Recent keeps only files on disk, and its cap never drops an open one

A renamed scratch never saved and a /virtual/ pane were recorded as recent files, and at 200 the oldest entry went even when that file was open. Opens, renames and closes now record a path only when it is a file on this host, and the cap drops the oldest closed entry. A name with a newline is not written to the kept list, where it would read back as two.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 3 insertions, 1 deletions

diff --git a/docs/fs.md b/docs/fs.md
index dfd888b5..b588b1f1 100644
--- a/docs/fs.md
+++ b/docs/fs.md
@@ -128,7 +128,9 @@ Existing Plan9port/v9fs clients need a userspace bridge for QUIC.
 /recent      the files opened lately, closed ones too, most recent first, a line each:
              `open <path>` or `closed <path>` (read-only; `Recent` shows them in a pane,
              a look at a row reopening the file at its last dot; kept across sessions
-             in $XDG_STATE_HOME/pardes/recent, 200 files; acme has none, its dump and
+             in $XDG_STATE_HOME/pardes/recent, 200 files, the oldest closed one dropped
+             first, never an open one; only files on disk, not a name never saved nor
+             /virtual/; a name escaped as /index's is; acme has none, its dump and
              Load the nearest)
 /layout      one line per column (16 at most; the board 6; Newcol past that fails,
              `no space for a column: 16 max`, ENOSPC), left to right: serial index x width current|notcurrent