fix: use specific data-testid selectors in project switcher assertions

Replace generic getByRole('button', { name: /.../ }) selectors with specific
getByTestId('project-switcher-project-') to avoid strict mode
violations where the selector resolves to multiple elements (project switcher
button and sidebar button).

Fixes failing E2E tests:
- feature-manual-review-flow.spec.ts
- new-project-creation.spec.ts
- open-existing-project.spec.ts

apps/ui/tests/features/feature-manual-review-flow.spec.ts

@@ -130,8 +130,8 @@ test.describe('Feature Manual Review Flow', () => {
       await page.waitForTimeout(300);
     }
 
-    // Verify we're on the correct project (project name appears in sidebar button)
-    await expect(page.getByRole('button', { name: new RegExp(projectName) })).toBeVisible({
+    // Verify we're on the correct project (project switcher button shows project name)
+    await expect(page.getByTestId(`project-switcher-project-${projectName}`)).toBeVisible({
       timeout: 10000,
     });
 

apps/ui/tests/projects/new-project-creation.spec.ts

@@ -77,8 +77,8 @@ test.describe('Project Creation', () => {
     }
 
     // Wait for project to be set as current and visible on the page
-    // The project name appears in the sidebar project selector button
-    await expect(page.getByRole('button', { name: new RegExp(projectName) })).toBeVisible({
+    // The project name appears in the project switcher button
+    await expect(page.getByTestId(`project-switcher-project-${projectName}`)).toBeVisible({
       timeout: 15000,
     });
 

apps/ui/tests/projects/open-existing-project.spec.ts

@@ -156,9 +156,9 @@ test.describe('Open Project', () => {
     }
 
     // Wait for a project to be set as current and visible on the page
-    // The project name appears in the sidebar project selector button
+    // The project name appears in the project switcher button
     if (targetProjectName) {
-      await expect(page.getByRole('button', { name: new RegExp(targetProjectName) })).toBeVisible({
+      await expect(page.getByTestId(`project-switcher-project-${targetProjectName}`)).toBeVisible({
         timeout: 15000,
       });
     }