refactor(api): ♻️ Move from @hono/zod-openapi to hono-openapi

hono-openapi is easier to work with and generates better OpenAPI definitions

packages/client/schemas/common.ts

@@ -1,13 +1,21 @@
-import { z } from "@hono/zod-openapi";
 import ISO6391 from "iso-639-1";
+import { z } from "zod";
 
 export const Id = z.string().uuid();
 
 export const iso631 = z
     .enum(ISO6391.getAllCodes() as [string, ...string[]])
-    .openapi("ISO631");
+    .openapi({
+        description: "ISO 639-1 language code",
+        example: "en",
+        externalDocs: {
+            url: "https://en.wikipedia.org/wiki/List_of_ISO_639-1_language_codes",
+        },
+        ref: "ISO631",
+    });
 
 export const zBoolean = z
     .string()
     .transform((v) => ["true", "1", "on"].includes(v.toLowerCase()))
+    .openapi({ type: "boolean" })
     .or(z.boolean());