- Restructure hierarchy: Month → Event → Expense (new months table, FK)
- Add MonthHandler with CRUD, monthly reports, dropdown create form
- Events now scoped under months with extended ownership chain
- AI extraction: 16 specific expense categories (Airfare, Meals, etc.)
- UI: category dropdown, button-consistent cards, centered mobile shell on desktop
- Dashboard/month views show claim totals per card
- Description field now mandatory, forms simplified
- Months sorted by name chronologically (latest first)
- New provider architecture with common interface
- Provider selected via AI_PROVIDER env var (gemini/openai/ollama)
- Gemini (default): existing implementation, uses GEMINI_API_KEY
- OpenAI-compatible: uses OPENAI_API_KEY + AI_MODEL + AI_BASE_URL
- Works with OpenAI, Perplexity, Together AI, Groq, etc.
- Ollama: local LLM, uses AI_BASE_URL + AI_MODEL
- Supports llava, bakllava, and other vision models
- deepseek.go renamed to llm.go (cleanup)
- .env.example updated with all AI provider options