docs: Sync all documentation with Claude Code February 2026 features

Update 23 files across all 10 tutorial directories and 7 reference
documents to match the latest Claude Code v2.1+ features and correct
outdated content including model names (4.5→4.6), permission modes,
hook events, CLI syntax, MCP config paths, plugin manifest format,
checkpoint commands, session management, and URLs. Add documentation
for new features: Auto Memory, Remote Control, Web Sessions, Desktop
App, Agent Teams, MCP OAuth, Task List, Sandboxing, and more.

07-plugins/documentation/.claude-plugin/plugin.json

@@ -0,0 +1,9 @@
+{
+  "name": "documentation",
+  "version": "1.0.0",
+  "description": "Comprehensive documentation generation and maintenance",
+  "author": {
+    "name": "Community"
+  },
+  "license": "MIT"
+}