**Motivations :**
- Remove manual authentication button as requested by user
- Restore automatic WebAuthn triggering like before
- Maintain seamless user experience without manual intervention
- Keep WebAuthn security while ensuring automatic flow
**Modifications :**
- Removed manual authentication button and click handler
- Restored automatic WebAuthn triggering in handleMainPairing()
- Simplified authentication flow to be automatic on page load
- Maintained proper error handling and user feedback
- Kept spinner and status messages for user feedback
**Pages affectées :**
- src/pages/home/home.ts: Restored automatic WebAuthn authentication flow