fix(ci): run Nx without Nx Cloud in CircleCI (org disabled)

The Nx Cloud organization is disabled, so 'yarn build:package:all' (nx run-many)
hard-fails in CircleCI with 'Nx Cloud: Workspace is unable to be authorized.
Exiting run.' — failing build-api/build-web/build-desktop on every PR and on
develop. The rest of the repo already runs Nx locally (NX_NO_CLOUD=true in all
GitHub workflows and Dockerfiles); CircleCI's config was stale. Adds
NX_NO_CLOUD: true to the shared &defaults environment so all jobs inherit it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: evereq

.circleci/config.yml

@@ -69,6 +69,11 @@ defaults: &defaults
     NODE_OPTIONS: --max-old-space-size=12288
     # Disable Angular CLI analytics
     NG_CLI_ANALYTICS: false
+    # Run Nx locally without Nx Cloud (the Nx Cloud org is disabled; the rest of
+    # the repo — GitHub workflows + Dockerfiles — already sets NX_NO_CLOUD=true).
+    # Without this, `nx run-many` hard-fails with "Nx Cloud: Workspace is unable
+    # to be authorized. Exiting run."
+    NX_NO_CLOUD: true
 
 # ==============================================================================
 # Jobs