Move helix normal mode out of pardes.zig into normal.zig

Pure move, no behaviour change: the key-to-role matching (isPrefix,
roleBindingName, normalInput), multiOnce, the selection regex prompt
(startSelRegex, selRegexArmed, applySelRegex), KeyState, Replay and
replaySels, handleNormal, executeNormalAction and handlePdfNormal, with two
tests, go verbatim to normal.zig.

The methods become free functions taking `p: *Pardes`; their 22 call sites
(handleKey, the mouse, look walk, lsp, runBuiltin, body drawing and edit.zig)
change from `p.handleNormal(..)` to `normal.handleNormal(p, ..)`.
test/lspbench.zig's second anchor follows its needle into src/normal.zig.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/src/body_layer.zig b/src/body_layer.zig
index 8c345b97..6bac7018 100644
--- a/src/body_layer.zig
+++ b/src/body_layer.zig
@@ -5,6 +5,7 @@
 //! and cursor.
 const std = @import("std");
 const pardes = @import("pardes.zig");
+const normal = @import("normal.zig");
 const edit = @import("edit.zig");
 const config = @import("config.zig");
 const limits = @import("memory.zig").limits;
@@ -386,7 +387,7 @@ pub fn renderBody(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rect, id
             }
         }
     }
-    const preview = Pardes.selRegexArmed(pane) != null;
+    const preview = normal.selRegexArmed(pane) != null;
     const show_prim = (pane.mode == .normal and pane.vsel.active) or preview or
         (modal_hover and pane.vsel.active);
     const show_extra = pane.mode != .tty and pane.nsel > 0;