agent-platform release v4.125.0

Added

• Coding-agent wiring: agent-manager reaches muster, and two passthroughs (giantswarm/agent-platform#916). With OAuth on and muster in the release, the connectivity chart’s agent-manager egress policy admits the muster pods on the muster Service port (muster.service.port, 8090), in both flavors: agent-manager resolves a coding agent’s toolset with muster’s filter_tools as the caller (giantswarm/agent-manager#125). agent-manager.harness.egress (the origins a coding agent on a claude Harness reaches, by Harness name; agent-manager 1.11.0+) and klausGateway.slack.contextBotIDs (the alerting bots whose posts reach the agent’s thread context; klaus-gateway 4.2.0+, giantswarm/klaus-gateway#439) are forwarded only when set, so a release on an older chart, whose closed block refuses the key, renders as before; empty, the component chart’s own default applies.