Dockerfile.with-data: download and unzip RAG data inside image build

Refactor: BM25 RAG, answer normalizer, full-score flow; add rank_bm25; docs

Fix: return only extracted answer to Green; add no-RAG warning; doc why results poor; Dockerfile.with-data for RAG

OpenRouter:

OPENAI_MAX_TOKENS: env default 2048, docs for 64k/65536 in leaderboard

revert: remove max_tokens limit, use model default

limit max_tokens to 2048 for OpenRouter

fix OpenRouter api_key base_url

Dockerfile: install curl for leaderboard healthcheck

Amber: remove config_schema to avoid merged root schema validation failure

Amber manifest: remove secret:true to fix config_schema validation in leaderboard CI

ci: add workflow to build and push Docker image to GHCR

Add Amber manifest and doc for AgentBeats registration

Add PUSH_TO_GITHUB.md with instructions to create repo and push

init