feat: add shared dashboard API contracts

packages/api-contracts/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "@reddit-bot/api-contracts",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "types": "./src/index.ts",
+  "exports": {
+    ".": "./src/index.ts"
+  },
+  "scripts": {
+    "test": "vitest run",
+    "typecheck": "tsc -p tsconfig.json"
+  },
+  "peerDependencies": {
+    "zod": "^4.3.5"
+  }
+}