fix(ci): pass CLAUDE_USE_GLOBAL_AUTH to Docker smoke test container

The server fatally exits when no AI credentials are configured.
The smoke test only needs to verify the container starts and serves
HTTP, not process AI requests. Pass CLAUDE_USE_GLOBAL_AUTH=true to
satisfy the credential check.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: coleam00

.github/workflows/test.yml

@@ -62,7 +62,7 @@ jobs:
 
       - name: Smoke test — container starts and serves /api/health
         run: |
-          docker run -d --name archon-smoke -e PORT=3000 -p 3000:3000 archon-ci:test
+          docker run -d --name archon-smoke -e PORT=3000 -e CLAUDE_USE_GLOBAL_AUTH=true -p 3000:3000 archon-ci:test
           sleep 5
           curl --fail --retry 10 --retry-delay 3 --retry-all-errors http://localhost:3000/api/health