fix: default auth modal to 'Join IndeeHub' register mode

- Modal now opens in register mode by default instead of login
- Removed the subtitle text under the heading
- Fake form fields update based on mode (Create a password vs Enter)
- Toggle text reads "Already have an account? Sign in" first
- Forgot password only shows in login mode

Co-authored-by: Cursor <cursoragent@cursor.com>

docker-compose.yml

@@ -20,7 +20,7 @@ services:
       context: .
       dockerfile: Dockerfile
       args:
-        CACHEBUST: "23"
+        CACHEBUST: "24"
         VITE_USE_MOCK_DATA: "false"
         VITE_CONTENT_ORIGIN: ${FRONTEND_URL}
         VITE_INDEEHUB_API_URL: /api