feat: acquire-core full legacy C corpus (~2066 files, build-verified) + generator + inventory

app/shared/include/msg_layout.h

@@ -0,0 +1,43 @@
+/*
+ * msg_layout.h - 카드 매입 전문(電文) 고정길이 레이아웃 (공유)
+ */
+#ifndef MSG_LAYOUT_H
+#define MSG_LAYOUT_H
+
+#define MSG_TYPE_RECV   "0200"
+#define MSG_TYPE_RESP   "0210"
+#define MSG_TYPE_RECON  "0500"
+
+#define RESP_OK         "0000"
+#define RESP_INVALID    "9001"
+#define RESP_NOMERCH    "9002"
+#define RESP_SYSERR     "9999"
+
+typedef struct {
+    char msg_type[4];
+    char trans_code[6];
+    char merch_id[15];
+    char card_no[16];
+    char approval_no[9];
+    char amount[12];
+    char txn_date[8];
+    char txn_time[6];
+    char inst_month[2];
+    char resp_code[4];
+    char filler[18];
+} acq_msg_t;
+
+#define MSG_ACQ_LEN   ((int)sizeof(acq_msg_t))
+
+#define FLD_MSG_TYPE_LEN   4
+#define FLD_TRANS_CODE_LEN 6
+#define FLD_MERCH_ID_LEN   15
+#define FLD_CARD_NO_LEN    16
+#define FLD_APPROVAL_LEN   9
+#define FLD_AMOUNT_LEN     12
+#define FLD_TXN_DATE_LEN   8
+#define FLD_TXN_TIME_LEN   6
+#define FLD_INST_LEN       2
+#define FLD_RESP_LEN       4
+
+#endif /* MSG_LAYOUT_H */