Enable NuGet lock file for reproducible builds (MINOR)

Enabled packages.lock.json for deterministic dependency resolution:

Project Changes:
- Added RestorePackagesWithLockFile=true to .csproj
- Added RestoreLockedMode=true for CI environments
- Generated initial packages.lock.json with all dependencies

Lock File Contents:
- Direct dependencies: Microsoft.Win32.Registry 5.0.0
- Transitive dependencies tracked:
  - System.Security.AccessControl 5.0.0
  - System.Security.Principal.Windows 5.0.0
  - Microsoft.NETCore.Platforms 5.0.0
- Includes content hashes for security verification

Workflow Changes:
- Re-enabled setup-dotnet built-in cache
- Now uses packages.lock.json for cache key
- Both build and release jobs benefit from caching

Benefits:
✅ Reproducible builds - Exact dependency versions locked
✅ Security - Content hashes prevent tampering
✅ Faster CI - Better caching with lock file
✅ Dependency tracking - All transitive deps visible
✅ Supply chain protection - Prevents dependency confusion

Locked Mode in CI:
- RestoreLockedMode ensures CI uses exact locked versions
- Prevents unexpected dependency updates in builds
- Fails if lock file is out of sync (forces explicit updates)

Author: mtg-eagletg

.github/workflows/build-release.yml

@@ -60,6 +60,8 @@ jobs:
       uses: actions/setup-dotnet@v4
       with:
         dotnet-version: '8.0.x'
+        cache: true
+        cache-dependency-path: '**/packages.lock.json'
 
     - name: Cache NuGet packages
       uses: actions/cache@v4
@@ -151,6 +153,8 @@ jobs:
       uses: actions/setup-dotnet@v4
       with:
         dotnet-version: '8.0.x'
+        cache: true
+        cache-dependency-path: '**/packages.lock.json'
 
     - name: Cache NuGet packages
       uses: actions/cache@v4

ContextMenuEditor.csproj

@@ -22,6 +22,10 @@
     <PublishSingleFile>true</PublishSingleFile>
     <PublishTrimmed>false</PublishTrimmed>
     <IncludeNativeLibrariesForSelfExtract>true</IncludeNativeLibrariesForSelfExtract>
+    
+    <!-- Enable NuGet lock file for reproducible builds -->
+    <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
+    <RestoreLockedMode Condition="'$(CI)' == 'true'">true</RestoreLockedMode>
   </PropertyGroup>
 
   <ItemGroup>

packages.lock.json

@@ -0,0 +1,68 @@
+{
+  "version": 1,
+  "dependencies": {
+    "net8.0-windows7.0": {
+      "Microsoft.NET.ILLink.Tasks": {
+        "type": "Direct",
+        "requested": "[8.0.20, )",
+        "resolved": "8.0.20",
+        "contentHash": "Rhcto2AjGvTO62+/VTmBpumBOmqIGp7nYEbTbmEXkCq4yPGxV8whju3/HsIA/bKyo2+DggaYk5+/8sxb1AbPTw=="
+      },
+      "Microsoft.Win32.Registry": {
+        "type": "Direct",
+        "requested": "[5.0.0, )",
+        "resolved": "5.0.0",
+        "contentHash": "dDoKi0PnDz31yAyETfRntsLArTlVAVzUzCIvvEDsDsucrl33Dl8pIJG06ePTJTI3tGpeyHS9Cq7Foc/s4EeKcg==",
+        "dependencies": {
+          "System.Security.AccessControl": "5.0.0",
+          "System.Security.Principal.Windows": "5.0.0"
+        }
+      },
+      "Microsoft.NETCore.Platforms": {
+        "type": "Transitive",
+        "resolved": "5.0.0",
+        "contentHash": "VyPlqzH2wavqquTcYpkIIAQ6WdenuKoFN0BdYBbCWsclXacSOHNQn66Gt4z5NBqEYW0FAPm5rlvki9ZiCij5xQ=="
+      },
+      "System.Security.AccessControl": {
+        "type": "Transitive",
+        "resolved": "5.0.0",
+        "contentHash": "dagJ1mHZO3Ani8GH0PHpPEe/oYO+rVdbQjvjJkBRNQkX4t0r1iaeGn8+/ybkSLEan3/slM0t59SVdHzuHf2jmw==",
+        "dependencies": {
+          "Microsoft.NETCore.Platforms": "5.0.0",
+          "System.Security.Principal.Windows": "5.0.0"
+        }
+      },
+      "System.Security.Principal.Windows": {
+        "type": "Transitive",
+        "resolved": "5.0.0",
+        "contentHash": "t0MGLukB5WAVU9bO3MGzvlGnyJPgUlcwerXn1kzBRjwLKixT96XV0Uza41W49gVd8zEMFu9vQEFlv0IOrytICA=="
+      }
+    },
+    "net8.0-windows7.0/win-x64": {
+      "Microsoft.Win32.Registry": {
+        "type": "Direct",
+        "requested": "[5.0.0, )",
+        "resolved": "5.0.0",
+        "contentHash": "dDoKi0PnDz31yAyETfRntsLArTlVAVzUzCIvvEDsDsucrl33Dl8pIJG06ePTJTI3tGpeyHS9Cq7Foc/s4EeKcg==",
+        "dependencies": {
+          "System.Security.AccessControl": "5.0.0",
+          "System.Security.Principal.Windows": "5.0.0"
+        }
+      },
+      "System.Security.AccessControl": {
+        "type": "Transitive",
+        "resolved": "5.0.0",
+        "contentHash": "dagJ1mHZO3Ani8GH0PHpPEe/oYO+rVdbQjvjJkBRNQkX4t0r1iaeGn8+/ybkSLEan3/slM0t59SVdHzuHf2jmw==",
+        "dependencies": {
+          "Microsoft.NETCore.Platforms": "5.0.0",
+          "System.Security.Principal.Windows": "5.0.0"
+        }
+      },
+      "System.Security.Principal.Windows": {
+        "type": "Transitive",
+        "resolved": "5.0.0",
+        "contentHash": "t0MGLukB5WAVU9bO3MGzvlGnyJPgUlcwerXn1kzBRjwLKixT96XV0Uza41W49gVd8zEMFu9vQEFlv0IOrytICA=="
+      }
+    }
+  }
+}