Remove LEGACY Nostr client services and related components to streamline the codebase

- Delete Nostr client hub and associated files, including the Nostr store, to eliminate unused functionality.
- Update service tokens and dependency injections to reflect the removal of Nostr client services.
- Adjust notification settings in NotificationSettings.vue to prepare for future implementation of notifications.

src/modules/base/index.ts

@@ -2,7 +2,6 @@ import type { App } from 'vue'
 import type { ModulePlugin } from '@/core/types'
 import { container, SERVICE_TOKENS } from '@/core/di-container'
 import { relayHub } from './nostr/relay-hub'
-import { nostrclientHub } from './nostr/nostrclient-hub'
 
 // Import auth services
 import { auth } from './auth/auth-service'
@@ -27,7 +26,6 @@ export const baseModule: ModulePlugin = {
 
     // Register core Nostr services
     container.provide(SERVICE_TOKENS.RELAY_HUB, relayHub)
-    container.provide(SERVICE_TOKENS.NOSTR_CLIENT_HUB, nostrclientHub)
     
     // Register auth service
     container.provide(SERVICE_TOKENS.AUTH_SERVICE, auth)
@@ -56,10 +54,6 @@ export const baseModule: ModulePlugin = {
       waitForDependencies: false, // VisibilityService has no dependencies
       maxRetries: 1
     })
-    await nostrclientHub.initialize({
-      waitForDependencies: true, // NostrClientHub depends on VisibilityService
-      maxRetries: 3
-    })
     
     console.log('✅ Base module installed successfully')
   },
@@ -69,7 +63,6 @@ export const baseModule: ModulePlugin = {
     
     // Cleanup services
     await relayHub.dispose()
-    await nostrclientHub.dispose()
     await auth.dispose()
     await paymentService.dispose()
     await visibilityService.dispose()
@@ -79,7 +72,6 @@ export const baseModule: ModulePlugin = {
 
   services: {
     relayHub,
-    nostrclientHub,
     auth,
     paymentService,
     pwaService