Add oRPC API contract with Zod schemas

- Create @reviq/api-contract package
- Define Zod schemas for all input/output types:
  - Auth schemas (signup, login, password reset, WebAuthn)
  - User/profile schemas
  - Organization schemas (CRUD, members, invites)
  - Admin procedure schemas
- Define oRPC contract with full procedure signatures:
  - auth.* (signup, login, password reset, WebAuthn)
  - me.* (profile, sessions, devices, passkeys)
  - orgs.* (CRUD, members, invites, sites)
  - admin.* (orgs, users, auth management)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/api-contract/package.json

@@ -0,0 +1,27 @@
+{
+  "name": "@reviq/api-contract",
+  "version": "0.0.1",
+  "type": "module",
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "scripts": {
+    "build": "tsc",
+    "clean": "tsc --build --clean && rm -rf dist/ node_modules/ .eslintcache",
+    "lint": "eslint . --cache"
+  },
+  "dependencies": {
+    "@orpc/contract": "^1.13.2",
+    "libphonenumber-js": "^1.12.33",
+    "zod": "^4.3.5"
+  },
+  "devDependencies": {
+    "@macalinao/tsconfig": "catalog:",
+    "typescript": "catalog:"
+  }
+}