opencode Add keybindable commands to navigate between user messages

Closes #5077

Implements configurable keybinds to jump between user messages in chat.

Defaults to "none" to avoid keybind collisions
Snaps directly to user message boundaries
Updated keybinds.mdx documentation

Dec 04 '25 19:12 will-marella

This is awesome!!

I would add default to <leader>+up and <leader>+down.

Dec 04 '25 19:12 dbpolito

intentionally not setting default to avoid issues rn, we can add a default later on. Some keybind stuff is in flux rn

Dec 04 '25 19:12 rekram1-node

/review

Dec 04 '25 19:12 rekram1-node

@will-marella This should probably include a check similar to !part.synthetic && !part.ignored to avoid moving to messages that were actually produced by plugins and not typed by the user. Moving between plugin-produced messages is likely not the behaviour that was intended or that users would expect from these commands.

Dec 04 '25 20:12 ariane-emory

@will-marella This should probably include a check similar to !part.synthetic && !part.ignored to avoid moving to messages that were actually produced by plugins and not typed by the user. Moving between plugin-produced messages is likely not the behaviour that was intended or that users would expect from these commands.

This filter is now added with the same logic as messages_last_user

Dec 04 '25 21:12 will-marella

/review

Dec 05 '25 05:12 rekram1-node

Rebased on latest dev and addressed all code review feedback:

Typed dialog parameter with ReturnType<typeof useDialog> Used non-mutating reverse with spread operator Refactored to guard clause pattern to deduplicate dialog.clear() while avoiding else per style guide

Note: Pushed with --no-verify due to typecheck errors in upstream packages unrelated to this PR. My changes typecheck cleanly when checked in isolation.

Dec 05 '25 15:12 will-marella

/review

Dec 22 '25 16:12 rekram1-node

lgtm

Dec 22 '25 16:12 github-actions[bot]