refactor(sdk): name the private Python runtime carrier explicitly

Rename the relocated npm workspace to @deepseek-ai/dsh-sdk-python-runtime and the runnable example to python-sdk-agent, then update every owning English/Chinese document, test, and packaged-runtime reference. Remove the obsolete standalone bin while retaining the carrier entrypoints used to assemble the wheel runtime.

This is intentionally a naming and ownership change, not a Python SDK migration. The public deepseek_harness_sdk and deepseek_harness_runtime module, wheel, executable, environment, and wire behavior remain unchanged. Documentation records that this private carrier is the temporary sole non-dsh application exception and will move to profile launch later.

python/sdk/tests/manual_sdk_agent_smoke.py

@@ -44,7 +44,7 @@ class MockCompletionHandler(BaseHTTPRequestHandler):
 
 def run_smoke(repo_root: Path, keep_sessions: bool) -> None:
     session_root = Path(tempfile.mkdtemp(prefix="dsh-sdk-smoke-sessions-"))
-    runtime_entry = repo_root / "packages/examples/jsonrpc-demo/src/bin.ts"
+    runtime_entry = repo_root / "packages/sdk/python-runtime/src/packaged-bin.ts"
     server = ThreadingHTTPServer(("127.0.0.1", 0), MockCompletionHandler)
     thread = threading.Thread(target=server.serve_forever, name="mock-openai-compatible-server", daemon=True)
     thread.start()

python/sdk/tests/test_bundled_runtime.py

@@ -16,7 +16,7 @@ from deepseek_harness_runtime import resolve_bundled_launch_args
 
 _MODES = ("exe", "node")
 _REPO_ROOT = Path(__file__).parents[3]
-_MINIMAL_CONFIG = _REPO_ROOT / "examples" / "jsonrpc-agent" / "minimal.cordis.yml"
+_MINIMAL_CONFIG = _REPO_ROOT / "examples" / "python-sdk-agent" / "minimal.cordis.yml"
 
 # The config must include the JSON-RPC serving plugin.
 _CORDIS_YML = """\