agent-platform release v4.178.0

Added

• (operator) Take agent-platform-operator 0.2.x, which mirrors rbac-operator’s admins as organization admins in #1344 by @fiunchinho
• (rbac) Give muster’s MCP-server viewers their own value, musterMcpServerViewers in #1347 by @fiunchinho

Changed

• Move agent instructions to AGENTS.md in #1346 by @marians

Fixed

• (presets) Admit proven NVFP4 Marlin GPUs from 8.6 in #1342 by @teemow

Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.177.5...v4.178.0