Update .gitignore: Exclude development files, build artifacts, and summary documents for clean repository

Author: VoxHash

.gitignore

@@ -355,4 +355,31 @@ update_*.py
 upload_*.py
 init_github_repo.py
 build_installers.py
-create_windows_installer.py
+create_windows_installer.py
+
+# Build and distribution files
+build/
+dist/
+*.egg-info/
+*.spec
+installer.iss
+create_dmg.sh
+setup_macos.py
+
+# Development summary files
+*_SUMMARY.md
+*_READY_SUMMARY.md
+*_UPDATE_SUMMARY.md
+FINAL_RELEASE_SUMMARY.md
+RELEASE_SUMMARY_v*.md
+GITHUB_TOPICS.md
+PYPI_READY_SUMMARY.md
+LANGUAGE_UPDATE_SUMMARY.md
+
+# Temporary and development files
+content/
+scripts/
+warmup_demo_simple.py
+test_warmup_async.py
+test_warmup_demo.py
+test_warmup.py