chore:add GitHub CI for tests

.github/workflows/test-dashboard.yml

@@ -0,0 +1,34 @@
+name: Test Dashboard
+
+on:
+  pull_request:
+    paths:
+      - 'songbird-dashboard/**'
+      - '.github/workflows/test-dashboard.yml'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: songbird-dashboard
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: songbird-dashboard/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Type check
+        run: npx tsc --noEmit
+
+      - name: Run tests
+        run: npm test

.github/workflows/test-firmware.yml

@@ -0,0 +1,29 @@
+name: Test Firmware
+
+on:
+  pull_request:
+    paths:
+      - 'songbird-firmware/**'
+      - '.github/workflows/test-firmware.yml'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: songbird-firmware
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install PlatformIO
+        run: pip install platformio
+
+      - name: Run tests
+        run: pio test -e native

.github/workflows/test-infrastructure.yml

@@ -0,0 +1,34 @@
+name: Test Infrastructure
+
+on:
+  pull_request:
+    paths:
+      - 'songbird-infrastructure/**'
+      - '.github/workflows/test-infrastructure.yml'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: songbird-infrastructure
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: songbird-infrastructure/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Run tests
+        run: npm test