--resume hangs silently when disk quota is exceeded (EDQUOT)

Environment

• Claude Code version: 2.1.183
• Platform: Linux (OpenShift container, CephFS PVC)

Bug Description

When the filesystem backing ~/.claude is full, --resume hangs indefinitely after selecting a session from the picker. No error message is shown, even with --verbose. The only way to surface the actual error is --resume <id> --print, which outputs:

Failed to resume session: EDQUOT: unknown error, write

Related behaviors when the disk is full:

• --resume <id> (without --print): hangs forever, no output
• --resume (picker): picker works, then hangs after selection
• --continue: exits silently with no output
• --verbose adds no additional information to any of the above

New sessions (claude) work fine since they presumably don't need to write as much upfront.

Expected Behavior

A clear error message like "Cannot resume session: disk full (EDQUOT)" instead of hanging or silently exiting.

Steps to Reproduce

1. Fill the filesystem where ~/.claude lives to 100%
2. Run claude --resume and pick a session
3. Observe: hangs indefinitely with no output