refactor(storage): replace configureStorageApi with additive registration pattern

src/shared/lib/init.js

@@ -15,8 +15,10 @@
  */
 
 import { configureRouter, registerFeatureRoutes, clearRouterConfig, clearFeatureRoutes } from '@zen/core/api';
+import { registerStoragePolicies, clearStorageConfig } from '@zen/core/storage';
 import { validateSession } from '../../features/auth/lib/session.js';
 import { routes as authRoutes } from '../../features/auth/api.js';
+import { storageAccessPolicies } from '../../features/auth/storage-policies.js';
 import { done, warn } from './logger.js';
 
 const ZEN_INIT_KEY = Symbol.for('__ZEN_INITIALIZED__');
@@ -35,6 +37,7 @@ export async function initializeZen() {
 
   configureRouter({ resolveSession: validateSession });
   registerFeatureRoutes(authRoutes);
+  registerStoragePolicies(storageAccessPolicies);
 
   done('ZEN: ready');
 
@@ -45,5 +48,6 @@ export function resetZenInitialization() {
   globalThis[ZEN_INIT_KEY] = false;
   clearRouterConfig();
   clearFeatureRoutes();
+  clearStorageConfig();
   warn('ZEN: initialization reset');
 }