feat(windows): rewrite NSIS installer, add pgtidy update command

.gitea/workflows/release.yml

@@ -231,10 +231,10 @@ jobs:
           GOOS=windows GOARCH=amd64 CGO_ENABLED=0 go build \
             -trimpath \
             -ldflags "-X main.version=${PKGVER}" \
-            -o pgtidy.exe \
+            -o pgtidy-windows-amd64.exe \
             ./cmd/pgtidy
 
-          makensis -DVERSION="${PKGVER}" -DSRC_EXE="$(pwd)/pgtidy.exe" windows/installer.nsi
+          makensis -DVERSION="${PKGVER}" -DEXE="$PWD/pgtidy-windows-amd64.exe" -DOUT="$PWD/pgtidy-setup-windows-amd64.exe" windows/installer.nsi
 
       - name: Upload to release
         run: |
@@ -244,7 +244,7 @@ jobs:
             -H "Authorization: token ${GITHUB_TOKEN}")
           UPLOAD_URL=$(echo "$RELEASE" | grep -o '"upload_url":"[^"]*"' | cut -d'"' -f4 | sed 's/{[^}]*}//')
           [ -z "$UPLOAD_URL" ] && { echo "upload_url not found: $RELEASE"; exit 1; }
-          for f in windows/pgtidy-setup-*.exe; do
+          for f in pgtidy-setup-windows-amd64.exe; do
             echo "Uploading $(basename "$f")..."
             curl -s -X POST "${UPLOAD_URL}?name=$(basename "$f")" \
               -H "Authorization: token ${GITHUB_TOKEN}" \