feat: navigate command and search input history

docs/editing.md

@@ -51,8 +51,8 @@ Indicators refresh asynchronously. Typing and undo/redo retain the last complete
 | Insert | Type, Enter, Tab, Backspace/Delete, arrows, Home/End at every caret outside snippets; Esc returns to Normal, retaining carets |
 | Insert | Ctrl+n requests completion at the primary caret or cycles next; Ctrl+j/k cycles next/previous while completion is open |
 | Insert, active snippet | Type to replace the highlighted argument and its mirrors; Tab / Shift+Tab moves next/previous |
-| Command | Enter executes; Backspace edits; Esc cancels |
-| Search | Type a literal query; Enter accepts the current occurrence or finds the next match; Backspace edits; Esc cancels |
+| Command | Enter executes; ↑/↓ or Ctrl+k/j browse history; Backspace edits; Esc cancels |
+| Search | Type a literal query; Enter accepts the current occurrence or finds the next match; ↑/↓ or Ctrl+k/j browse history; Backspace edits; Esc cancels |
 | Insert, Command, Search | Ctrl+u deletes backward to the logical line start |
 | Insert, Command, Search (macOS) | Option+Backspace deletes backward by word; Command+Backspace deletes backward to the logical line start |
 
@@ -192,6 +192,8 @@ Submitting an empty search repeats the last query. Esc cancels without moving th
 
 `:` opens compact floating command input titled **Command**; `/` opens input titled **Search** for buffer text search. Titles sit at the top-left border, replacing the displayed leading `:` / `/`. Both input fields have one column of padding on each side. Enter submits and Escape cancels using the existing modal rules. Long Unicode input scrolls horizontally without changing buffer text. Both windows default to the workspace's bottom-left edge, directly above the bottom bar when visible; their [anchors can be configured independently](configuration.md#command-and-search-popup-anchors). They temporarily hide operation notifications and never reserve a permanent prompt/footer row. Tiny windows omit borders/titles or padding when needed to keep input usable.
 
+Up/Ctrl+k recalls older entries; Down/Ctrl+j recalls newer entries and restores the unfinished input after the newest. Navigation stops at either end without executing a command or moving search targets. Recalled text is editable without changing stored entries. Command and search histories are separate, shared across buffers/panes/tabs, and retained only for this editor session, up to 100 entries each. Enter records nonempty submissions, including unknown commands and searches with no matches; consecutive duplicates are skipped. Empty submissions and cancelled drafts are not recorded. Ctrl+j no longer submits Command/Search input; use Enter.
+
 Command input works in both Normal and Visual modes, including read-only diff panes. The original selection stays highlighted while typing. Enter dispatches with its ranges, direction, and linewise shape intact; individual commands decide whether to consume or retain them. Escape returns to the original Visual selection without executing. For example, select lines with `V`, then type `:diff.comment` and press Enter—no command palette is needed. `config.core.command` can also be bound in Visual mode.
 
 The latest reported operation result appears in a non-focusable popup at the workspace's bottom-right, just above the bottom bar when visible, with one column of inner padding on each side when space permits. It remains until dismissed or replaced, with no timer. In Normal mode, the first Escape dismisses it without collapsing carets; a subsequent Escape retains ordinary Normal behavior. Existing modal windows, focused explorers/diff selectors, and pending prefixes retain Escape priority. New operation messages reopen the popup; routine successful buffer switches do not duplicate the buffer/path information already shown in the bar.