Enhance .gitignore with new ignore patterns

Expanded .gitignore to include additional system files, PowerShell artifacts, deployment artifacts, and sensitive data.

Author: Pnwcomputers

.gitignore

@@ -1,22 +1,39 @@
-# Logs
-*.log
-Logs/
+# --- Windows System Files ---
+[Dd]esktop.ini
+[Tt]humbs.db
+$RECYCLE.BIN/
+*.lnk
 
-# Personal configurations
-Config/Personal/
-Config/*.local.*
+# --- PowerShell / Scripting ---
+# Ignore PowerShell history and temporary sessions
+.history.ndjson
+__pycache__/
+*.log
+*.err
+*.out
 
-# Cached installers
-Installers/*.msi
-Installers/*.exe
-!Installers/.gitkeep
+# --- Deployment Artifacts ---
+# Ignore downloaded installers (don't sync 500MB MSIs to GitHub)
+*.msi
+*.exe
+*.cab
+*.iso
+downloads/
+temp/
 
-# PowerShell specific
-*.ps1xml
-TestResults/
-coverage.xml
+# --- Sensitive Data (CRITICAL) ---
+# Ignore local environment configs or custom deployment variables
+.env
+config.local.ps1
+secrets.json
+*.pfx
+*.cer
+credentials.xml
 
-# Windows
-Thumbs.db
-Desktop.ini
-$RECYCLE.BIN/
+# --- Editor / IDE ---
+.vscode/
+.idea/
+*.suo
+*.user
+*.userosscache
+*.sln.docstates