CCR runs hang indefinitely on 'Setting up a cloud container' step

Description

Claude Code Routines (CCR) runs are hanging indefinitely at the 'Setting up a cloud container' step and cannot be cancelled from the web UI or API.

Steps to reproduce

1. Create a CCR routine with environment ID env_01YcHT4vc5MPa2WpB2pzdr4h (Default / Anthropic Cloud)
2. Trigger a manual run from the routines web UI
3. Run enters 'Setting up a cloud container' stage and never progresses past it

Observed behaviour

• Multiple runs stuck simultaneously (12:42 and 13:30 runs both hanging)
• No way to cancel a stuck run from the web UI (no cancel button visible)
• No cancel action available in the RemoteTrigger API
• The routines detail page itself fails to load via direct deep link
• Runs remain in 'Running' state indefinitely

Environment

• CCR Environment ID: env_01YcHT4vc5MPa2WpB2pzdr4h
• Environment type: anthropic_cloud (Default)
• Date: 2026-05-04
• Routine IDs affected: trig_015TFEKQz548sFqFjNkB1HZa

Impact

Routine has been disabled to prevent further stuck runs firing on schedule. Unable to test or validate the routine until this is resolved.