fix: clear plugin commands on reload to prevent duplicates

Add clearPluginCommands() call in loadClawdbotPlugins() to ensure
previously registered commands are cleaned up before reloading plugins.
This prevents command conflicts during hot-reload scenarios.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/plugins/loader.ts

@@ -16,6 +16,7 @@ import {
   type NormalizedPluginsConfig,
 } from "./config-state.js";
 import { initializeGlobalHookRunner } from "./hook-runner-global.js";
+import { clearPluginCommands } from "./commands.js";
 import { createPluginRegistry, type PluginRecord, type PluginRegistry } from "./registry.js";
 import { createPluginRuntime } from "./runtime/index.js";
 import { setActivePluginRegistry } from "./runtime.js";
@@ -178,6 +179,9 @@ export function loadClawdbotPlugins(options: PluginLoadOptions = {}): PluginRegi
     }
   }
 
+  // Clear previously registered plugin commands before reloading
+  clearPluginCommands();
+
   const runtime = createPluginRuntime();
   const { registry, createApi } = createPluginRegistry({
     logger,