Reapply "Add missing admin action files and navigation links"

This reverts commit 4d515bc400.

src/lib/services/send-currency.ts

@@ -11,10 +11,7 @@ const TYPE_VALUE: Record<Exclude<CurrencyName, "credits">, number> = {
 
 export interface CurrencyDb {
   user: {
-    update(args: {
-      where: { id: number };
-      data: { credits: { increment: number } };
-    }): Promise<unknown>;
+    update(args: { where: { id: number }; data: { credits: { increment: number } } }): Promise<unknown>;
   };
   usersCurrency: {
     upsert(args: {