Add caffeinate plugin to prevent blocking sleep commands

This plugin intercepts sleep commands in Bash and prompts Claude to use
background execution (run_in_background: true) instead. This keeps the
session responsive during long-running operations.

Features:
- Blocks sleep commands with helpful retry message
- Allows sleep in quoted strings (false positive prevention)
- Catches sleep in compound commands (&&, ||, ;) and loops
- Allows background commands through (run_in_background: true)

🏠 Remote-Dev: homespace

Claude-Generated-By: Claude Code (cli/claude-opus-4-5=100%)
Claude-Steers: 6
Claude-Permission-Prompts: 0
Claude-Escapes: 0

.claude-plugin/marketplace.json

@@ -328,6 +328,17 @@
       "category": "productivity",
       "homepage": "https://github.com/anthropics/claude-plugins-official/tree/main/plugins/code-simplifier"
     },
+    {
+      "name": "caffeinate",
+      "description": "Prevents blocking sleep commands by intercepting them and prompting Claude to use background execution instead. Keeps your session responsive during long-running operations.",
+      "author": {
+        "name": "Anthropic",
+        "email": "support@anthropic.com"
+      },
+      "source": "./plugins/caffeinate",
+      "category": "productivity",
+      "homepage": "https://github.com/anthropics/claude-plugins-official/tree/main/plugins/caffeinate"
+    },
     {
       "name": "explanatory-output-style",
       "description": "Adds educational insights about implementation choices and codebase patterns (mimics the deprecated Explanatory output style)",