feat: add real-time repository analysis and improve AI retrieval

[kunal-yelgate]

Overview

This PR adds real-time deep repository analysis, improves AI retrieval for Groq and Mistral, and introduces a refreshed Cursor-inspired dark UI.

Key Changes

Repository Analysis

• Added bounded analysis of up to 40 prioritized source/configuration files.
• Fetches files concurrently to reduce GitHub API latency.
• Detects common repository entry points.
• Builds an import-based module relationship graph.
• Adds architecture evidence including layers, entry points, relationships, and analysis limitations.
• Displays architecture information in the repository detail page.

Real-Time Retrieval

• Checks repository update timestamps before reusing indexed code.
• Automatically re-indexes when the repository changes.
• Prevents stale code chunks from being retrieved.
• Falls back to lexical scoring when stored embeddings are invalid.

Groq & Mistral

• Keeps AI context within 12,000 characters.
• Limits retrieved evidence to the most relevant code.
• Limits responses to 900 tokens.
• Uses provider-specific default models when required.
• Preserves Groq → Mistral fallback for rate-limit and context-length errors.

Frontend

• Added frontend/DESIGN.md and a shared cursor-theme.css.
• Introduced a GitHub-inspired dark blue visual theme.
• Improved login, dashboard, repository details, chat, and profile UI.
• Added responsive layouts, hover/focus states, animations, and reduced-motion support.
• Improved repository cards, metadata readability, loading states, and AI chat presentation.

Validation

• ✅ Backend compilation and diagnostics
• ✅ Frontend ESLint
• ✅ Frontend production build
• ✅ Git whitespace validation
• ✅ Browser smoke test for login and dark-theme rendering

Overall, this update makes repository analysis fresher and more architecture-aware, while improving AI reliability and the overall frontend experience.

[vercel]

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Project	Deployment	Actions	Updated
frontend	Ready	Preview	Sep 7, 2026 4:51pm UTC

[sonarqubecloud]

Quality Gate failed

Failed conditions
C Security Rating on New Code (required ≥ A)

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