Hermes a888eb2c76 Fix demo exit code, manual raw-mode handling, pipe-safe fallback ...

demo.lisp:
  - Removed ignore-errors wrapper: run-demo now returns normally,
    followed by (uiop:quit 0) at top level — fixes exit code always 1 bug
  - Manual set-raw-mode/unwind-protect/restore-terminal-state instead of
    with-raw-terminal macro (safer in edge cases)
  - Graceful fallback when raw mode fails: continues in pipe-safe mode
    so the demo renders frames even without terminal control
  - Simplified tab rendering, fixed textarea-lines display

The demo runs correctly in both interactive and pipe-safe modes.
In a real terminal: raw mode, keyboard/mouse event loop.
In pipe-safe mode: spins rendering frames (read-event returns nil).

Verified running: frames render correctly with borders, tabs, content,
status bar, and event counter.

2026-05-12 01:15:11 +00:00

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