[PM-24105] Remove usage of getUserKey on keyService (#16626)

• prefer undefined over null
• obtain required UserId once per method, before branching
• guards moved to beginning of methods
* lift UserId retrieval to occur once during import
* remove redundant userId retrieval

apps/cli/src/tools/send/send.program.ts

@@ -297,6 +297,7 @@ export class SendProgram extends BaseProgram {
           this.serviceContainer.sendService,
           this.serviceContainer.sendApiService,
           this.serviceContainer.environmentService,
+          this.serviceContainer.accountService,
         );
         const response = await cmd.run(id);
         this.processResponse(response);