idz: Hoist userdb code

src/idz/userdb/decoder/createAutoTeam.ts

@@ -0,0 +1,14 @@
+import { CreateAutoTeamRequest } from "../request/createAutoTeam";
+import { AimeId } from "../../../model";
+
+createAutoTeam.msgCode = 0x007b;
+createAutoTeam.msgLen = 0x0010;
+
+export function createAutoTeam(buf: Buffer): CreateAutoTeamRequest {
+  return {
+    type: "create_auto_team_req",
+    aimeId: buf.readUInt32LE(0x0004) as AimeId,
+    field_0008: buf.readUInt32LE(0x0008),
+    field_000C: buf.readUInt8(0x000c),
+  };
+}