Initial commit: sap-legacy-webhook-emulator

Reconstruye el Webhook Messenger nativo de SAP B1 (FP2605) para
clientes que aun no estan en esa version: captura eventos via
SBO_SP_PostTransactionNotice, provisiona UserTables OEVC/EVC1/OEVN/EVN1
y despacha CloudEvents al mismo endpoint que el messenger real.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

json/user-tables/OEVC.json

@@ -0,0 +1,87 @@
+{
+  "table": {
+    "TableName": "OEVC",
+    "TableDescription": "Webhook Subscription",
+    "TableType": "bott_NoObject"
+  },
+  "fields": [
+    {
+      "TableName": "@OEVC",
+      "Name": "WebhookURL",
+      "Description": "WebhookURL",
+      "Type": "db_Alpha",
+      "Size": 254,
+      "EditSize": 254
+    },
+    {
+      "TableName": "@OEVC",
+      "Name": "AuthType",
+      "Description": "AuthType",
+      "Type": "db_Alpha",
+      "Size": 1,
+      "EditSize": 1
+    },
+    {
+      "TableName": "@OEVC",
+      "Name": "AuthCred",
+      "Description": "AuthCred",
+      "Type": "db_Alpha",
+      "Size": 254,
+      "EditSize": 254
+    },
+    {
+      "TableName": "@OEVC",
+      "Name": "Handshake",
+      "Description": "Handshake",
+      "Type": "db_Alpha",
+      "Size": 1,
+      "EditSize": 1
+    },
+    {
+      "TableName": "@OEVC",
+      "Name": "VerifyCert",
+      "Description": "VerifyCert",
+      "Type": "db_Alpha",
+      "Size": 1,
+      "EditSize": 1
+    },
+    {
+      "TableName": "@OEVC",
+      "Name": "State",
+      "Description": "State",
+      "Type": "db_Alpha",
+      "Size": 1,
+      "EditSize": 1
+    },
+    {
+      "TableName": "@OEVC",
+      "Name": "WorkMode",
+      "Description": "WorkMode",
+      "Type": "db_Alpha",
+      "Size": 1,
+      "EditSize": 1
+    },
+    {
+      "TableName": "@OEVC",
+      "Name": "LastSentDT",
+      "Description": "LastSentDT",
+      "Type": "db_Date"
+    },
+    {
+      "TableName": "@OEVC",
+      "Name": "LastSentTM",
+      "Description": "LastSentTM",
+      "Type": "db_Numeric",
+      "Size": 9,
+      "EditSize": 9
+    },
+    {
+      "TableName": "@OEVC",
+      "Name": "LastErrMsg",
+      "Description": "LastErrMsg",
+      "Type": "db_Alpha",
+      "Size": 254,
+      "EditSize": 254
+    }
+  ]
+}