test: update all tests for v1.0 API

- Use Model::mistral_small_latest() instead of enum variants
- Use Model::mistral_embed() instead of EmbedModel::MistralEmbed
- Use serde_json::json!() for tool parameter schemas
- Update ChatParams for Option<f32> temperature field
- Update streaming test comments for new delta.content type

tests/v1_constants_test.rs

@@ -6,26 +6,19 @@ use mistralai_client::v1::{
 };
 
 #[test]
-fn test_model_constant() {
+fn test_model_constants() {
     let models = vec![
-        Model::OpenMistral7b,
-        Model::OpenMixtral8x7b,
-        Model::OpenMixtral8x22b,
-        Model::OpenMistralNemo,
-        Model::MistralTiny,
-        Model::MistralSmallLatest,
-        Model::MistralMediumLatest,
-        Model::MistralLargeLatest,
-        Model::MistralLarge,
-        Model::CodestralLatest,
-        Model::CodestralMamba,
+        Model::mistral_small_latest(),
+        Model::mistral_large_latest(),
+        Model::open_mistral_nemo(),
+        Model::codestral_latest(),
     ];
 
     let client = Client::new(None, None, None, None).unwrap();
 
     let messages = vec![ChatMessage::new_user_message("A number between 0 and 100?")];
     let options = ChatParams {
-        temperature: 0.0,
+        temperature: Some(0.0),
         random_seed: Some(42),
         ..Default::default()
     };