fix: load maxAccounts from config on frontend init

The data store's fetchVersion() was never called, so maxAccounts stayed
at the default value of 10. Consolidated into the global store's
fetchVersion() which is called on init.

Co-Authored-By: Claude <noreply@anthropic.com>

public/js/data-store.js

@@ -136,24 +136,6 @@ document.addEventListener('alpine:init', () => {
             }
         },
 
-        async fetchVersion(password) {
-            try {
-                const { response } = await window.utils.request('/api/config', {}, password);
-                if (response.ok) {
-                    const data = await response.json();
-                    if (data.version) {
-                        Alpine.store('global').version = data.version;
-                    }
-                    // Store maxAccounts from config
-                    if (data.config && typeof data.config.maxAccounts === 'number') {
-                        this.maxAccounts = data.config.maxAccounts;
-                    }
-                }
-            } catch (error) {
-                console.warn('Failed to fetch version:', error);
-            }
-        },
-
         async performHealthCheck() {
             try {
                 // Get password from global store