Comprehensive testing and bug fixing before final submission.

[devonwallerson]

Tasks:

• Test all user flows end-to-end
• Test edge cases:
  • Empty states
  • Permission denials
  • Network errors
  • Invalid inputs
• Fix any bugs found
• Test on different Android versions
• Performance testing (large datasets)
• Battery usage testing
• UI/UX polish

Acceptance Criteria:

• All features work correctly
• Edge cases are handled
• No critical bugs
• App performs well
• UI is polished

Dependencies: All previous issues

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