refactor(core): remove provider module, migrate to LLMProvider, add client mode handling, improve serialization error handling, update workspace edition, and clean up conditionals and imports

crates/owlen-core/src/mcp.rs

@@ -1,7 +1,7 @@
+use crate::Result;
 use crate::mode::Mode;
 use crate::tools::registry::ToolRegistry;
 use crate::validation::SchemaValidator;
-use crate::Result;
 use async_trait::async_trait;
 pub use client::McpClient;
 use serde::{Deserialize, Serialize};
@@ -142,6 +142,11 @@ impl McpClient for LocalMcpClient {
     async fn call_tool(&self, call: McpToolCall) -> Result<McpToolResponse> {
         self.server.call_tool(call).await
     }
+
+    async fn set_mode(&self, mode: Mode) -> Result<()> {
+        self.server.set_mode(mode).await;
+        Ok(())
+    }
 }
 
 #[cfg(test)]