ci(lx-ci): vet with -unsafeptr=false — upstream debug-crash trips unsafeptr

The 1.14 merge (6b63cee4) brought daemon/managed_service.go and
experimental/libbox/debug.go into vet scope; both crash Go ON PURPOSE via
*(*int)(unsafe.Pointer(uintptr(0)))=0 (TriggerDebugCrash/TriggerGoPanic),
which vet's unsafeptr analyzer flags. They are upstream files we don't edit,
and no lx-owned file uses unsafe at all, so disable just that analyzer.
Fixes the red lint job on every push since the merge.

.github/workflows/lx-ci.yml

@@ -51,7 +51,14 @@ jobs:
 
       - name: go vet (lx packages, full tags)
         run: |
-          go vet -tags "${BASE_TAGS},with_xhttp,with_awg,with_lx_command" \
+          # -unsafeptr=false: upstream's TriggerDebugCrash/TriggerGoPanic
+          # (daemon/managed_service.go, experimental/libbox/debug.go — came in with
+          # the 1.14 merge) crash Go ON PURPOSE via *(*int)(unsafe.Pointer(uintptr(0)))=0,
+          # which trips vet's unsafeptr check. Those are upstream files we don't edit
+          # (CONSTITUTION §zero-diff), and no lx-owned file uses unsafe at all, so
+          # disabling this one analyzer costs nothing on our own code.
+          go vet -unsafeptr=false \
+            -tags "${BASE_TAGS},with_xhttp,with_awg,with_lx_command" \
             ./option/ ./constant/ ./transport/v2ray/ ./transport/v2rayxhttp/ \
             ./protocol/wireguard/ ./transport/wireguard/ \
             ./daemon/ ./experimental/libbox/