ci: wire typecheck/test/astro-check/gh-pages-build into CI

.github/workflows/checks.yml

@@ -0,0 +1,104 @@
+name: Checks
+
+on:
+  push:
+  pull_request:
+    branches: [main]
+
+concurrency:
+  group: checks-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  typecheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          lfs: true
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: pnpm
+          cache-dependency-path: pnpm-lock.yaml
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Typecheck every package
+        run: pnpm typecheck
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          lfs: true
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: pnpm
+          cache-dependency-path: pnpm-lock.yaml
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Run every package's test suite
+        # Per-package vitest (root vitest binary fails rune tests — never invoke it directly).
+        run: pnpm test
+
+  astro-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          lfs: true
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: pnpm
+          cache-dependency-path: pnpm-lock.yaml
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: astro check (apps/viewer)
+        run: pnpm --filter @archie/viewer run check
+
+  gh-pages-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          lfs: true
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: pnpm
+          cache-dependency-path: pnpm-lock.yaml
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Build Studio + Viewer (verification only — deploy.yml owns the real deploy build)
+        run: bash scripts/build-gh-pages.sh

.gitignore

@@ -57,6 +57,17 @@ pnpm-debug.log*
 .env.*
 !.env.example
 
+# ─────────────────────────────────────────────────────────────
+# Shell-redirect residue (accidental `cmd > --output`-style typos)
+# ─────────────────────────────────────────────────────────────
+/--output
+
+# ─────────────────────────────────────────────────────────────
+# One-shot analysis dumps — no generator script lives in this repo;
+# regenerate with whatever external tool produced it, never commit the output.
+# ─────────────────────────────────────────────────────────────
+/anti-pattern-report.txt
+
 # ─────────────────────────────────────────────────────────────
 # Editor / OS
 # ─────────────────────────────────────────────────────────────