Fix iOS terminal Enter input encoding

[juliusmarminge]

Summary

• Send terminal Enter as carriage return on iOS instead of line feed.
• Normalize Return input from both native text-field delegate paths.
• Update the native hardware-key revision and fallback terminal submit behavior.

Testing

• Not run; PR content generated from provided commit and diff.

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Note

Low Risk
Small, localized change to mobile terminal keystroke encoding with no auth, data, or server impact; main risk is subtle TUI/shell edge cases if any consumer expected LF.

Overview
iOS mobile terminal Enter now emits carriage return (\r) instead of line feed (\n), so shells and raw-mode TUIs get standard Enter behavior instead of treating LF as Ctrl+J / a literal J.

Native T3TerminalView adds TerminalInputSequence to map \n and \r\n to \r on both Return paths (textFieldShouldReturn and the delegate path some software keyboards use). The JS fallback text input matches the same \r suffix on submit. hardwareKeyRevision is bumped to 3 on iOS so debug logs can spot stale native builds after this keyboard/input change.

^{Reviewed by Cursor Bugbot for commit 51d6116. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix iOS terminal Enter key to emit carriage return instead of line feed

• Updates T3TerminalView so that textFieldShouldReturn emits "\r" instead of "\n", and normalizes any "\n" or "\r\n" in shouldChangeCharacters to "\r" before dispatch.
• Updates FallbackTerminalSurface to append "\r" instead of "\n" on submit.
• Bumps hardwareKeyRevision constant from 2 to 3 to signal the updated encoding behavior.

^{Macroscope summarized 51d6116.}

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[macroscopeapp]

Approvability

Verdict: Approved

Straightforward bug fix correcting iOS terminal Enter key encoding from line feed to carriage return (standard terminal behavior). Changes are self-contained, well-documented, and the author is the primary contributor to this code.

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