chore: initialize K1 connector pre-production scaffold

tests/test_cli.py

@@ -0,0 +1,23 @@
+import json
+
+from typer.testing import CliRunner
+
+from k1link.cli import app
+
+runner = CliRunner()
+
+
+def test_help() -> None:
+    result = runner.invoke(app, ["--help"])
+    assert result.exit_code == 0
+    assert "evidence-led" in result.stdout
+
+
+def test_doctor_json() -> None:
+    result = runner.invoke(app, ["doctor", "--json"])
+    assert result.exit_code == 0
+    payload = json.loads(result.stdout)
+    assert payload["k1link_version"] == "0.1.0"
+    assert isinstance(payload["tools"], list)
+    assert isinstance(payload["network"], dict)
+    assert any(item["name"] == "tcpdump" for item in payload["tools"])