Add Copilot setup workflow

.github/workflows/copilot-setup-steps.yml

@@ -0,0 +1,117 @@
+name: "Copilot Setup Steps"
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+  pull_request:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+
+jobs:
+  copilot-setup-steps:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      # Engines: Node >=20, npm >=10
+      - name: Set up Node 20
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: "npm"
+
+      - name: Use npm 10 (per package.json engines)
+        run: npm i -g npm@10
+
+      - name: Copy env file
+        run: |
+          if [ -f ".env.example" ]; then
+            cp .env.example .env
+          fi
+
+      - name: Install dependencies
+        run: npm ci
+
+      # ---------- Playwright MCP (system deps + browsers) ----------
+      - name: Install Playwright deps & browsers
+        if: ${{ hashFiles('playwright.config.*') != '' || hashFiles('.playwright-mcp/**') != '' }}
+        run: |
+          npx playwright install-deps
+          npx playwright install
+
+      - name: Cache Playwright browsers
+        if: ${{ hashFiles('playwright.config.*') != '' || hashFiles('.playwright-mcp/**') != '' }}
+        uses: actions/cache@v4
+        with:
+          path: ~/.cache/ms-playwright
+          key: ${{ runner.os }}-playwright-${{ hashFiles('playwright.config.*', '.playwright-mcp/**') }}
+
+      # ---------- Prisma + SQLite (prisma/dev.db) ----------
+      - name: Generate Prisma client (SQLite)
+        env:
+          DATABASE_URL: "file:./prisma/dev.db"
+        run: |
+          mkdir -p prisma
+          npx prisma generate
+
+      - name: Init SQLite schema (db push)
+        env:
+          DATABASE_URL: "file:./prisma/dev.db"
+        run: npx prisma db push --accept-data-loss
+
+      - name: Apply migrations (optional if present)
+        env:
+          DATABASE_URL: "file:./prisma/dev.db"
+        run: |
+          if [ -f "prisma/schema.prisma" ] && [ -d "prisma/migrations" ]; then
+            npx prisma migrate deploy || true
+          fi
+
+      - name: Seed database (uses your npm script)
+        env:
+          DATABASE_URL: "file:./prisma/dev.db"
+        run: |
+          if [ -f "prisma/seed.ts" ]; then
+            npm run db:seed
+          else
+            echo "No prisma/seed.ts found; skipping."
+          fi
+
+      # ---------- Type checking ----------
+      - name: Type check
+        run: npm run type-check
+
+      - name: Save type-check errors to JSON (PowerShell script with Linux fallback)
+        run: |
+          npm run type-check:save || pwsh -File ./scripts/collect-type-errors.ps1
+        shell: bash
+
+      # ---------- Next.js MCP warm start (guarded) ----------
+      - name: Warm-start Next.js dev server (time-boxed)
+        if: ${{ hashFiles('app/**','pages/**','src/app/**','src/pages/**') != '' }}
+        env:
+          NODE_ENV: development
+        run: |
+          (npm run dev & echo $! > /tmp/next_pid) || true
+          sleep 15 || true
+          if [ -f /tmp/next_pid ]; then
+            kill $(cat /tmp/next_pid) || true
+          fi
+
+      # ---------- Optional caches ----------
+      - name: Cache Next.js build artifacts
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.npm
+            .next/cache
+          key: ${{ runner.os }}-next-${{ hashFiles('package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-next-