Rebrand: AllTech → Agridatalogia (UI, AI identity, logo layout)

Add RAG system, IPM index, language detection fixes, sensor injection fix

Major refactor: fix chat pipeline, vision, memory, BBCH, products, and frontend

some updates on image and long and lat

Many thongs Complete

Feat: Get all products for crop, let LLM choose based on BBCH stage and situation

Phase 2: No product hallucinations - updated prompts and fallbacks

Initial commit: AllTech Crop Science AI