[Bug] Stop hook error: execvpe(/bin/bash) failed on WSL environment

Bug Description
● Ran 1 stop hook
⎿ Stop hook error: Failed with non-blocking status code: <3>WSL (9 - Relay) ERROR: CreateProcessCommon:800: execvpe(/bin/bash) failed: No such file or directory

✻ Worked for 11m 11s

● Agent "Read lang files for AI entries" completed
● All tasks are now complete. The implementation is fully in place across all 5 phases - backend SSE streaming, frontend streaming services, UI components, styling/template, and vocabulary entries. The background agent confirmed the
language file patterns match what I used.

● Ran 1 stop hook ⎿ Stop hook error: Failed with non-blocking status code: <3>WSL (12 - Relay) ERROR: CreateProcessCommon:800: execvpe(/bin/bash) failed: No such file or directory

● Agent "Read existing backend files" completed

● Both background research agents have completed. Their findings confirm the implementation is correctly aligned with the existing codebase patterns. Everything is fully implemented. …
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