Fixes the Playwright-based integration test that verifies multi-user app
password provisioning for background sync in Astrolabe.
**Root Cause:**
The test was failing to extract the generated app password from Nextcloud's
"New app password" dialog due to overly specific CSS selectors that didn't
match the actual DOM structure.
**Changes:**
- Enhanced network response logging to capture HTTP status codes
- Simplified app password extraction logic:
* Wait for dialog heading using text selector
* Iterate through ALL text inputs on page
* Find password by pattern: contains dashes and length > 20
* Validate extracted password against expected format
- Added format validation with regex before returning password
- Added detailed debug logging for each extraction step
- Improved error messages with screenshot paths
**Testing:**
Test now successfully completes for both alice and bob test users:
- Logs in to Nextcloud
- Generates app password in Security settings
- Extracts password from dialog
- Navigates to Astrolabe settings
- Enters and saves app password
- Verifies "Active" badge appears
- Confirms credentials stored in database
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
