chore: rename /bashes to /bg (#232)

src/cli/App.tsx

@@ -2104,8 +2104,8 @@ export default function App({
           return { submitted: true };
         }
 
-        // Special handling for /bashes command - show background shell processes
-        if (msg.trim() === "/bashes") {
+        // Special handling for /bg command - show background shell processes
+        if (msg.trim() === "/bg") {
           const { backgroundProcesses } = await import(
             "../tools/impl/process_manager"
           );

src/cli/commands/registry.ts

@@ -94,7 +94,7 @@ export const commands: Record<string, Command> = {
       return "Downloading agent file...";
     },
   },
-  "/bashes": {
+  "/bg": {
     desc: "Show background shell processes",
     handler: () => {
       // Handled specially in App.tsx to show background processes