完成五人团队正式内用最小收口（07-18-small-team-internal-readiness）

client/src/api/approvalRules.ts

@@ -7,8 +7,7 @@ export type ApprovalRoleCode =
   | "finance"
   | "finance_mgr"
   | "administration"
-  | "hr"
-  | "admin";
+  | "hr";
 export type ApprovalOwnerSelfFallbackRoleCode = "finance_mgr";
 
 export type ApprovalRule = {