release(v4.8.5): bump framework and eight skills to 4.8.5 in lockstep

Issue #45 A+B: MAM's isolated herdr servers start with restore-on-restart off,
and resume closes the session's own restored empty shell. Not reviewed yet.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.agents/skills/multi-agent-mux-resume/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: multi-agent-mux-resume
 description: "Resume an existing agent (claude, antigravity/agy) conversation by UUID into a herdr session. Reads .mam/agent-sessions.yaml for the saved session/conversation id, spawns (or reuses) a herdr session of the matching name, and runs `claude -r <id>` or `agy --conversation <id>` inside. Use when you want to reattach to a previous session's context, or revive a session whose herdr died but the agent's conversation is still on disk."
-version: 4.8.4
+version: 4.8.5
 author: godopu
 license: MIT
 platforms: [linux, macos]