Improve the formatting of tool calls, show thinking, treat Reasoning and Thinking as the same thing (sorry Kant) (#7626)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

crates/goose-server/src/openapi.rs

@@ -21,9 +21,8 @@ use goose::config::declarative_providers::{
 };
 use goose::conversation::message::{
     ActionRequired, ActionRequiredData, FrontendToolRequest, Message, MessageContent,
-    MessageMetadata, ReasoningContent, RedactedThinkingContent, SystemNotificationContent,
-    SystemNotificationType, ThinkingContent, TokenState, ToolConfirmationRequest, ToolRequest,
-    ToolResponse,
+    MessageMetadata, RedactedThinkingContent, SystemNotificationContent, SystemNotificationType,
+    ThinkingContent, TokenState, ToolConfirmationRequest, ToolRequest, ToolResponse,
 };
 
 use crate::routes::recipe_utils::RecipeManifest;
@@ -552,7 +551,6 @@ derive_utoipa!(Icon as IconSchema);
         ActionRequiredData,
         ThinkingContent,
         RedactedThinkingContent,
-        ReasoningContent,
         FrontendToolRequest,
         ResourceContentsSchema,
         SystemNotificationType,