feat: add google/gemini-3.1-flash-lite-preview #207

	name: Param guard

	# Blocks pull requests that remove a parameter from a model that still exists.
	# Removing a parameter is breaking: every Manifest user who already configured it
	# loses the ability to see or change that setting.
	#
	# Override: a maintainer applies the `allow-param-removal` label to the PR. The
	# label change re-triggers this workflow (see `types` below) and the guard step
	# is skipped, leaving an auditable warning in the checks output.

	on:
	pull_request:
	branches: [main]
	types: [opened, synchronize, reopened, labeled, unlabeled]

	jobs:
	no-param-removals:
	name: No parameter removals
	runs-on: ubuntu-latest
	steps:
	- name: Check out PR
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Fetch base branch
	run: git fetch --no-tags origin "${{ github.base_ref }}"

	- name: Set up Node
	uses: actions/setup-node@v4
	with:
	node-version: "20"
	cache: "npm"

	- name: Install dependencies
	run: npm ci

	- name: Guard against parameter removals
	if: ${{ !contains(github.event.pull_request.labels.*.name, 'allow-param-removal') }}
	run: npm run guard:params
	env:
	BASE_REF: "origin/${{ github.base_ref }}"

	- name: Removal override acknowledged
	if: ${{ contains(github.event.pull_request.labels.*.name, 'allow-param-removal') }}
	run: \|
	echo "::warning::'allow-param-removal' label present — parameter-removal guard intentionally skipped for this PR."

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