chore(release): bump @mosaicstack/mosaic 0.0.34 -> 0.0.35

Ships Phase-2 fleet observability (fleet ps / agent watch / agent send --verify
+ heartbeat protocol), the durable-launch PATH fix (#581), and the merged
public-sanitization gate (#572) + CONSTITUTION extraction (#575).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RMoEx7hfdFGjUiCHuN1RRi

packages/mosaic/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@mosaicstack/mosaic",
-  "version": "0.0.34",
+  "version": "0.0.35",
   "repository": {
     "type": "git",
     "url": "https://git.mosaicstack.dev/mosaicstack/stack.git",