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/test/pdf.zig b/test/pdf.zig
index 69a82123..dde58df8 100644
--- a/test/pdf.zig
+++ b/test/pdf.zig
@@ -342,7 +342,7 @@ test "PdfSections Look follows the exact owning PDF, not an equal path" {
 
     const duplicate_id = p.freeSlot() orelse return error.NoDuplicatePdfSlot;
     const duplicate = try panes.Pdf.openPane(p, duplicate_id, path, 0);
-    p.placeDoc(0, duplicate_id, duplicate);
+    pardes.exec.placeDoc(p, 0, duplicate_id, duplicate);
     layout.compute(p);
     panes.Pdf.openSections(p, duplicate_id);
     const duplicate_output_id = duplicate.search_pane orelse return error.MissingDuplicatePdfSections;