32b62cbacc
Removes the legacy `CLAUDE_BOTTLE_OAUTH_TOKEN` -> `CLAUDE_CODE_OAUTH_TOKEN` forward in prepare.py. Bottles that need claude-code to authenticate must declare a cred_proxy route with role: "anthropic-base-url" — there is no fallback that hands the token to the agent directly. Drops the now-dead BottleSpec.forward_oauth_token field, the CLI setter that read CLAUDE_BOTTLE_OAUTH_TOKEN from the host env at prepare time, and the forward_oauth_token=False arg in the six pipelock integration tests. PRD 0010 and README updated; the dev ~/claude-bottle.json gains an anthropic-base-url route so the implementer/researcher agents keep working. BREAKING: bottles previously relying on the implicit OAuth forward will now produce an agent environ without any Anthropic credential. Verified with --dry-run: a bottle with no anthropic-base-url route yields env_names: [] (no token at all); a bottle that declares the route yields ANTHROPIC_BASE_URL plus a non-secret placeholder for CLAUDE_CODE_OAUTH_TOKEN.