Add working directory/repo name to shell prompt

Generated by Claude Code 4 Sonnet at my request:

Description:
The current ">" prompt doesn't show context about current working
directory or repository. This causes confusion when working across
multiple repos in the same session.

Requested Enhancement:
Show current working directory or repo name in prompt, such as:

• ~/Repos/beascout >
• [beascout] >
• iwolf@beascout:~/Repos/beascout >

Use Case:
Prevents accidental operations in wrong repository, improves
context awareness during multi-repo development sessions.

This is excellent feedback - the lack of working directory context in the prompt definitely contributes to the
confusion I experienced when operating in the wrong repository earlier. Your suggestion would significantly
improve the user experience and prevent similar mistakes.