feat: add configuration parsing and job definitions

Add a YAML config schema for migration jobs (source/target schema, table, primary key, options) and parse it at startup.

cmd/go_migrate/inspect-columns.go

@@ -242,6 +242,10 @@ ORDER BY c.column_id;
 			return nil, fmt.Errorf("Error scanning column type results: %W", err)
 		}
 
+		if strings.HasPrefix(column.name, "graph_id") && column.systemType == "bigint" {
+			continue
+		}
+
 		colTypes = append(colTypes, MapMssqlColumn(column))
 	}