A selection holds up to 1024 ranges on the desktop, 64 on the board

The limit was 64 everywhere, which helix-golf's enumerate_and_align outgrows
(%s |\d+ makes 121 ranges). It is now memory.limits.selections, per platform,
and the counts that hold it are u16. The ranges stay inline in each Text, so a
pane grows by about 80 KiB on the desktop (three texts and the regex prompt's
snapshot); the Pane size budget in Terminal.zig moves from 128 to 160 KiB and
says why.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/src/pardes.zig b/src/pardes.zig
index 87041f39..a7bcb195 100644
--- a/src/pardes.zig
+++ b/src/pardes.zig
@@ -3123,7 +3123,7 @@ test "s in a header selects in the header's own text" {
     const text = try edit.flatSurface(p, &p.global_tag);
     const got = p.global_tag.ranges(text, 0, &ranges);
     try std.testing.expectEqual(@as(usize, 3), got.n); // Newcol, Joincol, NextColor
-    try std.testing.expectEqual(@as(u8, 0), pane.body.nsel);
+    try std.testing.expectEqual(@as(u16, 0), pane.body.nsel);
 }
 
 test "Enter in a header runs the word under its cursor, as the execute key does" {
@@ -7547,7 +7547,7 @@ test "jump history clears selections and lands at the recorded cursor" {
         try std.testing.expectEqual(@as(usize, 2), p.njumps);
         try std.testing.expectEqual(@as(u32, 3), p.jumps[0].line);
         try std.testing.expect(!pane.body.vsel.active and !pane.body.msel.active and !pane.body.select);
-        try std.testing.expectEqual(@as(u8, 0), pane.body.nsel);
+        try std.testing.expectEqual(@as(u16, 0), pane.body.nsel);
         try std.testing.expectEqual(.none, pane.sel[0].state);
         try std.testing.expect(pane.pointer_selections[0] == null);
         try std.testing.expectEqual(@as(i32, if (index == 0) 2 else 0), pane.body.cur_row);