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, 3 insertions, 3 deletions

diff --git a/src/Pipe.zig b/src/Pipe.zig
index 37145edf..48e98b7b 100644
--- a/src/Pipe.zig
+++ b/src/Pipe.zig
@@ -55,10 +55,10 @@ pub const PendingPipe = struct {
     cwd: []u8,
     inputs: []selection_pipe.Input,
     ranges: [panes.Text.max_selections]modal.Selection,
-    primary: u8,
+    primary: u16,
     explicit: bool,
     how: modal.Normal.PipeBehavior,
-    nranges: u8,
+    nranges: u16,
 
     pub fn deinit(wait: *PendingPipe, gpa: std.mem.Allocator) void {
         gpa.free(wait.command);
@@ -453,7 +453,7 @@ test "selection pipe replaces all ranges atomically and undo restores them" {
     p.update(.{ .pipe_resp = .{ .id = id, .success = true, .outputs = outputs } });
     try std.testing.expectEqualSlices(u8, "AA bb \n", pane.file.?.content);
     try std.testing.expectEqual(@as(usize, 1), pane.file.?.history.undo_len);
-    try std.testing.expectEqual(@as(u8, 1), pane.body.nsel);
+    try std.testing.expectEqual(@as(u16, 1), pane.body.nsel);
     try std.testing.expectEqual(@as(i32, 1), pane.body.cur_col);
     try std.testing.expectEqual(@as(i32, 6), pane.body.sels[0].col);
     try std.testing.expect(!denied.has_induced_failure);