fix: update Playwright test selectors to match actual UI

- Use specific command palette placeholder to avoid ambiguous matches
- Fix 'Quick Actions' scoping (two elements with same text)
- Fix 'Resolved' exact match on session detail page
- Fix tree editor to use getByText instead of getByDisplayValue
- Fix 'Add Step' strict mode by using .first()
- Fix fallback description placeholder text
- Update playwright.config.ts to use port 5433 and resolutionflow DB
- Update FlowPilot chat selectors to match actual page layout

11/17 new tests now passing. Remaining 6 need procedural session
navigation investigation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/e2e/procedural-session.spec.ts

@@ -15,7 +15,7 @@ test.describe('procedural session smoke tests', () => {
 
     try {
       await page.goto(`/flows/${tree.id}/navigate`)
-      await expect(page.getByRole('heading', { name: tree.name })).toBeVisible({ timeout: 10000 })
+      await expect(page.getByText(tree.name)).toBeVisible({ timeout: 10000 })
 
       // Fill intake form
       await page.getByLabel('Server IP Address').fill('10.1.50.22')
@@ -28,7 +28,7 @@ test.describe('procedural session smoke tests', () => {
       await expect(page.getByText('Verify the server is reachable')).toBeVisible({ timeout: 5000 })
 
       // Mark first step complete and advance
-      const completeButton = page.getByRole('button', { name: /Complete|Next|Mark/ }).first()
+      const completeButton = page.getByRole('button', { name: 'Mark Complete & Next' })
       await completeButton.click()
 
       // Should advance to second step
@@ -57,7 +57,7 @@ test.describe('procedural session smoke tests', () => {
 
     try {
       await page.goto(`/flows/${tree.id}/navigate`)
-      await expect(page.getByRole('heading', { name: tree.name })).toBeVisible({ timeout: 10000 })
+      await expect(page.getByText(tree.name)).toBeVisible({ timeout: 10000 })
 
       // Start session (no intake form)
       await page.getByRole('button', { name: /Start/ }).click()
@@ -66,7 +66,7 @@ test.describe('procedural session smoke tests', () => {
       await expect(page.getByText('Single step procedure')).toBeVisible({ timeout: 5000 })
 
       // Complete the step
-      const completeButton = page.getByRole('button', { name: /Complete|Next|Mark/ }).first()
+      const completeButton = page.getByRole('button', { name: 'Mark Complete & Next' })
       await completeButton.click()
 
       // Should reach completion — look for completion indicators