Give Control Center items distinct icons

Every Control Center module shares one app icon, so the tray was a wall
of identical tiles. Map each item's title to its own SF Symbol so Wi-Fi,
Battery, Now Playing and friends are distinguishable at a glance.

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Assisted-by: Crush:deepseek-v4.1-flash

AGENTS.md

@@ -42,6 +42,10 @@ executable SwiftPM package, no external dependencies (all Apple frameworks).
   including ones not in the bar, which are parked off-screen at `y≈982`.
   `enumerate()` drops items whose AX position `y > 60` and de-duplicates by
   title per app, otherwise the tray fills with identical "Control Center" tiles.
+- Icons: every Control Center module shares the same app icon, so
+  `symbolName(for:)` maps titles (Wi‑Fi, Battery, Now Playing, …) to distinct SF
+  Symbols, falling back to the owning app's icon. Note the non-breaking hyphen
+  in "Wi‑Fi" (`\u{2011}`) is normalised before matching.
 - Reading another app's UI is the only TCC permission needed; there is no Screen
   Recording or Apple Events usage.