refactor(api): ♻️ Move all client schema code to new package

packages/client/schemas/rule.ts

@@ -0,0 +1,23 @@
+import { z } from "@hono/zod-openapi";
+
+export const Rule = z
+    .object({
+        id: z.string().openapi({
+            description: "The identifier for the rule.",
+            example: "1",
+        }),
+        text: z.string().openapi({
+            description: "The rule to be followed.",
+            example: "Do not spam pictures of skibidi toilet.",
+        }),
+        hint: z.string().optional().openapi({
+            description: "Longer-form description of the rule.",
+            example: "Please, we beg you.",
+        }),
+    })
+    .openapi({
+        description: "Represents a rule that server users should follow.",
+        externalDocs: {
+            url: "https://docs.joinmastodon.org/entities/Rule",
+        },
+    });