Fix build errors and update dependencies

- Add ProjectOperationsService.cs to project file compilation
- Update System.Text.Json from 8.0.0 to 8.0.5 to fix security vulnerabilities
- Fix .NET Framework 4.8 compatibility (remove entireProcessTree parameter from Process.Kill)
- Remove ExcludeAssets restriction from Microsoft.VisualStudio.SDK package
- Add project operation endpoints (NuGet, build, clean, restore, directory creation)
- Update AGENTS.md with MSBuild build instructions and warnings
- Replace roslyn-api skill with roslyn-bridge skill
- Update settings with additional auto-approvals

Build now completes successfully with MSBuild (0 errors, 34 warnings).

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

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

.claude/settings.local.json

@@ -12,7 +12,15 @@
       "Bash(move:*)",
       "Bash(tree:*)",
       "Bash(dir:*)",
-      "Bash(git config:*)"
+      "Bash(git config:*)",
+      "Bash(del \"C:\\Users\\AJ\\Desktop\\RoslynBridge\\RoslynBridge\\Services\\ShellService.cs\")",
+      "Skill(roslyn-bridge)",
+      "Bash(dotnet restore:*)",
+      "Bash(msbuild:*)",
+      "Bash(\"C:\\Program Files\\Microsoft Visual Studio\\2022\\Community\\MSBuild\\Current\\Bin\\MSBuild.exe\" /t:Restore,Build /p:Configuration=Debug)",
+      "Bash(\"C:\\Program Files\\Microsoft Visual Studio\\2022\\Community\\MSBuild\\Current\\Bin\\MSBuild.exe\" RoslynBridge.sln /t:Restore /t:Build /p:Configuration=Debug)",
+      "Bash(del \".claude\\init.md\")",
+      "Bash(git add:*)"
     ],
     "deny": [],
     "ask": []