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, 6 insertions, 6 deletions

diff --git a/test/hxcases/waivers.jsonl b/test/hxcases/waivers.jsonl
index ca1b8ec5..82da2a08 100644
--- a/test/hxcases/waivers.jsonl
+++ b/test/hxcases/waivers.jsonl
@@ -1,6 +1,6 @@
-{"name":"wiX-edit-drops-sel","reason":"helix maps the selection through every insert-mode edit; pardes drops it on the first edit instead (anchor-only divergence, text+cursor+mode match). Re-judged phase 5 and kept: mapping the anchor through all ~23 mutation sites in handleInsert (multi-line inserts, EOL joins, kill runs) is genuinely invasive, and nothing in pardes consumes an implicit selection after insert-mode typing - the acme chords need explicit selections, which never enter insert."}
-{"name":"alt-c-window-op","reason":"deliberate pardes binding: Alt-c is the move-pane-to-fresh-column window op in ANY mode (do-not-touch contract); helix Alt-c is change-noyank. Alt-d + i covers the helix behavior; the buffer is untouched on the pardes side."}
-{"name":"msel-append","reason":"multiple cursors + `a`: pardes restores the appended-over span for the PRIMARY only, because Pane.append_at (where the append session began) is a single field and the other ranges have nowhere to keep their own origin. Every cursor lands on the right cell and the text matches; only the secondaries' anchors differ, so they read as bare cursors instead of spanning what was typed. Same family as wiX-edit-drops-sel: pardes does not map selections through insert-mode edits. Fix = an origin per SelRange."}
-{"name":"msel-yank-paste","reason":"pardes has ONE yank register; helix's holds one VALUE PER RANGE and pastes value[i] back at range[i]. A multi-range `y` in pardes therefore joins the ranges' text with newlines and `p` puts the whole newline-joined blob at every cursor (which also makes it linewise). Deliberate: a per-range register is its own feature, not part of the selection model. Single-range yank/paste is unaffected and covered by the yank-* / paste-* cases."}
-{"name": "sel-regex-dot-newline", "reason": "mvzr's `.` matches ANY byte, newlines included; helix builds its pattern with the Rust regex crate, where `.` excludes \\n unless asked. So `%s.` selects one range per byte in pardes and one per non-newline byte in helix. Deliberate: closing it means rewriting `.` to `[^\\n]` inside the pattern, and doing that correctly needs a real parse (`\\.` is a literal dot, a `.` inside `[...]` is already literal) - a regex parser written to work around the regex engine. `[^\\n]` typed at the prompt LOOKS like the workaround and is not one: the live preview compiles every prefix, and the prefix `[^\\` panics mvzr (index out of bounds in parseCharSet) before the pattern can be finished. Guarding the compile is what would make it typable."}
-{"name": "sel-regex-caret", "reason": "helix compiles the `s`/`S` pattern with multi_line(true), so `^` and `$` are LINE anchors; mvzr has no such flag and asserts them against the START OF THE SLICE it is handed, which pardes advances to each match's end. `%s^a` therefore finds one match in pardes and one per line in helix. Same root cause for `$`. Fixing it means either searching line by line - which changes which ranges come out for every OTHER pattern, since a match may not span a line then - or an engine with multi-line assertions. Every other anchor-free pattern agrees, including \\b (sel-regex-boundary)."}
+{"name":"wiX-edit-drops-sel","reason":"Insert edits clear the selection instead of tracking its anchor.","reference":{"name":"wiX-edit-drops-sel","text":"Xalpha beta\n","mode":"normal","cursor":{"row":0,"col":1},"anchor":{"row":0,"col":6}},"expected":{"name":"wiX-edit-drops-sel","text":"Xalpha beta\n","mode":"normal","cursor":{"row":0,"col":1},"anchor":{"row":0,"col":1}}}
+{"name":"alt-c-window-op","reason":"Alt-c moves a pane to a new column instead of Helix's change-noyank.","reference":{"name":"alt-c-window-op","text":"bc def\n","mode":"insert","cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0}},"expected":{"name":"alt-c-window-op","text":"abc def\n","mode":"normal","cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0}}}
+{"name":"msel-append","reason":"Append-mode selection origins are tracked only for the primary selection.","reference":{"name":"msel-append","text":"aza\nbzb\n","mode":"normal","cursor":{"row":1,"col":1},"anchor":{"row":1,"col":0},"sels":[{"cursor":{"row":0,"col":1},"anchor":{"row":0,"col":0}},{"cursor":{"row":1,"col":1},"anchor":{"row":1,"col":0}}],"primary":1},"expected":{"name":"msel-append","text":"aza\nbzb\n","mode":"normal","cursor":{"row":1,"col":1},"anchor":{"row":1,"col":0},"sels":[{"cursor":{"row":0,"col":1},"anchor":{"row":0,"col":1}},{"cursor":{"row":1,"col":1},"anchor":{"row":1,"col":0}}],"primary":1}}
+{"name":"msel-yank-paste","reason":"Pardes has one combined yank register, not one value per selection.","reference":{"name":"msel-yank-paste","text":"aab\nccd\n","mode":"normal","cursor":{"row":1,"col":1},"anchor":{"row":1,"col":1},"sels":[{"cursor":{"row":0,"col":1},"anchor":{"row":0,"col":1}},{"cursor":{"row":1,"col":1},"anchor":{"row":1,"col":1}}],"primary":1},"expected":{"name":"msel-yank-paste","text":"aa\ncb\nca\ncd\n","mode":"normal","cursor":{"row":3,"col":0},"anchor":{"row":2,"col":1},"sels":[{"cursor":{"row":1,"col":0},"anchor":{"row":0,"col":1}},{"cursor":{"row":3,"col":0},"anchor":{"row":2,"col":1}}],"primary":1}}
+{"name":"sel-regex-dot-newline","reason":"The regex engine includes newlines in dot matches.","reference":{"name":"sel-regex-dot-newline","text":"ab\n","mode":"normal","cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0},"sels":[{"cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0}},{"cursor":{"row":0,"col":1},"anchor":{"row":0,"col":1}}],"primary":0},"expected":{"name":"sel-regex-dot-newline","text":"ab\n","mode":"normal","cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0},"sels":[{"cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0}},{"cursor":{"row":0,"col":1},"anchor":{"row":0,"col":1}},{"cursor":{"row":0,"col":2},"anchor":{"row":0,"col":2}}],"primary":0}}
+{"name":"sel-regex-caret","reason":"The regex engine lacks Helix's multiline anchors.","reference":{"name":"sel-regex-caret","text":"ab\nab\n","mode":"normal","cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0},"sels":[{"cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0}},{"cursor":{"row":1,"col":0},"anchor":{"row":1,"col":0}}],"primary":0},"expected":{"name":"sel-regex-caret","text":"ab\nab\n","mode":"normal","cursor":{"row":0,"col":0},"anchor":{"row":0,"col":0}}}