improve interacting with ollama api and models

database/factories/EmbeddingEntryFactory.php

@@ -31,7 +31,7 @@ class EmbeddingEntryFactory extends Factory
             'embedding' => $embedding,
             'embedding_dimensions' => $dimensions,
             'provider' => 'ollama',
-            'model' => config('ai.providers.ollama.models.embeddings.default', 'nomic-embed-text'),
+            'model' => 'nomic-embed-text',
             'tokens' => fake()->numberBetween(1, 100),
         ];
     }

database/factories/EmbeddingUsageEventFactory.php

@@ -25,7 +25,7 @@ class EmbeddingUsageEventFactory extends Factory
             'user_id' => User::factory(),
             'tool' => $tool,
             'provider' => 'ollama',
-            'model' => config('ai.providers.ollama.models.embeddings.default', 'nomic-embed-text'),
+            'model' => 'nomic-embed-text',
             'embedding_dimensions' => (int) config('ai.providers.ollama.models.embeddings.dimensions', 768),
             'input_count' => $inputCount,
             'result_count' => $tool === 'search' ? fake()->numberBetween(0, 10) : $inputCount,