Add AI photo import via Ollama Vision

Users can upload a photo of a nail polish bottle; a background queue
job sends it to Ollama (llama3.2-vision at 192.168.30.172:11434),
extracts name, number and manufacturer, then creates the nail polish
and adds it to the user's collection automatically.

- ProcessNailPolishImage job (180s timeout, 2 tries)
- NailPolishImport model + migration (status tracking)
- AiSetting model + migration (Ollama URL + model, admin-configurable)
- NailPolishImportController: upload, status page (auto-refresh every 5s)
- Admin\AiSettingController: configure Ollama connection
- Views: drag-drop upload form, live status page, import history
- Navbar: "Foto importieren" link for all users
- Admin dropdown: "KI-Einstellungen"
- neonail-worker.conf: Supervisor config for the queue worker

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Http/Controllers/Admin/AiSettingController.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\AiSetting;
+use Illuminate\Http\Request;
+
+class AiSettingController extends Controller
+{
+    public function show()
+    {
+        $ai = AiSetting::get();
+        return view('admin.ai.show', compact('ai'));
+    }
+
+    public function update(Request $request)
+    {
+        $request->validate([
+            'ollama_url'   => 'required|url|max:255',
+            'ollama_model' => 'required|string|max:100',
+        ]);
+
+        $ai = AiSetting::get();
+        $ai->ollama_url   = rtrim($request->ollama_url, '/');
+        $ai->ollama_model = $request->ollama_model;
+        $ai->save();
+
+        return redirect()->route('admin.ai.show')->with('success', 'KI-Einstellungen gespeichert.');
+    }
+}