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/Models/AiSetting.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class AiSetting extends Model
+{
+    protected $table = 'ai_settings';
+
+    protected $fillable = ['ollama_url', 'ollama_model'];
+
+    public static function get(): self
+    {
+        return static::firstOrCreate([], [
+            'ollama_url'   => 'http://192.168.30.172:11434',
+            'ollama_model' => 'llama3.2-vision',
+        ]);
+    }
+}