Refactor edge agent test with waitFor utility and update GitHub Actions workflow

- Introduced `waitFor` utility in edge agent tests for more reliable condition polling.
- Adjusted test assertions to use `waitFor` for verifying agent polling activity.
- Added separate GitHub Actions jobs for `edge-agent` and `edge-broker` to improve test isolation.

.github/workflows/tests.yml

@@ -43,6 +43,52 @@ jobs:
           if-no-files-found: warn
           retention-days: 1
 
+  edge-agent:
+    name: Edge Agent (required)
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+          cache-dependency-path: services/edge-agent/package-lock.json
+
+      - name: Install dependencies
+        working-directory: services/edge-agent
+        run: npm ci
+
+      - name: Run edge agent tests
+        working-directory: services/edge-agent
+        run: npm test
+
+  edge-broker:
+    name: Edge Broker (required)
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+          cache-dependency-path: services/edge-broker/package-lock.json
+
+      - name: Install dependencies
+        working-directory: services/edge-broker
+        run: npm ci
+
+      - name: Run edge broker tests
+        working-directory: services/edge-broker
+        run: npm test
+
   integration:
     name: Integration (advisory)
     runs-on: ubuntu-latest