feat: AI Bounty Description Enhancer (#1070)

[597226617]

Summary

Implements AI Bounty Description Enhancer - transforms vague bounty ideas into clear GitHub issues using a multi-LLM approach.

Frontend Implementation

Page: /enhance

Features:

• Input form for vague bounty title/description
• Side-by-side comparison of 3 LLM outputs (Claude, GPT-4o-mini, Gemini)
• Aggregated "best of" result highlighted
• One-click copy to GitHub-ready markdown
• Clear maintainer workflow: review → copy → post issue

Files Changed:

• frontend/src/pages/EnhancePage.tsx - React UI component (109 lines)
• frontend/src/App.tsx - Added /enhance route

Backend API

Note: Backend API (POST /api/enhance-bounty) is deployed separately to a private API repository due to workflow permission constraints.

Backend Features:

• Multi-LLM parallel calls (Claude-3.5-Sonnet, GPT-4o-mini, Gemini-1.5-Flash)
• Graceful fallback to mock mode when no API keys provided
• Returns 3 individual enhancements + 1 aggregated result
• Async/await for optimal performance

Demo Flow

1. Maintainer has vague idea: "Add notifications"
2. Goes to /enhance page
3. Enters rough description
4. Clicks "Enhance"
5. Reviews 3 LLM suggestions + aggregated result
6. Copies markdown
7. Creates GitHub issue with clear acceptance criteria

Wallet

7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU

Closes #1070