V0.91.1

[dwash96]

Includes:
#303
#314
#318

Addresses:

• Fix tool call output formatting with the little "ᴸ"
• Identify assistant responses in TUI more clearly
• More repo map processing optimizations (more caching, slightly more memory efficient)
• File stubs when /context-management enabled to give models a view of the shape of a file without committing to the whole contents
• Delay completion menu highlighting until a selection is made