feat: add just staging shortcut for desktop app against staging relay (#258)

justfile

@@ -143,6 +143,12 @@ proxy-release:
 dev *ARGS:
     cd {{desktop_dir}} && pnpm tauri dev --config src-tauri/tauri.dev.conf.json {{ARGS}}
 
+# Run the desktop app against the internal staging relay (installs deps + builds agent tools automatically)
+staging *ARGS:
+    cd {{desktop_dir}} && pnpm install
+    cargo build --release -p sprout-acp -p sprout-mcp
+    cd {{desktop_dir}} && SPROUT_RELAY_URL="wss://sprout-oss.stage.blox.sqprod.co" pnpm tauri dev {{ARGS}}
+
 # Run the desktop frontend dev server
 desktop-dev:
     cd {{desktop_dir}} && pnpm dev