[Bug] Context usage display mismatch between status bar and /context command

Bug Description
The status bar shows 0% context left but the /context command shows 17% Free space.

<img width="841" height="438" alt="Image" src="https://github.com/user-attachments/assets/f64cb6dc-8db7-4a1a-9c26-38d70c94f208" />

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.0.51
• Feedback ID: d7cbcfdf-2a5d-4056-8070-fdf167a58c63

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/adanielnoel/.local/share/claude/versions/2.0.51 (expected in multi-process scenarios)\n    at ML0 (/$bunfs/root/claude:2641:1622)\n    at B6A (/$bunfs/root/claude:2639:12709)\n    at async X97 (/$bunfs/root/claude:2639:13911)\n    at async Ox (/$bunfs/root/claude:2641:236)\n    at async <anonymous> (/$bunfs/root/claude:2641:12469)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-24T19:08:54.811Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/adanielnoel/.local/share/claude/versions/2.0.51 (expected in multi-process scenarios)\n    at ML0 (/$bunfs/root/claude:2641:1622)\n    at B6A (/$bunfs/root/claude:2639:12709)\n    at async X97 (/$bunfs/root/claude:2639:13911)\n    at async Ox (/$bunfs/root/claude:2641:236)\n    at async <anonymous> (/$bunfs/root/claude:2641:12469)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-24T19:09:02.709Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/adanielnoel/.local/share/claude/versions/2.0.51 (expected in multi-process scenarios)\n    at ML0 (/$bunfs/root/claude:2641:1622)\n    at B6A (/$bunfs/root/claude:2639:12709)\n    at async X97 (/$bunfs/root/claude:2639:13911)\n    at async Ox (/$bunfs/root/claude:2641:236)\n    at async <anonymous> (/$bunfs/root/claude:2641:12469)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-24T19:09:07.210Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at readFileSync (unknown)\n    at readFileSync (/$bunfs/root/claude:12:370)\n    at EaB (/$bunfs/root/claude:4227:16942)\n    at call (/$bunfs/root/claude:1463:912)\n    at call (/$bunfs/root/claude:1459:5768)\n    at Jt8 (/$bunfs/root/claude:2149:26113)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-24T19:09:39.631Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/adanielnoel/.local/share/claude/versions/2.0.51 (expected in multi-process scenarios)\n    at ML0 (/$bunfs/root/claude:2641:1622)\n    at B6A (/$bunfs/root/claude:2639:12709)\n    at async X97 (/$bunfs/root/claude:2639:13911)\n    at async Ox (/$bunfs/root/claude:2641:236)\n    at async <anonymous> (/$bunfs/root/claude:2641:12469)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-24T19:15:05.497Z"},{"error":"ZodError\n    at error (/$bunfs/root/claude:77:18464)\n    at parse (/$bunfs/root/claude:77:11726)\n    at w67 (/$bunfs/root/claude:4010:4667)\n    at async <anonymous> (/$bunfs/root/claude:4010:6182)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-24T19:15:42.306Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/adanielnoel/.local/share/claude/versions/2.0.51 (expected in multi-process scenarios)\n    at ML0 (/$bunfs/root/claude:2641:1622)\n    at B6A (/$bunfs/root/claude:2639:12709)\n    at async X97 (/$bunfs/root/claude:2639:13911)\n    at async Ox (/$bunfs/root/claude:2641:236)\n    at async <anonymous> (/$bunfs/root/claude:2641:12469)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-24T19:21:24.087Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at readFileSync (unknown)\n    at readFileSync (/$bunfs/root/claude:12:370)\n    at EaB (/$bunfs/root/claude:4227:16942)\n    at call (/$bunfs/root/claude:1463:912)\n    at call (/$bunfs/root/claude:1459:5768)\n    at Jt8 (/$bunfs/root/claude:2149:26113)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-24T19:31:07.299Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/adanielnoel/.local/share/claude/versions/2.0.51 (expected in multi-process scenarios)\n    at ML0 (/$bunfs/root/claude:2641:1622)\n    at B6A (/$bunfs/root/claude:2639:12709)\n    at async X97 (/$bunfs/root/claude:2639:13911)\n    at async Ox (/$bunfs/root/claude:2641:236)\n    at async <anonymous> (/$bunfs/root/claude:2641:12469)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-24T19:32:52.367Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/adanielnoel/.local/share/claude/versions/2.0.51 (expected in multi-process scenarios)\n    at ML0 (/$bunfs/root/claude:2641:1622)\n    at B6A (/$bunfs/root/claude:2639:12709)\n    at async X97 (/$bunfs/root/claude:2639:13911)\n    at async Ox (/$bunfs/root/claude:2641:236)\n    at async <anonymous> (/$bunfs/root/claude:2641:12469)\n    at processTicksAndRejections (native:7:3

Note: Error logs were truncated.