fix: trim whitespace from tool names to prevent invalid tool calls

Some models (e.g. kimi-k2.5) return tool names with leading spaces
like ' delegate_task', causing tool matching to fail.

Add .trim() in transformToolName() and defensive trim in claude-code-hooks.

Fixes #1568

src/hooks/claude-code-hooks/index.ts

@@ -175,7 +175,7 @@ export function createClaudeCodeHooksHook(
       input: { tool: string; sessionID: string; callID: string },
       output: { args: Record<string, unknown> }
     ): Promise<void> => {
-      if (input.tool === "todowrite" && typeof output.args.todos === "string") {
+      if (input.tool.trim() === "todowrite" && typeof output.args.todos === "string") {
         let parsed: unknown
         try {
           parsed = JSON.parse(output.args.todos)