Add pagination to admin user, vendor, and ban lists

Introduces pagination controls and server-side paginated fetching for blocked users, users, and vendors in the admin dashboard. Improves error handling in server API responses and validates order ID in OrderDetailsModal. Updates git-info.json with latest commit metadata.

lib/server-api.ts

@@ -86,8 +86,26 @@ export async function fetchServer<T = unknown>(
     
     // Handle other errors
     if (!res.ok) {
-      const errorData = await res.json().catch(() => ({}));
-      const errorMessage = errorData.message || errorData.error || `Request failed: ${res.status} ${res.statusText}`;
+      let errorData;
+      try {
+        errorData = await res.json();
+      } catch {
+        errorData = {};
+      }
+      
+      // Handle new error format: { success: false, error: { message: "...", code: "..." } }
+      // or old format: { error: "...", message: "..." }
+      let errorMessage: string;
+      if (errorData.error?.message) {
+        errorMessage = errorData.error.message;
+      } else if (typeof errorData.error === 'string') {
+        errorMessage = errorData.error;
+      } else if (errorData.message) {
+        errorMessage = errorData.message;
+      } else {
+        errorMessage = `Request failed: ${res.status} ${res.statusText}`;
+      }
+      
       throw new Error(errorMessage);
     }
 
@@ -96,10 +114,24 @@ export async function fetchServer<T = unknown>(
       return {} as T;
     }
 
-    return await res.json();
+    try {
+      const data = await res.json();
+      return data;
+    } catch (parseError) {
+      // If JSON parsing fails, throw a proper error
+      throw new Error(`Failed to parse response from ${endpoint}: ${parseError instanceof Error ? parseError.message : String(parseError)}`);
+    }
   } catch (error) {
     console.error(`Server request to ${endpoint} failed:`, error);
-    throw error;
+    // Ensure we always throw an Error instance, not an object
+    if (error instanceof Error) {
+      throw error;
+    } else if (typeof error === 'string') {
+      throw new Error(error);
+    } else {
+      const errorStr = error && typeof error === 'object' ? JSON.stringify(error) : String(error);
+      throw new Error(`Request failed: ${errorStr}`);
+    }
   }
 }