Feature: Enable programmatically pass in api_key besides reading from env

Author: aryasoni98

src/llm/mod.rs

@@ -127,20 +127,17 @@ pub async fn new_llm_generation_client(
         }
         LlmApiType::OpenAi => Box::new(openai::Client::new(address, api_key, api_config)?)
             as Box<dyn LlmGenerationClient>,
-        LlmApiType::Gemini => Box::new(gemini::AiStudioClient::new(address, api_key)?)
-            as Box<dyn LlmGenerationClient>,
+        LlmApiType::Gemini => {
+            Box::new(gemini::AiStudioClient::new(address, api_key)?) as Box<dyn LlmGenerationClient>
+        }
         LlmApiType::VertexAi => {
             Box::new(gemini::VertexAiClient::new(address, api_key, api_config).await?)
                 as Box<dyn LlmGenerationClient>
         }
-        LlmApiType::Anthropic => {
-            Box::new(anthropic::Client::new(address, api_key).await?)
-                as Box<dyn LlmGenerationClient>
-        }
-        LlmApiType::LiteLlm => {
-            Box::new(litellm::Client::new_litellm(address, api_key).await?)
-                as Box<dyn LlmGenerationClient>
-        }
+        LlmApiType::Anthropic => Box::new(anthropic::Client::new(address, api_key).await?)
+            as Box<dyn LlmGenerationClient>,
+        LlmApiType::LiteLlm => Box::new(litellm::Client::new_litellm(address, api_key).await?)
+            as Box<dyn LlmGenerationClient>,
         LlmApiType::OpenRouter => {
             Box::new(openrouter::Client::new_openrouter(address, api_key).await?)
                 as Box<dyn LlmGenerationClient>
@@ -164,12 +161,14 @@ pub async fn new_llm_embedding_client(
         LlmApiType::Ollama => {
             Box::new(ollama::Client::new(address).await?) as Box<dyn LlmEmbeddingClient>
         }
-        LlmApiType::Gemini => Box::new(gemini::AiStudioClient::new(address, api_key)?)
-            as Box<dyn LlmEmbeddingClient>,
+        LlmApiType::Gemini => {
+            Box::new(gemini::AiStudioClient::new(address, api_key)?) as Box<dyn LlmEmbeddingClient>
+        }
         LlmApiType::OpenAi => Box::new(openai::Client::new(address, api_key, api_config)?)
             as Box<dyn LlmEmbeddingClient>,
-        LlmApiType::Voyage => Box::new(voyage::Client::new(address, api_key)?)
-            as Box<dyn LlmEmbeddingClient>,
+        LlmApiType::Voyage => {
+            Box::new(voyage::Client::new(address, api_key)?) as Box<dyn LlmEmbeddingClient>
+        }
         LlmApiType::VertexAi => {
             Box::new(gemini::VertexAiClient::new(address, api_key, api_config).await?)
                 as Box<dyn LlmEmbeddingClient>