Merge release/dsh-0.2.2 (0.2.2-rc.2) into master

# Conflicts:
#	packages/experimental/cua-bundle/package.json
#	packages/ptc-runtime/ptc-runtime-node/package.json

packages/experimental/ptc-runtime-python/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@deepseek-ai/dsh-experimental-ptc-runtime-python",
   "description": "CPython subprocess implementation of the DeepSeek Harness PTC execution seam",
-  "version": "0.2.2-rc.1",
+  "version": "0.2.2-rc.2",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/deepseek-ai/deepseek-harness.git",