feat: Add nested proto definition for StudentCountData

Author: yuuki798

campusapis/staff/v1/campus.proto

@@ -835,3 +835,25 @@ message NiceResponse {
   google.protobuf.Any data = 4;
 }
 
+message StudentCountData {
+  message Degree {
+    string degree_name = 1;
+    message Grade {
+      string grade_name = 1;
+      int32 count = 2;
+      message College {
+        string college_name = 1;
+        int32 count = 2;
+        message Major {
+          string major_name = 1;
+          int32 count = 2;
+        }
+        repeated Major majors = 3;
+      }
+      repeated College colleges = 3;
+    }
+    repeated Grade grades = 2;
+  }
+  repeated Degree degrees = 1;
+}
+