Fix #180: null safety violation in ResetPasswordPage by adding backen…

[Karelaking]

📝 Description

Prevent crashes in ResetPasswordPage by guarding Supabase auth calls when the backend is unavailable (demo mode or missing env).

🎯 Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 📚 Documentation update
• 🎨 UI/UX improvement
• ⚡ Performance improvement
• ♿ Accessibility improvement
• 🔧 Refactoring

🔗 Related Issues

Closes #

📋 Changes Made

• Guard supabase.auth calls when backend is unavailable
• Show clear error messaging for demo/misconfigured environments
• Change 3

🧪 Testing

• Unit tests added/updated
• Tested on desktop
• Tested on mobile
• Manual testing completed

Testing Steps:

1. Not run (not requested)

🎨 Screenshots/Demo

📦 Dependencies

• No new dependencies
• New dependencies added (list below)
  • dependency-name@version

✅ Checklist

Code Quality

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I ran npm run lint and fixed all issues

Testing & Functionality

• I have tested my changes thoroughly
• New and existing tests pass locally with my changes
• I have added tests that prove my fix is effective or my feature works

Documentation

• I have updated the documentation accordingly
• I have updated the README if needed
• I have added/updated inline comments where necessary

Git & Commits

• My commits have clear, descriptive messages
• My branch is up to date with the base branch
• I have not included unnecessary commits

Breaking Changes

• This PR does not introduce breaking changes
• I have documented any breaking changes clearly

📝 Additional Context

🔍 Reviewer Notes

🚀 Deployment Notes

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[github-actions]

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[Karelaking]

i have done my, please review it and let me know if their is any problem.

[Copilot]

Pull request overview

Prevents crashes in ResetPasswordPage by guarding Supabase auth calls when running in demo mode or without backend configuration.

Changes:

• Import and use isBackendAvailable alongside supabase to gate backend operations.
• Add early-return guards in useEffect (session check) and password update submit handler.
• Surface clearer user-facing messaging when password reset is unavailable.

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