Fix trailing whitespace formatting issues

- Removed trailing whitespace from all LLM client files
- Fixed formatting issues in gemini.rs, litellm.rs, openai.rs, openrouter.rs, vllm.rs
- Fixed trailing whitespace in embed_text.rs
- All files now comply with cargo fmt standards

Author: aryasoni98

src/llm/gemini.rs

@@ -38,14 +38,14 @@ impl AiStudioClient {
         if address.is_some() {
             api_bail!("Gemini doesn't support custom API address");
         }
-        
+
         let api_key = if let Some(key) = api_key {
             key
         } else {
             std::env::var("GEMINI_API_KEY")
                 .map_err(|_| anyhow::anyhow!("GEMINI_API_KEY environment variable must be set"))?
         };
-        
+
         Ok(Self {
             api_key,
             client: reqwest::Client::new(),

src/llm/litellm.rs

@@ -10,9 +10,9 @@ impl Client {
         _api_config: Option<super::LlmApiConfig>,
     ) -> anyhow::Result<Self> {
         let address = address.unwrap_or_else(|| "http://127.0.0.1:4000".to_string());
-        
+
         let api_key = api_key.or_else(|| std::env::var("LITELLM_API_KEY").ok());
-        
+
         let mut config = OpenAIConfig::new().with_api_base(address);
         if let Some(api_key) = api_key {
             config = config.with_api_key(api_key);

src/llm/openai.rs

@@ -62,7 +62,7 @@ impl Client {
                 api_bail!("OPENAI_API_KEY environment variable must be set");
             }
         }
-        
+
         Ok(Self {
             client: OpenAIClient::with_config(openai_config),
         })

src/llm/openrouter.rs

@@ -10,9 +10,9 @@ impl Client {
         _api_config: Option<super::LlmApiConfig>,
     ) -> anyhow::Result<Self> {
         let address = address.unwrap_or_else(|| "https://openrouter.ai/api/v1".to_string());
-        
+
         let api_key = api_key.or_else(|| std::env::var("OPENROUTER_API_KEY").ok());
-        
+
         let mut config = OpenAIConfig::new().with_api_base(address);
         if let Some(api_key) = api_key {
             config = config.with_api_key(api_key);

src/llm/vllm.rs

@@ -10,9 +10,9 @@ impl Client {
         _api_config: Option<super::LlmApiConfig>,
     ) -> anyhow::Result<Self> {
         let address = address.unwrap_or_else(|| "http://127.0.0.1:8000/v1".to_string());
-        
+
         let api_key = api_key.or_else(|| std::env::var("VLLM_API_KEY").ok());
-        
+
         let mut config = OpenAIConfig::new().with_api_base(address);
         if let Some(api_key) = api_key {
             config = config.with_api_key(api_key);

src/ops/functions/embed_text.rs

@@ -127,7 +127,7 @@ impl SimpleFunctionFactoryBase for Factory {
                             spec.api_type
                         )
                     }
-                },
+                }
             })
         } else {
             spec.api_config.clone()