fix: Resolve compilation errors with FilterOption and type mismatches

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/filter_plugin/mod.rs

@@ -11,9 +11,10 @@ pub mod utils;
 
 use std::collections::HashMap;
 
-#[derive(Debug, Clone, serde::Serialize)]
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize, utoipa::ToSchema)]
 pub struct FilterOption {
     pub name: String,
+    #[schema(value_type = Option<Object>)]
     pub default: Option<serde_json::Value>,
     pub required: bool,
 }