fix(ui-tui): Shift+Enter inserts newline instead of submitting

[Speedway1]

Summary

In the Hermes TUI, Alt+Enter correctly inserts a newline in the text input, but Shift+Enter was incorrectly submitting the message instead.

This PR makes Shift+Enter insert a newline (like Alt+Enter) and limits plain Enter to submission only.

Changes

• Patched [email protected] (ui-tui/node_modules/ink-text-input/build/index.js): Added !key.shift guard to the key.return submit handler so Shift+Enter falls through to the newline-insertion path.
• Added patch-package for reproducible patching across npm install runs.
• ui-tui/package.json: Added postinstall: patch-package script.

Technical detail

ink-text-input's useInput handler had:

if (key.return) {   // submits on ANY Enter
    onSubmit(originalValue);
    return;
}

Now:

if (key.return && !key.shift) {   // only plain Enter submits
    onSubmit(originalValue);
    return;
}

Testing

Verified manually in the Hermes TUI:

• Plain Enter submits the message
• Shift+Enter inserts a newline
• patch-package applies cleanly after npm install