feat: Build This App — generate missing files and push to GitHub/GitLab

[DealPatrol]

Summary

• "Build This App" button added to every blueprint card on the analysis detail page — replaces the action area with a prominent primary button alongside the existing scaffold download
• BuildAppModal — a 3-step dialog that walks the user through building their app:
  1. Config: choose GitHub or GitLab, enter a repo name (auto-filled from blueprint name), preview the files that will be generated
  2. Building: live SSE progress tracker — Generating → Creating repo → Pushing files (with per-file progress bar)
  3. Done: success state with a direct link to the created repository
• POST /api/build-app — streaming SSE endpoint that:
  • Calls Claude (single request) to generate full working implementations of every missing file + README.md, package.json, .env.example, .gitignore
  • Creates the repo via GitHub API (POST /user/repos) or GitLab API (POST /projects)
  • Pushes each file sequentially, streaming progress events back to the client
  • Returns the repo URL on completion

Test plan

• "Build This App" button appears on each blueprint card in a completed analysis
• Modal opens with repo name pre-filled (sanitized from blueprint name)
• Platform toggle switches between GitHub and GitLab
• "Build & Deploy" initiates the SSE stream and steps advance in real time
• Progress bar on the "Pushing files" step updates per file
• On success, "Open Repository" link opens the correct repo
• Error state shown if repo name conflicts or auth fails
• Modal cannot be closed mid-build (prevents accidental dismissal)
• Works for blueprints with 0 missing files (still generates README etc.)

https://claude.ai/code/session_01RVz4UuHaHpRa8mBWTesduM

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Generated by Claude Code

[vercel]

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Project	Deployment	Actions	Updated (UTC)
repo-app-architect	Error		May 15, 2026 4:27pm
repofuse	Ready	Preview, Comment, Open in v0	May 15, 2026 4:27pm
v0-repo-app-architect	Ready	Preview, Comment, Open in v0	May 15, 2026 4:27pm

[supabase]

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