feat(hooks): integrate Claude Code hooks with plugin system

- Create factory function createClaudeCodeHooksHook()
- Wire tool.execute.before → executePreToolUseHooks
- Wire tool.execute.after → executePostToolUseHooks
- Wire event (session.idle) → executeStopHooks
- Register hooks in src/index.ts
- Claude hooks execute first in handler chain

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

src/hooks/index.ts

@@ -8,3 +8,4 @@ export { createDirectoryAgentsInjectorHook } from "./directory-agents-injector";
 export { createEmptyTaskResponseDetectorHook } from "./empty-task-response-detector";
 export { createAnthropicAutoCompactHook } from "./anthropic-auto-compact";
 export { createThinkModeHook } from "./think-mode";
+export { createClaudeCodeHooksHook } from "./claude-code-hooks";