Update .gitignore with comprehensive patterns for Python projects and build artifacts

.gitignore

@@ -1,3 +1,4 @@
+# OSBuild specific ignores
 *.tar.gz
 *.egg-info
 __pycache__
@@ -10,9 +11,6 @@ __pycache__
 /.idea
 /.gdb_history
 
-/build-logs
-/cache
-
 cov-analysis-linux64/
 cov-analysis-osbuild.xz
 cov-int/
@@ -35,3 +33,120 @@ debian-forge-docs/koji
 # Embedded git repositories
 docs/debian/debos/
 docs/debian/koji/
+
+# Python bytecode and cache files
+*.pyc
+*.pyo
+*.pyd
+*.so
+*.dylib
+*.dll
+*.exe
+*.bin
+
+# Python package files (but allow test data)
+*.egg
+*.whl
+*.tar
+*.zip
+*.gz
+*.bz2
+*.xz
+*.7z
+!test/**/*.tar
+!test/**/*.gz
+!test/**/*.xml
+!test/**/*.html
+!test/**/*.css
+!test/**/*.js
+!docs/**/*.xml
+!docs/**/*.html
+!docs/**/*.css
+!docs/**/*.js
+
+# Build directories
+build/
+dist/
+*.deb
+
+# Test and coverage files
+test-output/
+coverage/
+.coverage
+*.cover
+htmlcov/
+.pytest_cache/
+
+# Temporary and backup files
+*.tmp
+*.temp
+*.log
+*.pid
+*.lock
+*.bak
+*.backup
+*.orig
+*.rej
+*.patch
+*.diff
+*~
+!test/**/*.log
+!docs/**/*.log
+
+# System files
+Thumbs.db
+.Trash*
+.nfs*
+
+# IDE and editor files
+*.swp
+*.swo
+.vimrc
+.emacs
+.sublime-*
+.project
+.classpath
+.settings
+
+# OS-specific files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Lock files (but allow test data)
+*.lock
+.cache.lock
+!test/**/*.lock
+
+# Cache directories
+.cache/
+cache/
+
+# Environment files
+.env
+.env.local
+.env.*.local
+
+# Local configuration
+config.local.*
+*.local
+
+# Backup files
+*.bak
+*.old
+*.save
+
+# Temporary build artifacts
+tmp/
+temp/
+
+# OSBuild stage files (but allow test data)
+assemblers/org.osbuild.tar
+stages/org.osbuild.rpm
+stages/org.osbuild.tar
+stages/org.osbuild.xz
+stages/org.osbuild.zip