fixed issue with STI on non-tables

fixtures/polymorphism.json

@@ -1,6 +1,6 @@
 [
   {
-    "description": "Vertical family Routing (Across Tables)",
+    "description": "Vertical family Routing (Scenario A)",
     "database": {
       "types": [
         {
@@ -153,7 +153,7 @@
     ]
   },
   {
-    "description": "Matrix family Routing (Vertical + Horizontal Intersections)",
+    "description": "Matrix family Routing (Scenario B)",
     "database": {
       "types": [
         {
@@ -284,7 +284,7 @@
     ]
   },
   {
-    "description": "Horizontal family Routing (Virtual Variations)",
+    "description": "Horizontal family Routing (Scenario C)",
     "database": {
       "types": [
         {
@@ -776,5 +776,123 @@
         }
       }
     ]
+  },
+  {
+    "description": "JSONB Field Bubble family Routing (Scenario D)",
+    "database": {
+      "types": [
+        {
+          "name": "dashboard",
+          "variations": [
+            "dashboard"
+          ],
+          "schemas": {
+            "dashboard": {
+              "type": "object",
+              "properties": {
+                "type": {
+                  "type": "string"
+                }
+              }
+            },
+            "panel": {
+              "type": "object",
+              "required": [
+                "id",
+                "kind"
+              ],
+              "properties": {
+                "id": {
+                  "type": "string"
+                },
+                "kind": {
+                  "type": "string"
+                }
+              }
+            },
+            "balance.panel": {
+              "type": "panel",
+              "properties": {
+                "amount": {
+                  "type": "integer"
+                }
+              }
+            },
+            "units.panel": {
+              "type": "panel",
+              "properties": {
+                "count": {
+                  "type": "integer"
+                }
+              }
+            }
+          }
+        },
+        {
+          "name": "family_panel",
+          "schemas": {
+            "family_panel": {
+              "family": "panel"
+            }
+          }
+        }
+      ]
+    },
+    "tests": [
+      {
+        "description": "Successfully routes to nested balance panel",
+        "schema_id": "family_panel",
+        "data": {
+          "id": "123",
+          "kind": "balance",
+          "amount": 500
+        },
+        "action": "validate",
+        "expect": {
+          "success": true
+        }
+      },
+      {
+        "description": "Fails validation on routed schema due to invalid property type",
+        "schema_id": "family_panel",
+        "data": {
+          "id": "123",
+          "kind": "balance",
+          "amount": "not_an_int"
+        },
+        "action": "validate",
+        "expect": {
+          "success": false,
+          "errors": [
+            {
+              "code": "INVALID_TYPE",
+              "details": {
+                "path": "amount"
+              }
+            }
+          ]
+        }
+      },
+      {
+        "description": "Fails when discriminator does not match any bubble schema",
+        "schema_id": "family_panel",
+        "data": {
+          "id": "123",
+          "kind": "unknown_panel"
+        },
+        "action": "validate",
+        "expect": {
+          "success": false,
+          "errors": [
+            {
+              "code": "NO_FAMILY_MATCH",
+              "details": {
+                "path": ""
+              }
+            }
+          ]
+        }
+      }
+    ]
   }
 ]