✨ 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`.

app/Mcp/Servers/EinundzwanzigServer.php

@@ -15,6 +15,7 @@ use App\Mcp\Tools\Lecturer\CreateLecturerTool;
 use App\Mcp\Tools\Lecturer\ListMyLecturersTool;
 use App\Mcp\Tools\Lecturer\ShowMyLecturerTool;
 use App\Mcp\Tools\Lecturer\UpdateLecturerTool;
+use App\Mcp\Tools\Meetup\AddMeetupToMineTool;
 use App\Mcp\Tools\Meetup\CreateMeetupTool;
 use App\Mcp\Tools\Meetup\ListMyMeetupsTool;
 use App\Mcp\Tools\Meetup\ShowMyMeetupTool;
@@ -93,6 +94,7 @@ class EinundzwanzigServer extends Server
         // Meetups
         CreateMeetupTool::class,
         UpdateMeetupTool::class,
+        AddMeetupToMineTool::class,
         ListMyMeetupsTool::class,
         ShowMyMeetupTool::class,