✨ Enhance meetup association and permissions management

- 🔍 Added `resolveInScope` method to `ResolvesEntities` for scoped entity resolution with stricter control.
- 👥 Introduced `AddMeetupToMineTool` MCP tool for adding external meetups to "My Meetups."
- 🛠️ Updated `ListMyMeetupsTool` and `ShowMyMeetupTool` to include both created and joined meetups.
- 📚 Updated `Meetup` model with `associatedWith` scope for querying user-related meetups.
- ✅ Expanded feature tests for meetup membership, creator permissions, and scoped tool usage.
- 🛡️ Unified access checks across Livewire and APIs to restrict editing meetup details to creators or super-admins.
- 🔗 Registered `AddMeetupToMineTool` in `EinundzwanzigServer`.

resources/views/livewire/meetups/create.blade.php

@@ -94,10 +94,8 @@ class extends Component {
 
         $meetup = Meetup::create($validated + ['created_by' => auth()->id()]);
 
-        // Attach the creator to meetup_user so they appear under "My-Meetups"
-        // and pass the new edit-permission check (which is based on this pivot,
-        // not on created_by).
-        $meetup->users()->attach(auth()->id());
+        // Der Ersteller wird über das Meetup::created-Model-Event automatisch als Leiter
+        // in die meetup_user-Pivot eingetragen (einheitlich mit MCP und REST-API).
 
         if ($this->logo) {
             $meetup