Implement Twos and Threes framework with database and auth support

[miadisabelle]

Core Framework & Infrastructure

• Migrated the project from Vite to Next.js build configuration to improve deployment stability.
• Implemented the "Twos and Threes" (TandT) framework based on Robert Fritz's methodology, including a comprehensive type system.
• Integrated Neon database with a full service layer, seeding scripts, and API routes.
• Added a complete authentication system with auth context, secure API routes, and login UI.

Model Management & AI Integration

• Added import/export functionality allowing users to manage models via JSON files.
• Enhanced the Gemini AI service integration with robust JSON parsing and fallback logic for model generation.
• Implemented a model management suite featuring a creation dialog, list views, and evaluation persistence.
• Enabled evaluation buttons in Analysis mode with improved state debugging and visual indicators.

UI/UX & Branding

• Updated application branding and terminology to "Twos and Threes" across all components.
• Standardized workflow navigation labels to EDITING, ANALYZING, and RESULTS for better clarity.
• Refined the responsive homepage and global styling using Tailwind CSS.
• Introduced project branding assets including a new favicon and SVG logos.

Stability & Performance

• Resolved critical runtime issues by fixing Zustand selector patterns to prevent infinite re-renders.
• Optimized build performance, significantly reducing build times by resolving CSS conflicts and streamlining dependencies.
• Fixed various TypeScript errors, path alias issues, and environment variable handling for server-side modules.

v0 Session

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Project	Deployment	Actions	Updated (UTC)
v0-tand-t	Error		Feb 22, 2026 5:32pm