Make the macOS shell a first-class host

Pty children are exec'd with their own TERM/COLORTERM/TERM_PROGRAM instead of
inheriting a .app launch's empty environment, and ttyTaken finally answers on
darwin — libproc walks the tty's foreground process group — so Escape reaches
the child and Exec stops believing every pane sits at its prompt. The
occupancy suite runs on both platforms now.

The workspace tag row moves into the native menu bar as a Builtins menu.
-Dworkspace-tag (default off for -Dplatform=macos, on everywhere else) drives
it, and Pardes.topBarHeight replaces the TOPBAR_H constant so the core stops
reserving the row.

The view pins every variable-font axis to the file's own default (Maple Mono
came up Thin otherwise), shapes ligatures, carries per-shape pointer cursors,
and draws the look-hover affordance as refracted glass. Tag rows fill edge to
edge, with the anchor box painted back on top of that fill and its mode glyph
centred on the same square. Theme accents re-saturated across the set.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

1 files changed, 16 insertions, 2 deletions

diff --git a/src/macos/Sources/AppDelegate.swift b/src/macos/Sources/AppDelegate.swift
index cbe9cdc9..3cce7592 100644
--- a/src/macos/Sources/AppDelegate.swift
+++ b/src/macos/Sources/AppDelegate.swift
@@ -310,6 +310,16 @@ final class AppDelegate: NSObject, NSApplicationDelegate, PardesViewDelegate {
         file.addItem(withTitle: "Close Window",
                      action: #selector(NSWindow.performClose(_:)), keyEquivalent: "w")
 
+        // The workspace tag row's commands, in the place macOS keeps window
+        // commands. The build hands that row to this menu bar (see
+        // docs/macos.md): the words are the same builtins the tag carried,
+        // spelled exactly as a tag Exec would type them, and nothing here is
+        // editable — the menu is the tag's buttons, not the tag.
+        let builtins = submenu("Builtins", of: main)
+        for word in ["Newcol", "Joincol", "Find", "Grep", "Changelog",
+                     "Dump", "NextColor", "Debug", "Kill"] {
+            builtins.addItem(command(word, #selector(menuBuiltin(_:)), ""))
+        }
         let edit = submenu("Edit", of: main)
         // Paste and nothing else. Copy, Cut, Undo and Select All have no
         // builtin behind them — the core yanks into the clipboard on its own
@@ -379,13 +389,17 @@ final class AppDelegate: NSObject, NSApplicationDelegate, PardesViewDelegate {
         // here would hide half of what Look does.
         panel.canChooseDirectories = true
         panel.allowsMultipleSelection = true
-        panel.resolvesAliases = true
-        guard panel.runModal() == .OK else { return }
         for url in panel.urls where url.isFileURL {
             look(url.path)
         }
     }
 
+    /// Any workspace-tag word. The title is the builtin's own spelling, so
+    /// this is the same `run` a tag Exec performs and there is no second
+    /// vocabulary to keep in step.
+    @objc private func menuBuiltin(_ sender: NSMenuItem) { run(sender.title) }
+
+
     @objc private func menuNew(_ sender: Any?) { run("New") }
     @objc private func menuSave(_ sender: Any?) { run("Save") }
     @objc private func menuHelp(_ sender: Any?) { run("Help") }