feat: add NSIS Windows installer to release workflow

- installer.nsi: per-user install to AppData, Start Menu shortcuts,
  optional desktop shortcut and autostart, clean uninstall (preserves
  data/), Add/Remove Programs registration
- build-dist-windows.sh: runs makensis after ZIP if available
- release.yml: install nsis in CI, upload both ZIP and setup.exe
- Fix Docker registry login (sed -E for https:// stripping)

.gitea/workflows/release.yml

@@ -63,37 +63,50 @@ jobs:
       - name: Install system dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y --no-install-recommends zip libportaudio2
+          sudo apt-get install -y --no-install-recommends zip libportaudio2 nsis
 
       - name: Cross-build Windows distribution
         run: |
           chmod +x build-dist-windows.sh
           ./build-dist-windows.sh "${{ gitea.ref_name }}"
 
-      - name: Upload build artifact
+      - name: Upload build artifacts
         uses: actions/upload-artifact@v3
         with:
           name: LedGrab-${{ gitea.ref_name }}-win-x64
-          path: build/LedGrab-*.zip
+          path: |
+            build/LedGrab-*.zip
+            build/LedGrab-*-setup.exe
           retention-days: 90
 
-      - name: Attach ZIP to release
+      - name: Attach assets to release
         env:
           GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
         run: |
-          TAG="${{ gitea.ref_name }}"
           RELEASE_ID="${{ needs.create-release.outputs.release_id }}"
           BASE_URL="${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}"
-          ZIP_FILE=$(ls build/LedGrab-*.zip | head -1)
-          ZIP_NAME=$(basename "$ZIP_FILE")
 
+          # Upload ZIP
+          ZIP_FILE=$(ls build/LedGrab-*.zip | head -1)
+          if [ -f "$ZIP_FILE" ]; then
             curl -s -X POST \
-            "$BASE_URL/releases/$RELEASE_ID/assets?name=$ZIP_NAME" \
+              "$BASE_URL/releases/$RELEASE_ID/assets?name=$(basename "$ZIP_FILE")" \
               -H "Authorization: token $GITEA_TOKEN" \
               -H "Content-Type: application/octet-stream" \
               --data-binary "@$ZIP_FILE"
+            echo "Uploaded: $(basename "$ZIP_FILE")"
+          fi
 
-          echo "Uploaded: $ZIP_NAME"
+          # Upload installer
+          SETUP_FILE=$(ls build/LedGrab-*-setup.exe 2>/dev/null | head -1)
+          if [ -f "$SETUP_FILE" ]; then
+            curl -s -X POST \
+              "$BASE_URL/releases/$RELEASE_ID/assets?name=$(basename "$SETUP_FILE")" \
+              -H "Authorization: token $GITEA_TOKEN" \
+              -H "Content-Type: application/octet-stream" \
+              --data-binary "@$SETUP_FILE"
+            echo "Uploaded: $(basename "$SETUP_FILE")"
+          fi
 
   # ── Linux tarball ──────────────────────────────────────────
   build-linux:
@@ -165,17 +178,19 @@ jobs:
         run: |
           TAG="${{ gitea.ref_name }}"
           VERSION="${TAG#v}"
-          REGISTRY="${{ gitea.server_url }}/${{ gitea.repository }}"
-          # Lowercase the registry path (Docker requires it)
-          REGISTRY=$(echo "$REGISTRY" | tr '[:upper:]' '[:lower:]' | sed 's|https\?://||')
+          # Strip protocol and lowercase for Docker registry path
+          SERVER_HOST=$(echo "${{ gitea.server_url }}" | sed -E 's|https?://||')
+          REPO=$(echo "${{ gitea.repository }}" | tr '[:upper:]' '[:lower:]')
+          REGISTRY="${SERVER_HOST}/${REPO}"
 
           echo "version=$VERSION" >> "$GITHUB_OUTPUT"
           echo "registry=$REGISTRY" >> "$GITHUB_OUTPUT"
+          echo "server_host=$SERVER_HOST" >> "$GITHUB_OUTPUT"
 
       - name: Login to Gitea Container Registry
         run: |
           echo "${{ secrets.GITEA_TOKEN }}" | docker login \
-            "$(echo '${{ gitea.server_url }}' | sed 's|https\?://||')" \
+            "${{ steps.meta.outputs.server_host }}" \
             -u "${{ gitea.actor }}" --password-stdin
 
       - name: Build Docker image

build-dist-windows.sh

@@ -390,8 +390,29 @@ rm -f "$ZIP_PATH"
 (cd "$BUILD_DIR" && zip -rq "$ZIP_NAME" "$DIST_NAME")
 
 ZIP_SIZE=$(du -h "$ZIP_PATH" | cut -f1)
+
+# ── Build NSIS installer (if makensis is available) ──────────
+
+SETUP_NAME="LedGrab-v${VERSION_CLEAN}-win-x64-setup.exe"
+SETUP_PATH="$BUILD_DIR/$SETUP_NAME"
+
+if command -v makensis &>/dev/null; then
+    echo "[9/8] Building NSIS installer..."
+    makensis -DVERSION="${VERSION_CLEAN}" "$SCRIPT_DIR/installer.nsi" >/dev/null 2>&1
+    if [ -f "$SETUP_PATH" ]; then
+        SETUP_SIZE=$(du -h "$SETUP_PATH" | cut -f1)
+        echo "  Installer: $SETUP_PATH ($SETUP_SIZE)"
+    else
+        echo "  WARNING: makensis ran but installer not found at $SETUP_PATH"
+    fi
+else
+    echo "[9/8] Skipping installer (makensis not found — install nsis to enable)"
+fi
+
 echo ""
 echo "=== Build complete ==="
-echo "  Archive: $ZIP_PATH"
-echo "  Size: $ZIP_SIZE"
+echo "  ZIP: $ZIP_PATH ($ZIP_SIZE)"
+if [ -f "$SETUP_PATH" ]; then
+    echo "  Installer: $SETUP_PATH ($SETUP_SIZE)"
+fi
 echo ""

installer.nsi

@@ -0,0 +1,148 @@
+; LedGrab NSIS Installer Script
+; Cross-compilable on Linux: apt install nsis && makensis installer.nsi
+;
+; Expects the portable build to already exist at build/LedGrab/
+; (run build-dist-windows.sh first)
+
+!include "MUI2.nsh"
+!include "FileFunc.nsh"
+
+; ── Metadata ────────────────────────────────────────────────
+
+!define APPNAME "LedGrab"
+!define DESCRIPTION "Ambient lighting system — captures screen content and drives LED strips in real time"
+!define VERSIONMAJOR 0
+!define VERSIONMINOR 1
+!define VERSIONBUILD 0
+
+; Set from command line: makensis -DVERSION=0.1.0 installer.nsi
+!ifndef VERSION
+  !define VERSION "${VERSIONMAJOR}.${VERSIONMINOR}.${VERSIONBUILD}"
+!endif
+
+Name "${APPNAME} v${VERSION}"
+OutFile "build\${APPNAME}-v${VERSION}-win-x64-setup.exe"
+InstallDir "$LOCALAPPDATA\${APPNAME}"
+InstallDirRegKey HKCU "Software\${APPNAME}" "InstallDir"
+RequestExecutionLevel user
+SetCompressor /SOLID lzma
+
+; ── Modern UI Configuration ─────────────────────────────────
+
+!define MUI_ABORTWARNING
+!define MUI_ICON "server\src\wled_controller\static\icon-192.png"
+!define MUI_UNICON "server\src\wled_controller\static\icon-192.png"
+
+; ── Pages ───────────────────────────────────────────────────
+
+!insertmacro MUI_PAGE_WELCOME
+!insertmacro MUI_PAGE_DIRECTORY
+!insertmacro MUI_PAGE_COMPONENTS
+!insertmacro MUI_PAGE_INSTFILES
+!insertmacro MUI_PAGE_FINISH
+
+!insertmacro MUI_UNPAGE_CONFIRM
+!insertmacro MUI_UNPAGE_INSTFILES
+
+!insertmacro MUI_LANGUAGE "English"
+
+; ── Installer Sections ──────────────────────────────────────
+
+Section "!${APPNAME} (required)" SecCore
+  SectionIn RO
+
+  SetOutPath "$INSTDIR"
+
+  ; Copy the entire portable build
+  File /r "build\LedGrab\python"
+  File /r "build\LedGrab\app"
+  File "build\LedGrab\LedGrab.bat"
+
+  ; Create data and logs directories
+  CreateDirectory "$INSTDIR\data"
+  CreateDirectory "$INSTDIR\logs"
+
+  ; Create uninstaller
+  WriteUninstaller "$INSTDIR\uninstall.exe"
+
+  ; Start Menu shortcuts
+  CreateDirectory "$SMPROGRAMS\${APPNAME}"
+  CreateShortcut "$SMPROGRAMS\${APPNAME}\${APPNAME}.lnk" "$INSTDIR\LedGrab.bat" \
+    "" "" "" SW_SHOWMINIMIZED "" "${DESCRIPTION}"
+  CreateShortcut "$SMPROGRAMS\${APPNAME}\Uninstall.lnk" "$INSTDIR\uninstall.exe"
+
+  ; Registry: install location + Add/Remove Programs entry
+  WriteRegStr HKCU "Software\${APPNAME}" "InstallDir" "$INSTDIR"
+  WriteRegStr HKCU "Software\${APPNAME}" "Version" "${VERSION}"
+
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
+    "DisplayName" "${APPNAME}"
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
+    "DisplayVersion" "${VERSION}"
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
+    "UninstallString" '"$INSTDIR\uninstall.exe"'
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
+    "InstallLocation" "$INSTDIR"
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
+    "Publisher" "Alexei Dolgolyov"
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
+    "URLInfoAbout" "https://git.dolgolyov-family.by/alexei.dolgolyov/wled-screen-controller-mixed"
+  WriteRegDWORD HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
+    "NoModify" 1
+  WriteRegDWORD HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
+    "NoRepair" 1
+
+  ; Calculate installed size for Add/Remove Programs
+  ${GetSize} "$INSTDIR" "/S=0K" $0 $1 $2
+  IntFmt $0 "0x%08X" $0
+  WriteRegDWORD HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
+    "EstimatedSize" "$0"
+SectionEnd
+
+Section "Desktop shortcut" SecDesktop
+  CreateShortcut "$DESKTOP\${APPNAME}.lnk" "$INSTDIR\LedGrab.bat" \
+    "" "" "" SW_SHOWMINIMIZED "" "${DESCRIPTION}"
+SectionEnd
+
+Section "Start with Windows" SecAutostart
+  CreateShortcut "$SMSTARTUP\${APPNAME}.lnk" "$INSTDIR\LedGrab.bat" \
+    "" "" "" SW_SHOWMINIMIZED "" "${DESCRIPTION}"
+SectionEnd
+
+; ── Section Descriptions ────────────────────────────────────
+
+!insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN
+  !insertmacro MUI_DESCRIPTION_TEXT ${SecCore} \
+    "Install ${APPNAME} server and all required files."
+  !insertmacro MUI_DESCRIPTION_TEXT ${SecDesktop} \
+    "Create a shortcut on your desktop."
+  !insertmacro MUI_DESCRIPTION_TEXT ${SecAutostart} \
+    "Start ${APPNAME} automatically when you log in."
+!insertmacro MUI_FUNCTION_DESCRIPTION_END
+
+; ── Uninstaller ─────────────────────────────────────────────
+
+Section "Uninstall"
+  ; Remove shortcuts
+  Delete "$SMPROGRAMS\${APPNAME}\${APPNAME}.lnk"
+  Delete "$SMPROGRAMS\${APPNAME}\Uninstall.lnk"
+  RMDir "$SMPROGRAMS\${APPNAME}"
+  Delete "$DESKTOP\${APPNAME}.lnk"
+  Delete "$SMSTARTUP\${APPNAME}.lnk"
+
+  ; Remove application files (but NOT data/ — preserve user config)
+  RMDir /r "$INSTDIR\python"
+  RMDir /r "$INSTDIR\app"
+  Delete "$INSTDIR\LedGrab.bat"
+  Delete "$INSTDIR\uninstall.exe"
+
+  ; Remove logs (but keep data/)
+  RMDir /r "$INSTDIR\logs"
+
+  ; Try to remove install dir (only succeeds if empty — data/ may remain)
+  RMDir "$INSTDIR"
+
+  ; Remove registry keys
+  DeleteRegKey HKCU "Software\${APPNAME}"
+  DeleteRegKey HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}"
+SectionEnd