Align frontend env with validation limits and axios plugin.

Flatten share/API config keys, nest validation limits only, and move the HTTP client to plugins/axios.

frontend/src/config/index.ts

@@ -1,29 +1,21 @@
 const env = (key: string): string => {
     const value = import.meta.env[key];
+
     if (value === undefined || value === null) {
         return '';
     }
+
     return String(value);
 };
 
-const envInt = (key: string, fallback: number): number => {
-    const raw = env(key);
-    if (!raw) {
-        return fallback;
-    }
-    const parsed = parseInt(raw, 10);
-    return Number.isFinite(parsed) ? parsed : fallback;
-};
+const envInt = (key: string): number => parseInt(env(key), 10);
 
 export const config = {
-    api: {
-        baseUrl: env('VITE_API_BASE_URL')
-    },
-    share: {
-        clearnetDomain: env('VITE_CLEARNET_DOMAIN'),
-        onionHostname: env('VITE_ONION_HOSTNAME')
-    },
-    limits: {
-        maxImagesPerUpload: envInt('VITE_MAX_IMAGES_PER_UPLOAD', 10)
+    baseUrl: env('VITE_API_BASE_URL'),
+    clearnetDomain: env('VITE_CLEARNET_DOMAIN'),
+    onionHostname: env('VITE_ONION_HOSTNAME'),
+    validation: {
+        maxImagesPerUpload: envInt('VITE_VALIDATION_UPLOAD_MAX_IMAGES_PER_UPLOAD'),
+        uploadMaxViewsMax: envInt('VITE_VALIDATION_UPLOAD_MAX_VIEWS_MAX')
     }
 };