Update app configuration and plugin manager for improved environment variable support

- Modify app configuration to use environment variables for base URL and API key, enhancing flexibility for different environments.
- Refactor plugin installation logic in the PluginManager to ensure proper configuration object structure.
- Update base module initialization to correctly access Nostr relay options from the configuration, improving reliability.

src/modules/base/index.ts

@@ -32,7 +32,7 @@ export const baseModule: ModulePlugin = {
     container.provide('pwaService', pwaService)
 
     // Initialize core services
-    await relayHub.initialize(options?.nostr?.relays || [])
+    await relayHub.initialize(options?.config?.nostr?.relays || [])
     await auth.initialize()
     
     console.log('✅ Base module installed successfully')