idz: Hoist userdb code

src/idz/userdb/decoder/loadProfile.ts

@@ -0,0 +1,29 @@
+import {
+  LoadProfileRequest2,
+  LoadProfileRequest3,
+} from "../request/loadProfile";
+import { AimeId } from "../../../model";
+
+loadProfile2.msgCode = 0x0067;
+loadProfile2.msgLen = 0x0020;
+
+export function loadProfile2(buf: Buffer): LoadProfileRequest2 {
+  return {
+    type: "load_profile_req",
+    format: 2,
+    aimeId: buf.readUInt32LE(0x0004) as AimeId,
+    luid: buf.slice(0x0008, buf.indexOf("\0", 0x0008)).toString("ascii"),
+  };
+}
+
+loadProfile3.msgCode = 0x0012f;
+loadProfile3.msgLen = 0x0020;
+
+export function loadProfile3(buf: Buffer): LoadProfileRequest3 {
+  return {
+    type: "load_profile_req",
+    format: 3,
+    aimeId: buf.readUInt32LE(0x0004) as AimeId,
+    luid: buf.slice(0x0008, buf.indexOf("\0", 0x0008)).toString("ascii"),
+  };
+}