style: fix formatting and clippy type_complexity warning

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Signed-off-by: Brandon Kvarda <brandon.kvarda@databricks.com>

Author: Brandon Kvarda

crates/goose/src/providers/formats/databricks.rs

@@ -1233,10 +1233,7 @@ mod tests {
     fn test_format_messages_with_multiple_metadata_fields() -> anyhow::Result<()> {
         // Test that multiple metadata fields are all preserved
         let mut metadata = serde_json::Map::new();
-        metadata.insert(
-            "thoughtSignature".to_string(),
-            json!("sig_top_level"),
-        );
+        metadata.insert("thoughtSignature".to_string(), json!("sig_top_level"));
         metadata.insert(
             "extra_content".to_string(),
             json!({
@@ -1245,10 +1242,7 @@ mod tests {
                 }
             }),
         );
-        metadata.insert(
-            "custom_field".to_string(),
-            json!("custom_value"),
-        );
+        metadata.insert("custom_field".to_string(), json!("custom_value"));
 
         let message = Message::assistant().with_tool_request_with_metadata(
             "tool1",

crates/goose/src/providers/formats/openai.rs

@@ -16,8 +16,20 @@ use rmcp::model::{
 use serde::{Deserialize, Serialize};
 use serde_json::{json, Value};
 use std::borrow::Cow;
+use std::collections::HashMap;
 use std::ops::Deref;
 
+/// Type alias for tool call data: (id, name, arguments, extra_fields)
+type ToolCallData = HashMap<
+    i32,
+    (
+        String,
+        String,
+        String,
+        Option<serde_json::Map<String, Value>>,
+    ),
+>;
+
 #[derive(Serialize, Deserialize, Debug)]
 struct DeltaToolCallFunction {
     name: Option<String>,
@@ -510,7 +522,7 @@ where
                 yield (None, usage)
             } else if chunk.choices[0].delta.tool_calls.as_ref().is_some_and(|tc| !tc.is_empty()) {
                 // (id, name, arguments, extra_fields) - extra_fields captures all non-standard fields
-                let mut tool_call_data: std::collections::HashMap<i32, (String, String, String, Option<serde_json::Map<String, Value>>)> = std::collections::HashMap::new();
+                let mut tool_call_data: ToolCallData = HashMap::new();
 
                 if let Some(tool_calls) = &chunk.choices[0].delta.tool_calls {
                     for tool_call in tool_calls {

crates/goose/src/providers/openai.rs

@@ -284,8 +284,14 @@ impl Provider for OpenAiProvider {
             log.write(&json_response, Some(&usage))?;
             Ok((message, ProviderUsage::new(model, usage)))
         } else {
-            let payload =
-                create_request(model_config, system, messages, tools, &ImageFormat::OpenAi, false)?;
+            let payload = create_request(
+                model_config,
+                system,
+                messages,
+                tools,
+                &ImageFormat::OpenAi,
+                false,
+            )?;
 
             let mut log = RequestLog::start(&self.model, &payload)?;
             let json_response = self
@@ -402,8 +408,14 @@ impl Provider for OpenAiProvider {
                 }
             }))
         } else {
-            let payload =
-                create_request(&self.model, system, messages, tools, &ImageFormat::OpenAi, true)?;
+            let payload = create_request(
+                &self.model,
+                system,
+                messages,
+                tools,
+                &ImageFormat::OpenAi,
+                true,
+            )?;
             let mut log = RequestLog::start(&self.model, &payload)?;
 
             let response = self