🐛 Authentication Snackbar Bug

Problem: Authentication snackbars appear at wrong times with vague messages.

Specific Issues Found:

1. Google Sign-In Cancel Workflow

• Progress bar takes too long to cancel when user cancels Google sign-in

• Shows generic "authentication failure, may be..." message

• Should immediately stop progress and show appropriate message or no message at all

2. Wrong Password Entry

• Same generic "authentication failure, may be..." snackbar appears

• Should show specific message like "Incorrect password. Please try again."

3. Unregistered User

• Same generic snackbar for users who aren't registered

• Should show "Account not found. Please sign up or check your email."

Current Problems:

• Snackbars show when user doesn't expect them

• Messages are unclear ("Authentication error" vs "Sign-in failed. Please try again.")

• Users don't know what happened or what to do

• Same generic message for different error types

• Progress indicators don't respond properly to user cancellation

• Generic "authentication failure, may be..." used for ALL authentication cases

Fix Requirements:

1. Timing: Only show snackbars after user auth actions

2. Messages: Every authentication case must have specific, helpful messages:

   • Google cancel: No snackbar or "Sign-in cancelled"

   • Wrong password: "Incorrect password. Please try again."

   • Unregistered user: "Account not found. Please sign up or check your email."

   • Apple Sign-In issues: Specific Apple-related messages

   • Network issues: "Connection failed. Please check your internet."

   • Server errors: "Server temporarily unavailable. Please try again later."

   • NO generic "authentication failure, may be..." messages allowed

3. Progress bars: Immediately respond to user cancellation

4. Context: Tell users exactly what happened and next steps

5. Comprehensive coverage: Review ALL authentication flows and error cases

Success Criteria:

• ✅ Progress bar immediately stops when Google sign-in is cancelled

• ✅ Every authentication error type shows specific, helpful messages

• ✅ Complete elimination of generic "authentication failure, may be..." messages

• ✅ Users understand what to do next for each error type

• ✅ Snackbars only appear at appropriate times

• ✅ All authentication flows (Google, Apple, Email, etc.) have proper error handling

Time: 2-3 hours