Initial commit: LAAPC Print Service - Windows service with multi-tray printing, IPC queue management, PDF testing support, and self-installing CLI

.gitignore

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+# .NET Build Outputs
+bin/
+obj/
+publish/
+
+# Runtime Data Folders (don't commit capture files or queues)
+Captures/
+Queue/
+Archive/
+Error/
+Output/
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio Code
+.vscode/*
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# Visual Studio
+.vs/
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Rr]elease/
+x64/
+x86/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# NuGet Packages
+*.nupkg
+*.snupkg
+**/packages/*
+!**/packages/build/
+*.nuget.props
+*.nuget.targets
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# Test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# Files built by Visual Studio
+*.pidb
+*.svclog
+*.scc
+
+# ReSharper
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# Windows
+Thumbs.db
+ehthumbs.db
+Desktop.ini
+$RECYCLE.BIN/
+
+# macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Log files
+*.log
+
+# Queue state file (contains runtime job queue)
+queue-state.json