sync: docs, training page fixes, OpenEnv SFT demo notebook

Relocate training notebooks, add BLOG and Google Colab links (SFT + GRPO HF Job), dashboard updates, and eval artifacts

Add GRPO HF job reward/loss curves, dashboard wiring, plot script, and fix grpo_train log_history unwrap

feat: added images, new sft notebook, jobs to do grpo

feat: training results page + SFT Colab notebook

feat: flash-lite for data-gen and flash for UI; remove training page; card tests; --quiet data gen; data/ inspect path; random baseline; GRPO env wrapper; reward fixes (buyer ZOPA, ToM signals); drift + Brier metrics; Bayesian ToM module

fix: gemini retry backoff + tom belief diagnostic logging

feat: streamline parlay for demo mode and add spectator negotiation mechanics

feat: split Gemini 2.5 Flash (demo) and Flash-Lite (data), SFT threshold 0.3, favicon + check_gemini

fix: fixed UI bugs, keyless testing initiated

feat: project setup