Collapse duplicate MCP surfaces across host variants #2

	name: Validate catalog

	# Blocks a PR that introduces a duplicate surface — the same server listed twice
	# under cosmetic host variants (slack.com/mcp vs mcp.slack.com/mcp) or two labels
	# for one endpoint. Scoped to that failure class via --fail-on, so the 700+
	# pre-existing data-quality findings stay non-blocking (still printed).
	on:
	pull_request:
	paths:
	- "domains/**"
	- "scripts/batch/**"
	- "src/lib/dedup.ts"
	- ".github/workflows/validate-catalog.yml"

	jobs:
	duplicates:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup Bun
	uses: oven-sh/setup-bun@v2

	- name: Install dependencies
	run: bun install --frozen-lockfile

	- name: Dedup unit tests
	run: bun test src/lib/dedup.test.ts

	# The validator pulls in the catalog seed (output/catalog-seeds.json), a
	# gitignored generated file. normalize regenerates it from domains/.
	- name: Generate catalog data
	run: bun run normalize

	- name: Validate catalog for duplicate surfaces
	run: bun run validate:duplicates

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