fix: Home and End keys not working

[carolitascl]

Issue for this PR

Closes#29053

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

Fix home/end keys stopped moving the text cursor while typing in the prompt

Root cause: the keys were coupled into one command each:

messages_first: keybind("ctrl+g,home", ...)
messages_last: keybind("ctrl+alt+g,end", ...)

gather(layer, commandIds) returns a command's entire key-set, so there was no way to guard home/end while keeping ctrl+g/ctrl+alt+g always-on.

Fix: split each into two IDs. Chords stay always-on; home/end move to a layer enabled only when no editor is focused (enabled: () => currentFocusedEditor === null).

The chords still work mid-typing because they aren't claimed by the managed-textarea input layer (only input.* keys like home, ctrl+a, ctrl+e are).

State	home / end	ctrl+g / ctrl+alt+g
Typing in prompt	moves cursor	jumps first/last
Transcript focused	jumps first/last message	jumps first/last message

If you paste a large clearly AI generated description here your PR may be IGNORED or CLOSED!

How did you verify your code works?

Type-checked both files (0 errors). No existing tests reference these command IDs. The TUI test suite won't run in my environment (@opentui/solid/preload not installed —
pre-existing/environmental), so I have not verified the behavior in the live TUI; that should be confirmed by someone with the renderer set up.

Screenshots / recordings

Home and End keys Not fixed

home-end-keys-not-fixed.mp4

Home and End keys fixed

home-end-keys-fixed.mp4

If this is a UI change, please include a screenshot or recording.
None

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

If you do not follow this template your PR will be automatically rejected.

[github-actions]

Hey! Your PR title Home and end key fix doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

Found 2 potentially related PRs:

1. PR fix(opencode): restore Home/End prompt navigation in TUI #19135 - fix(opencode): restore Home/End prompt navigation in TUI

   • Directly related to the same Home/End key functionality in the TUI

2. PR fix(tui): handle Home and End keys in prompt input #31489 - fix(tui): handle Home and End keys in prompt input

   • Also addresses Home and End keys in the prompt input layer

These PRs appear to be addressing the same or very similar issues with Home/End key handling in the TUI prompt. You may want to review them to ensure there's no overlapping work or to check if this is a regression of previously fixed behavior.

[github-actions]

Thanks for updating your PR! It now meets our contributing guidelines. 👍

[Copilot]

Pull request overview

Fixes Home/End key behavior in the TUI session prompt by decoupling navigation keybinds (Home/End) from the always-available jump chords (Ctrl+G / Ctrl+Alt+G), so cursor movement works while typing and transcript navigation still works when unfocused.

Changes:

• Split “first/last message” navigation into separate command IDs for chord bindings vs Home/End bindings.
• Add an “unfocused-only” keybinding layer for Home/End navigation when no editor is focused.
• Minor typing/cleanup adjustments in the session route.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
README.md	Adds a new top-of-file HTML heading block (currently malformed/unrelated to the project README).
packages/tui/src/routes/session/index.tsx	Introduces new session.first_home / session.last_home commands and binds them only when no editor is focused.
packages/tui/src/config/keybind.ts	Splits messages_first/messages_last bindings into chord-only plus Home/End-specific command IDs mapped to new session commands.

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