Per-member AI model switching: right-click Type badge to change LLM/NN1/NN2

Add runtime NN model switching: LLM, NN1 (Adilbai), NN2 (RayMelius)

Add real ATHEX/NYSE/Euronext prices, OHLCV data for RL agent, merge shared_data into shared/data

Add RL trading strategy, regime-based MDF, dynamic strategy switching

Add CH trader fine-tuning notebook and update default model

Use RayMelius/stockex-analyst as default LLM for CH AI trader

Add clearing house simulation with 10 members (USR01-USR10)

Fix AI model name: use Qwen/Qwen2.5-7B-Instruct (without -1M suffix)

Fix AI Analyst: align model default, actionable provider-not-enabled error

Fix HF Inference API: correct router URL + Qwen2.5 model

Add AI Analyst service: Ollama (local) + HuggingFace (HF Spaces)

Add Frontend button to dashboard; wire frontend into single-container

Add Start/End of Day controls and price history chart

Add NBG security and restrict symbol entry to known securities

Initial commit: StockEx trading platform