chore: reorder CI steps in test-ui.yml for clarity and update AGENTS.md to reflect the change

Author: tisoap

.github/workflows/test-ui.yml

@@ -14,11 +14,11 @@ jobs:
         with:
           node-version: 26.3.1
 
-      - name: Install Playwright
-        run: npm run install-chromium
-
       - name: Install dependencies
         run: npm ci
 
+      - name: Install Playwright
+        run: npm run install-chromium
+
       - name: Run tests with coverage
         run: npm run test:coverage

AGENTS.md

@@ -100,7 +100,7 @@ dist/                    # Build output (gitignored in dev; published to npm)
 - Stories live in `src/stories/`; primary file: `SmartEdge.stories.tsx`.
 - Demo fixtures and `demoRegistry` live in `src/demos/` and are shared with the Docusaurus `<FlowDemo />` component.
 - `GraphWrapper` wraps flows with `data-testid="graph-wrapper"`.
-- CI (`.github/workflows/test-ui.yml`): Node 26.3.1 → `install-chromium` → `npm ci` → `npm run test-storybook`.
+- CI (`.github/workflows/test-ui.yml`): Node 26.3.1 → `npm ci` → `install-chromium` → `npm run test-storybook`.
 
 When adding behavior, prefer extending existing stories or adding a focused story over introducing a parallel test harness.