revert: undo turbo typecheck dependency change from #14828 (#15902)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Hona <10430890+Hona@users.noreply.github.com>

turbo.json

@@ -3,9 +3,7 @@
   "globalEnv": ["CI", "OPENCODE_DISABLE_SHARE"],
   "globalPassThroughEnv": ["CI", "OPENCODE_DISABLE_SHARE"],
   "tasks": {
-    "typecheck": {
-      "dependsOn": ["^build"]
-    },
+    "typecheck": {},
     "build": {
       "dependsOn": ["^build"],
       "outputs": ["dist/**"]