fix: fetch version from API on init instead of using hardcoded value

The version was stuck at "1.0.0" because fetchVersion() was only called
when initialLoad was true, but loadFromCache() set initialLoad to false
before fetchData() ran. Now version is fetched unconditionally in the
global store's init().

Fixes #144

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

public/js/store.js

@@ -30,6 +30,23 @@ document.addEventListener('alpine:init', () => {
                     this.activeTab = hash;
                 }
             });
+
+            // 4. Fetch version from API
+            this.fetchVersion();
+        },
+
+        async fetchVersion() {
+            try {
+                const response = await fetch('/api/config');
+                if (response.ok) {
+                    const data = await response.json();
+                    if (data.version) {
+                        this.version = data.version;
+                    }
+                }
+            } catch (error) {
+                console.debug('Could not fetch version:', error);
+            }
         },
 
         // App State