🔥 Add initial database migrations, seeders, and factories

🎨 Refactor `Lecturer` model to include new fields and factory usage
🔧 Update `DatabaseSeeder` to handle default seeds
🛠️ Enhance `einundzwanzig` database configuration for SQLite compatibility

database/factories/VoteFactory.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\EinundzwanzigPleb;
+use App\Models\ProjectProposal;
+use App\Models\Vote;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends Factory<Vote>
+ */
+class VoteFactory extends Factory
+{
+    /**
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'einundzwanzig_pleb_id' => EinundzwanzigPleb::factory(),
+            'project_proposal_id' => ProjectProposal::factory(),
+            'value' => fake()->boolean(70),
+            'reason' => fake()->optional(0.3)->sentence(),
+        ];
+    }
+
+    public function approve(): static
+    {
+        return $this->state(fn () => ['value' => true]);
+    }
+
+    public function reject(): static
+    {
+        return $this->state(fn () => ['value' => false]);
+    }
+}