1e5b0dcfca
The manifest key is `egress:` now; finish the rename so the rest of the codebase matches. Files (Dockerfile.egress, claude_bottle/egress.py etc.), classes (Egress, EgressConfig, EgressRoute, EgressPlan, DockerEgress), constants (EGRESS_HOSTNAME, EGRESS_ROUTES, ...), container name prefix (claude-bottle-egress-*), docker network alias (egress), the introspection host (_egress.local), the MCP tool IDs (egress-block, list-egress-routes), and the preflight label all drop the `-proxy` suffix.