chore: initialize K1 connector pre-production scaffold

.gitignore

@@ -0,0 +1,44 @@
+.DS_Store
+.idea/
+.vscode/
+
+# Project-local Python environment and caches
+.venv/
+__pycache__/
+*.py[cod]
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+.coverage
+htmlcov/
+dist/
+build/
+*.egg-info/
+
+# Local configuration and secrets
+.env
+.env.*
+!.env.example
+config/local.toml
+private/
+
+# Real laboratory captures and decoded artifacts are sensitive and large.
+captures/
+sessions/
+artifacts/raw/
+artifacts/decoded/
+*.pcap
+*.pcapng
+*.snoop
+*.xbin
+*.las
+*.lcc
+*.ply
+*.pcd
+*.npz
+*.raw
+
+# Small synthetic/redacted fixtures under tests/fixtures are allowed.
+!tests/fixtures/**/*.pcap
+!tests/fixtures/**/*.pcapng
+