test(chat): verify concurrent explicit X publication and harden CI installs

Keep the invoking message available beyond the bounded history window. Disable dependency lifecycle scripts in the Sentry install path.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.github/workflows/sentry-contract.yml

@@ -50,10 +50,10 @@ jobs:
         # Dependency-changing PRs leave lockfile updates to CI, as the main PR
         # lanes do. Resolve the merge tree locally before the frozen install.
         run: |
-          if ! pnpm install --frozen-lockfile; then
+          if ! pnpm install --ignore-scripts --frozen-lockfile; then
             echo '::notice title=Lockfile::checked-in lockfile is stale for this merge tree; resolving it inline'
             pnpm install --resolution-only --ignore-scripts --no-frozen-lockfile
-            pnpm install --frozen-lockfile
+            pnpm install --ignore-scripts --frozen-lockfile
           fi
 
       - name: Install the audited optional SDK outside the workspace