chore: rename fuel-proxy-next to fuel-proxy in baseUrls

fix: switch from fuel-proxy to fuel-proxy-next (Bifrost upstream broken)

fix: keep openai provider for embeddings, oc for chat models

fix: rename provider from openai to oc (avoids OpenClaw built-in collision)

fix: rename provider to openai and use FUEL_API_KEY

refactor: consolidate providers and add group ack scope

feat: add TOOLS.md with browser and image-gen instructions

fix: remove capabilities key from openai model — breaks config reload on older versions

fix: use internal fuel-proxy URL and env var for openai embedding provider

feat: enable semantic memory search via embeddings passthrough

add contextPruning, sessionMemory, hooks, commands.restart

heartbeat: rotating cadence-based checks pattern

add audio model + tools.media.audio config

zero out costs (billing tracked by OR), update context windows

fix: restore cache config for prompt caching (#2)