Merge pull request #382 from rymalia/fix/zod-version-pin

fix: pin zod to exact 4.2.1 to prevent tsc build failure

package.json

@@ -52,7 +52,7 @@
     "picomatch": "^4.0.0",
     "sqlite-vec": "^0.1.7-alpha.2",
     "yaml": "^2.8.2",
-    "zod": "^4.2.1"
+    "zod": "4.2.1"
   },
   "optionalDependencies": {
     "sqlite-vec-darwin-arm64": "^0.1.7-alpha.2",