feat: introduced omptype validation package and migrated workspace dependencies

- Introduce `@oh-my-pi/omptype` as a new ArkType-compatible schema validation package featuring a lazy JIT runtime, JSON Schema emission, and compatibility adapters.
- Replace `arktype` across workspace packages and test utilities with `@oh-my-pi/omptype`.
- Add benchmark suites, tests, and documentation for the new validation engine and adapters.
- Update workspace build, test runner, and release configurations to include the new package.

packages/ai/package.json

@@ -38,10 +38,10 @@
   },
   "dependencies": {
     "@bufbuild/protobuf": "catalog:",
+    "@oh-my-pi/omptype": "catalog:",
     "@oh-my-pi/pi-catalog": "catalog:",
     "@oh-my-pi/pi-utils": "catalog:",
     "@oh-my-pi/pi-wire": "catalog:",
-    "arktype": "catalog:",
     "zod": "catalog:"
   },
   "devDependencies": {