Feature: Integrate GitHub App with FastAPI backend for @euni-bot /fix

[Wes1eyyy]

Overview

Enable organization members to trigger automated code fixes by commenting @euni-bot /fix on issues or PRs. The GitHub App webhook should call the FastAPI backend, run the euni agent for code repair, and open a PR with results.

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Tasks

• Configuration

  • Add GH_APP_ID, GH_WEBHOOK_SECRET, GH_APP_PRIVATE_KEY, BOT_HANDLE, ORG_NAME to .env and load via configuration/github.py.

• Utils

  • Implement signature verification, JWT creation, and command parsing in utils/github_sec.py.

• GitHub Service Layer

  • Add git/github_service.py for:

    • Installation token retrieval
    • Org membership check
    • Comment posting/updating
    • Branch creation + commit + PR creation

• AI Fix Logic

  • Add app/services/euni_fix.py with run_euni_fix(repo_dir, args) (placeholder for real AI/MCP integration).

• Webhook Route

  • Add app/routes/github_webhook.py:

    • Validate webhook signature
    • Detect @BOT_HANDLE /fix
    • Post placeholder comment
    • Run background fix → commit → PR → update comment

• App Initialization

  • Register webhook router in app/__init__.py.

• Deployment

  • Update docker-compose.yml with env vars and uvicorn command.
  • Configure Nginx reverse proxy for /github/webhook with SSL.

• Testing

  • Add tests/app/test_github_webhook.py (mock payload, check command parsing & response flow).

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Acceptance Criteria

• When a member comments @euni-bot /fix:

  • Bot posts a “started” placeholder.
  • After fix, bot updates comment with PR link and short summary.

• Only members of ORG_NAME can trigger the command.

• Errors are handled gracefully with a failure comment.