Add re-review trigger >20LOC change appears after approval #3

	name: Reapproval Gate

	# Run only when new commits are pushed to an open PR, or when a review is
	# submitted (so the gate re-evaluates after a fresh approval).
	on:
	pull_request:
	types: [synchronize]
	pull_request_review:
	types: [submitted]

	# Least-privilege token: read code, write pull-request reviews/checks.
	permissions:
	contents: read
	pull-requests: write

	jobs:
	reapproval-gate:
	name: reapproval-gate
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.11'

	- name: Run unit tests for gate logic
	run: python .github/scripts/test_reapproval_gate.py

	- name: Run reapproval gate
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	GITHUB_REPOSITORY: ${{ github.repository }}
	PR_NUMBER: ${{ github.event.pull_request.number }}
	MAIN_BRANCH: main
	run: python .github/scripts/reapproval_gate.py

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