *" # 매일 17:00 UTC = 02:00 KST 다음날
	workflow_dispatch: {}

	concurrency:
	group: metrics-${{ github.ref }}
	cancel-in-progress: false # 시계열 누적이라 중복 실행 허용

	permissions:
	contents: read
	actions: read

	jobs:
	collect:
	runs-on: ubuntu-latest
	timeout-minutes: 10
	steps:
	- uses: actions/checkout@v5
	with:
	fetch-depth: 0 # git log 분석 필요

	- uses: actions/setup-python@v6
	with:
	python-version: "3.12"
	cache: pip

	- name: Install minimal deps
	run: \|
	python -m pip install --upgrade pip
	pip install requests pyyaml

	- name: Collect 7 metrics signals
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: \|
	python -X utf8 .github/scripts/meta/collectMetrics.py \
	--repo "${{ github.repository }}" \
	--output landing/static/metrics/$(date -u +%Y-%m-%d).json

	- name: Aggregate 30-day rolling
	run: \|
	python -X utf8 .github/scripts/meta/aggregateMetrics.py \
	--input-dir landing/static/metrics/ \
	--window 30 \
	--output landing/static/metrics/rolling.json

	- name: Upload metrics artifact
	uses: actions/upload-artifact@v5
	with:
	name: metrics-${{ github.run_id }}
	path: landing/static/metrics/
	retention-days: 90

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