Move exec out of pardes.zig into exec.zig

Pure move, no behaviour change (acme keeps this in exec.c): execute,
commandText, max_exec_depth, executeBuiltinLine, applyStartupConfig,
runBuiltin and applySettingBuiltin; the getarg-style operand code
(withArg, PointerOperand, pointerOperand, heldSelection, chordEachSel);
takesCommandLine and the terminals commands run in (spawnTty, spawnV9fsTty,
spawnTtyWithMount, evictLonePristineTty, replaceStillborn, ttyForDir);
placeDoc; and the save path (submitSave, saveFile, saveTo, askWrite), with
the acme-chords test, go verbatim to exec.zig.

The methods become free functions taking `p: *Pardes`. executeBuiltinLine
is called from ~170 places as `p.executeBuiltinLine(..)`, so Pardes keeps
one declaration alias for it and those call sites stay; the other 104 calls
change from `p.execute(..)` to `exec.execute(p, ..)`. ninep/ctl.zig has a
local named exec, so it writes `pardes.exec.execute` instead of importing
the file.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig
index 25fe4037..645b1c33 100644
--- a/src/ninep/ctl.zig
+++ b/src/ninep/ctl.zig
@@ -59,7 +59,7 @@ fn activeSerial(p: *Pardes) ?u32 {
 fn run(p: *Pardes, id: usize, exec: bool, text: []const u8) void {
     const context = p.panes[id].?.serial;
     const before = Serials.snapshot(p);
-    if (exec) _ = p.execute(id, text) else look.lookAt(p, id, text);
+    if (exec) _ = pardes.exec.execute(p, id, text) else look.lookAt(p, id, text);
     const after = Serials.snapshot(p);
     var created = false;
     for (after.list[0..after.len]) |serial| if (!before.has(serial)) {