init: seed framework reference content from agent-runtimes main repo

harnesses/capabilities/python-dev/v1/harness.yaml

@@ -0,0 +1,19 @@
+kind: capability
+name: python-dev
+version: 1
+description: "Python dev tools: pytest, ruff, mypy, uv"
+requires: []
+
+packages:
+  apt: [python3-venv]
+  pip: [pytest, ruff, mypy, hypothesis, uv]
+
+env:
+  PIP_BREAK_SYSTEM_PACKAGES: "1"
+
+network_hosts:
+  - pypi.org
+  - files.pythonhosted.org
+
+scripts:
+  init: "./init.sh"