Add transactions page with fuzzy search and success dialog for expenses

Features:
- Created TransactionsPage with mobile-optimized layout
  - Card-based transaction items with status indicators
  - Fuzzy search by description, payee, reference, username, and tags
  - Day filter options (5, 30, 60, 90 days)
  - Pagination support
  - Responsive design for mobile and desktop
- Added getUserTransactions API method to ExpensesAPI
  - Supports filtering by days, user ID, and account type
  - Returns paginated transaction data
- Updated AddExpense component with success confirmation
  - Shows success message in same dialog after submission
  - Provides option to navigate to transactions page
  - Clean single-dialog approach
- Added "My Transactions" link to navbar menu
- Added Transaction and TransactionListResponse types
- Added permission management types and API methods (grantPermission, listPermissions, revokePermission)
- Installed alert-dialog component for UI consistency

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

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