Mini.zig is mini.zig: a file of functions and no fields takes a namespace's lowercase name

The naming the split agreed on, deferred until now; panes.mini is its name at its importers. File.zig keeps its alias line (const Mini = panes.mini) so the file another agent is working in changes by that line alone. The served sources list and docs/design.typ name the new file. No behaviour changes; test/perf.zig's two references change, and since the perf harness is keyed by its own text, its three baselines are recorded again (under other agents' builds, so a little slower).

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

1 files changed, 2 insertions, 2 deletions

diff --git a/src/panes.zig b/src/panes.zig
index 32ad7b6b..b6fdc31a 100644
--- a/src/panes.zig
+++ b/src/panes.zig
@@ -636,7 +636,7 @@ pub const File = @import("File.zig");
 
 pub const Output = @import("Output.zig");
 
-pub const Mini = @import("Mini.zig");
+pub const mini = @import("mini.zig");
 
 pub const Image = @import("image.zig");
 
@@ -649,7 +649,7 @@ test {
     _ = Text;
     _ = File;
     _ = Output;
-    _ = Mini;
+    _ = mini;
     _ = Image;
     _ = Pdf;
     _ = Terminal;