080: Transaction History Backend Integration

[bakarezainab]

#080: Transaction History Backend Integration

Category: [FRONTEND]
Difficulty: ● MEDIUM
Tags: transaction-history, api, pagination, backend, ui

Description

Wire TransactionHistory.tsx to the backend GET /api/audit endpoint and the contract event index (issue #077). Replace all mock/stub data with real paginated API calls. Support server-side filtering by date range, status, employee, and asset, and display contract-level events alongside classic Stellar transactions in a unified timeline.

Acceptance Criteria

• Page fetches real data from the backend audit endpoint with pagination.
• Server-side filters applied on query param change with debounce.
• Contract events (from the indexer) merged into the timeline with a distinct badge.
• Infinite scroll or "Load More" pattern for large datasets.
• Empty state and loading skeleton implemented.