fix: context hook updates and cleanup (#150)

* fix(context-hook): update savings message to reference mem-search skill

Changed "Use claude-mem search" to "Use the mem-search skill" for clarity.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

* chore: delete outdated docs, experiments, and test results

Removed:
- docs/context/ (moved to private/)
- experiment/ (obsolete)
- test-results/ (stale)
- tests/ (outdated)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

* fix(user-message-hook): update support link to Discord community

---------

Co-authored-by: Claude <noreply@anthropic.com>

src/hooks/user-message-hook.ts

@@ -52,7 +52,7 @@ try {
     "\n\n📝 Claude-Mem Context Loaded\n" +
     "   ℹ️  Note: This appears as stderr but is informational only\n\n" +
     output +
-    "\n\n💬 Feedback & Support\nhttps://github.com/thedotmack/claude-mem/discussions/110\n" +
+    "\n\n💬 Community\nhttps://discord.gg/J4wttp9vDu\n" +
     `\n📺 Watch live in browser http://localhost:${port}/\n`
   );