feat: configure Windows-only builds for Electron app

Simplified GitHub Actions workflow to only build Windows installers,
removing macOS and Linux targets per user request. This significantly
reduces build time and CI resource usage.

Changes:
- Removed macOS and Linux from build matrix
- Updated workflow to only build on windows-latest
- Removed macOS and Linux configurations from electron-builder.json
- Simplified artifact upload to only handle Windows .exe files

The build now produces:
- NSIS installer (Transcript Parser-Setup-1.0.0.exe)
- Portable executable (Transcript Parser-Portable-1.0.0.exe)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: KevenWMarkham

.github/workflows/electron-build.yml

@@ -11,11 +11,7 @@ on:
 
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      matrix:
-        os: [windows-latest, macos-latest, ubuntu-latest]
+    runs-on: windows-latest
 
     steps:
       - name: Checkout code
@@ -36,34 +32,11 @@ jobs:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Upload Windows artifacts
-        if: matrix.os == 'windows-latest'
         uses: actions/upload-artifact@v4
         with:
           name: windows-installer
           path: |
             release/*.exe
-            release/*.zip
-          retention-days: 30
-
-      - name: Upload macOS artifacts
-        if: matrix.os == 'macos-latest'
-        uses: actions/upload-artifact@v4
-        with:
-          name: macos-installer
-          path: |
-            release/*.dmg
-            release/*.zip
-          retention-days: 30
-
-      - name: Upload Linux artifacts
-        if: matrix.os == 'ubuntu-latest'
-        uses: actions/upload-artifact@v4
-        with:
-          name: linux-installer
-          path: |
-            release/*.AppImage
-            release/*.deb
-            release/*.rpm
           retention-days: 30
 
   # Optional: Create GitHub Release on tag push
@@ -81,10 +54,7 @@ jobs:
       - name: Create Release
         uses: softprops/action-gh-release@v1
         with:
-          files: |
-            artifacts/windows-installer/*
-            artifacts/macos-installer/*
-            artifacts/linux-installer/*
+          files: artifacts/windows-installer/*
           draft: false
           prerelease: false
         env:

electron-builder.json

@@ -6,11 +6,7 @@
     "buildResources": "resources",
     "output": "release"
   },
-  "files": [
-    "dist/**/*",
-    "electron/**/*",
-    "package.json"
-  ],
+  "files": ["dist/**/*", "electron/**/*", "package.json"],
   "extraMetadata": {
     "main": "electron/main.cjs"
   },
@@ -41,36 +37,6 @@
   "portable": {
     "artifactName": "${productName}-Portable-${version}.${ext}"
   },
-  "mac": {
-    "target": ["dmg", "zip"],
-    "icon": "resources/icon.icns",
-    "category": "public.app-category.productivity",
-    "hardenedRuntime": true,
-    "gatekeeperAssess": false,
-    "entitlements": "build/entitlements.mac.plist",
-    "entitlementsInherit": "build/entitlements.mac.plist"
-  },
-  "dmg": {
-    "contents": [
-      {
-        "x": 130,
-        "y": 220
-      },
-      {
-        "x": 410,
-        "y": 220,
-        "type": "link",
-        "path": "/Applications"
-      }
-    ]
-  },
-  "linux": {
-    "target": ["AppImage", "deb", "rpm"],
-    "icon": "resources/icon.png",
-    "category": "Office",
-    "synopsis": "AI-powered video transcription",
-    "description": "Desktop application for transcribing videos with speaker diarization using AI"
-  },
   "publish": {
     "provider": "github",
     "owner": "KevenWMarkham",