feat: double ESC to clear the input

[LeeFred3042U]

Closes #73

Changes

internal/app/ui/keys.go

• Added Clear key.Binding to KeyMap struct
• Added esc keybinding in DefaultKeyMap() with help text esc esc, clear input

internal/app/ui/model.go

• Added StatePending to the const
• Added seqTimeoutMsg struct to carry the sequence number when the 500ms timer is triggered
• Added escSeq int field to Model to track the current esc seq generation
• Added time to imports
• In Update(): added Clear key handler inside tea.KeyMsg block:
  • first esc sets StatePending and fires a tea.Tick
  • second esc within 500ms calls m.input.Reset() and returns to StateInput
• In Update(): added escTimeoutMsg case,
  • cancels pending state if the sequence number matches

Note: the 3 other files changes is maybe due to fmt, because it just removed 3 empty lines and 1 space, should i revert it or keep it?

[balajz]

There is one edge case that needs to be resolved.

If I execute a long-running query, the UI state changes to StateExecuting, and the spinner starts spinning. During that time, if I press Esc, the UI switches to StatePending and eventually returns to StateInput. However, the backend continues executing the query, which creates an inconsistency between the UI and the backend. however the user still receives the query result.

screen_2026-06-06_08-42-40.mp4

[balajz]

should i revert it or keep it?

keep it

[LeeFred3042U]

There is one edge case that needs to be resolved.
ok

[LeeFred3042U]

@balajz
i updated the code for the edge case

[balajz]

Merging, Thank you for your contribution!.