Update server URL handling and improve logging

- Changed the server URL from 'http://localhost:8000' to 'http://127.0.0.1:17493' in the server store and connection form.
- Enhanced server startup logging to display the dynamically assigned server URL.
- Updated server management logic in main.rs to reflect the new port configuration and improve orphaned process handling.

app/src/stores/serverStore.ts

@@ -18,7 +18,7 @@ interface ServerStore {
 export const useServerStore = create<ServerStore>()(
   persist(
     (set) => ({
-      serverUrl: 'http://localhost:8000',
+      serverUrl: 'http://127.0.0.1:17493',
       setServerUrl: (url) => set({ serverUrl: url }),
 
       isConnected: false,