chore: initialize repository baseline

.gitignore

@@ -0,0 +1,59 @@
+# Python virtual environments and caches
+server/.venv/
+.venv/
+__pycache__/
+*.py[cod]
+*$py.class
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+
+# Node dependencies and build output
+node_modules/
+web/node_modules/
+web/dist/
+dist/
+build/
+*.tsbuildinfo
+
+# Local runtime data, databases, uploads and generated artifacts
+server/data/
+server/data-dev/
+data/
+data-dev/
+*.db
+*.sqlite
+*.sqlite3
+*.db-journal
+*.db-wal
+*.db-shm
+
+# Local secrets / environment overrides
+.env
+.env.*
+!.env.production.example
+
+# Logs and temporary files
+*.log
+logs/
+tmp/
+temp/
+*.tmp
+
+# OS/editor files
+.DS_Store
+._*
+Thumbs.db
+.vscode/
+.idea/
+
+# Package archives
+*.zip
+*.tar.gz
+*.rar
+*.7z
+
+# Legacy source snapshots kept only in the delivered folder, not the Git history
+*.pre-*
+*.bak
+*_backup/