teknium1 c754135965 fix: banner wraps in narrow terminals (Kitty, small windows) ...

The full HERMES-AGENT ASCII logo needs ~95 columns, and the
side-by-side caduceus + tools panel needs ~80. In narrow terminals
(Kitty default, resized windows) everything wraps into visual garbage.

Fixes:
- show_banner() auto-detects terminal width and falls back to compact
  banner when < 80 columns
- build_welcome_banner() skips the ASCII logo when < 95 columns
- Compact banner now dynamically sized via _build_compact_banner()
  instead of a hardcoded 64-char box that also wrapped in narrow terms
- Same width checks applied to /clear command's banner refresh

The up/down arrow key issue in Kitty terminal for multiline input is
a known Kitty keyboard protocol (CSI u) vs prompt_toolkit compatibility
gap — arrow keys work correctly in standard terminals and tmux. Users
can work around it by running in tmux or setting TERM=xterm-256color.

2026-03-09 05:57:36 -07:00

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