feat(plugins): add managed runtime SDK and release 2.4.5

examples/plugins/evidence-demo/plugin.json

@@ -7,7 +7,8 @@
   "artemis_version": ">=2.0.0,<3.0.0",
   "platforms": ["win32", "linux", "darwin"],
   "architectures": ["amd64", "arm64"],
-  "server": {"command": "${config.python}", "args": ["${plugin_dir}/server.py"]},
+  "license": "Apache-2.0",
+  "server": {"command": "${config.python}", "args": ["-B", "${plugin_dir}/server.py"]},
   "config": {"python": {"label": "含 MCP 依赖的 Python", "default": "python"}},
   "skill": "SKILL.md",
   "targets": ["mixed", "computer"],