Refactor panes and filesystem; replace FUSE with 9P

Consolidate pane, layout, memory and host code. Serve 9P by default over Unix sockets, with runtime mounts and optional TCP/QUIC transports. Remove FUSE and obsolete proof-of-concept examples.

Fix highlighting and terminal-history performance, expand differential and stress-test infrastructure, sort navigation results while preserving the next occurrence, add syntax-colored Braille minimaps, remove SPC-k, and document 9P interaction as a repository skill.

1 files changed, 1 insertions, 78 deletions

diff --git a/test/snapshots/leader.golden b/test/snapshots/leader.golden
index d2068e8d..fd4fbf98 100644
--- a/test/snapshots/leader.golden
+++ b/test/snapshots/leader.golden
@@ -44,45 +44,14 @@
 == snap abandoned grid=100x40 cursor=7,2
 |39:
 == snap unmapped grid=100x40 cursor=7,2
-== snap help-word grid=100x40 cursor=7,22
-|21:   /tmp/pardes-snap/leader/cwd/+Help                          Save New Newtty Del
-|22:      1 pardes builtins, and how to run each:
-|23:      2 SPC and its keys, a chord, a button, the
-|24:      3 topbar - or the name, executed anywhere.
-|25:      4
-|26:      5 SPC ?     Help              topbar
-|27:      6 SPC P     ClipPasteBefore
-|28:      7 SPC R     ClipReplace
-|29:      8 SPC Y     ClipYankMain
-|30:      9 SPC a a   PanelAscii
-|31:     10 SPC a c   PanelCurtain
-|32:     11 SPC a d   PanelDissolve
-|33:     12 SPC a e   PanelEdges
-|34:     13 SPC a f   PanelFall
-|35:     14 SPC a r   PanelScramble
-|36:     15 SPC a s   PanelSlide
-|37:     16 SPC a t   PanelType
-|38:     17 SPC a v   PanelVertical
-|39:     18 SPC a w   PanelWave
 == snap help-group grid=100x40 cursor=7,22
+|21:   /tmp/pardes-snap/leader/cwd/+Help                          Save New Newtty Del
 |22:      1 pardes builtins under SPC h
 |23:      2
 |24:      3 SPC h c   Changelog         topbar
 |25:      4 SPC h m   Messages
 |26:      5 SPC h t   Tutor             topbar
 |27:      6
-|28:
-|29:
-|30:
-|31:
-|32:
-|33:
-|34:
-|35:
-|36:
-|37:
-|38:
-|39:
 == snap tutor grid=100x40 cursor=7,12
 |11:   /Tutor                                                     Save New Newtty Del
 |12:      1
@@ -105,44 +74,6 @@
 |18:
 |19:
 |20:
-== snap help-all grid=100x40 cursor=7,22
-|22:      1 pardes builtins, and how to run each:
-|23:      2 SPC and its keys, a chord, a button, the
-|24:      3 topbar - or the name, executed anywhere.
-|25:      4
-|26:      5 SPC ?     Help              topbar
-|27:      6 SPC P     ClipPasteBefore
-|28:      7 SPC R     ClipReplace
-|29:      8 SPC Y     ClipYankMain
-|30:      9 SPC a a   PanelAscii
-|31:     10 SPC a c   PanelCurtain
-|32:     11 SPC a d   PanelDissolve
-|33:     12 SPC a e   PanelEdges
-|34:     13 SPC a f   PanelFall
-|35:     14 SPC a r   PanelScramble
-|36:     15 SPC a s   PanelSlide
-|37:     16 SPC a t   PanelType
-|38:     17 SPC a v   PanelVertical
-|39:     18 SPC a w   PanelWave
-== snap help-toggles grid=100x40 cursor=7,22
-|22:      1 pardes builtins under SPC t
-|23:      2
-|24:      3 SPC t a   Ascii
-|25:      4 SPC t b   Tagbottom
-|26:      5 SPC t c   Colors
-|27:      6 SPC t d   Debug             topbar
-|28:      7 SPC t i   PdfTint
-|29:      8 SPC t l   Palette
-|30:      9 SPC t n   NextColor         topbar
-|31:     10 SPC t p   Petscii
-|32:     11 SPC t s   PdfSections
-|33:     12 SPC t t   ThemeSel
-|34:     13 SPC t w   Wrap
-|35:     14 SPC t z   PdfFit
-|36:     15
-|37:
-|38:
-|39:
 == snap help-window grid=100x40 cursor=7,22
 |22:      1 pardes builtins under SPC w
 |24:      3 SPC w h   Left              C-w h, C-w left
@@ -150,14 +81,6 @@
 |26:      5 SPC w k   Up                C-w k, C-w up
 |27:      6 SPC w l   Right             C-w l, C-w right
 |28:      7
-|29:
-|30:
-|31:
-|32:
-|33:
-|34:
-|35:
-|36:
 == snap help-language grid=100x40 cursor=7,22
 |22:      1 pardes builtins under SPC l
 |24:      3 SPC l C   Callees