feat: add all 8 providers — Anthropic, OpenAI, Google, OpenRouter, DeepSeek, Groq, Mistral, Ollama

fix: increase max_tokens to 4096 — friction detector JSON was being truncated

fix: remove unused claimList variable in friction-detector

refactor: Roundtable-style API key modal + sharper friction detection

fix: update debate-engine to use contradiction instead of blocking

feat: tune friction detector — 4-type taxonomy, lower threshold, catch latent tension

refactor: replace friction taxonomy with contradiction/tension/refinement/convergence

feat: seed RLMLite standalone app from rlm-ai-studio/rlm-lite