fix: pass default openapi object to any case

Ticket: DX-2582

This commit passes the defaultOpenAPIObject to the any case. This allows for us to not drop the jsdoc information on t.any types.

It is valid openapi to have descriptions and other metadata on any types: https://swagger.io/docs/specification/v3_0/data-models/data-types/#any-type

From the following slack thread: https://bitgo.slack.com/archives/C057BHBRG4B/p1765481932730759

\# Test
Tested in `entity-validation`:
```
$ > diff test.json test2.json
3123,3137c3123,3125
<                   "frontPhoto": {
<                     "description": "Front photo of the identity document",
<                     "example": "\"passport-front.jpg\"",
<                     "format": "binary"
<                   },
<                   "backPhoto": {
<                     "description": "Back photo of the identity document",
<                     "example": "\"drivers-license-back.png\"",
<                     "format": "binary"
<                   },
<                   "proofOfResidency": {
<                     "description": "Proof of residency",
<                     "example": "\"rental-lease.pdf\"",
<                     "format": "binary"
<                   }
---
>                   "frontPhoto": {},
>                   "backPhoto": {},
>                   "proofOfResidency": {}
3264,3278c3252,3254
<                   "frontPhoto": {
<                     "description": "Front photo of the identity document",
<                     "example": "\"passport-front.jpg\"",
<                     "format": "binary"
<                   },
<                   "backPhoto": {
<                     "description": "Back photo of the identity document",
<                     "example": "\"drivers-license-back.png\"",
<                     "format": "binary"
<                   },
<                   "proofOfResidency": {
<                     "description": "Proof of residency",
<                     "example": "\"rental-lease.pdf\"",
<                     "format": "binary"
<                   }
---
>                   "frontPhoto": {},
>                   "backPhoto": {},
>                   "proofOfResidency": {}
```

Author: starfy84

packages/openapi-generator/src/openapi.ts

@@ -234,7 +234,7 @@ export function schemaToOpenAPI(
       case 'undefined':
         return undefined;
       case 'any':
-        return {};
+        return { ...defaultOpenAPIObject };
       default:
         return {};
     }

packages/openapi-generator/test/openapi/jsdoc.test.ts

@@ -1232,3 +1232,131 @@ testCase(
     },
   },
 );
+
+const ROUTE_WITH_ANY_AND_DESCRIPTION = `
+import * as t from 'io-ts';
+import * as h from '@api-ts/io-ts-http';
+
+/**
+ * A simple route
+ *
+ * @operationId api.v1.test
+ * @tag Test Routes
+ */
+export const route = h.httpRoute({
+  path: '/foo',
+  method: 'GET',
+  request: h.httpRequest({}),
+  response: {
+    200: {
+      /**
+       * Test description
+       */
+      test: t.any
+    }
+  },
+});
+`;
+
+testCase('route with example object', ROUTE_WITH_ANY_AND_DESCRIPTION, {
+  openapi: '3.0.3',
+  info: {
+    title: 'Test',
+    version: '1.0.0',
+  },
+  paths: {
+    '/foo': {
+      get: {
+        summary: 'A simple route',
+        operationId: 'api.v1.test',
+        tags: ['Test Routes'],
+        parameters: [],
+        responses: {
+          200: {
+            description: 'OK',
+            content: {
+              'application/json': {
+                schema: {
+                  type: 'object',
+                  properties: {
+                    test: {
+                      description: 'Test description',
+                    },
+                  },
+                  required: ['test'],
+                },
+              },
+            },
+          },
+        },
+      },
+    },
+  },
+  components: {
+    schemas: {},
+  },
+});
+
+const ROUTE_WITH_ANY_AND_FORMAT = `
+import * as t from 'io-ts';
+import * as h from '@api-ts/io-ts-http';
+
+/**
+ * A simple route
+ *
+ * @operationId api.v1.test
+ * @tag Test Routes
+ */
+export const route = h.httpRoute({
+  path: '/foo',
+  method: 'GET',
+  request: h.httpRequest({}),
+  response: {
+    200: {
+      /**
+       * @format binary
+       */
+      test: t.any
+    }
+  },
+});
+`;
+
+testCase('route with example object', ROUTE_WITH_ANY_AND_FORMAT, {
+  openapi: '3.0.3',
+  info: {
+    title: 'Test',
+    version: '1.0.0',
+  },
+  paths: {
+    '/foo': {
+      get: {
+        summary: 'A simple route',
+        operationId: 'api.v1.test',
+        tags: ['Test Routes'],
+        parameters: [],
+        responses: {
+          200: {
+            description: 'OK',
+            content: {
+              'application/json': {
+                schema: {
+                  type: 'object',
+                  properties: {
+                    test: {
+                      format: 'binary',
+                    },
+                  },
+                  required: ['test'],
+                },
+              },
+            },
+          },
+        },
+      },
+    },
+  },
+  components: {
+    schemas: {},
+  },
+});