feat(ui): complete retail quick-slot input

Port global toolbar use/select/create actions, migrate the collapsed Ctrl-number bindings, and route them through a focused retained-UI controller. Preserve shortcut aliases as aliases across inventory and paperdoll drops with retail's neutral/accept/reject drag states, preventing physical item moves such as unwielding an equipped helmet.

Co-Authored-By: Codex <codex@openai.com>

src/AcDream.UI.Abstractions/Input/InputAction.cs

@@ -8,12 +8,10 @@ namespace AcDream.UI.Abstractions.Input;
 /// debug bindings that have no retail equivalent.
 ///
 /// <para>
-/// K.1a defines the enum but only the existing acdream-current chords
-/// resolve to actions; K.1c flips the bindings table to the full retail
-/// preset. Several actions in this enum (<c>UseQuickSlot_*</c>,
-/// <c>Combat*</c>, <c>UseSpellSlot_*</c>) have NO subscribers in K.1 —
-/// the chord fires the event but nothing acts on it. Phase L panels
-/// will subscribe.
+/// K.1a defined the enum and K.1c flipped the bindings table to the full
+/// retail preset. Runtime controllers subscribe by subsystem; actions whose
+/// owning panel has not landed yet (for example <c>UseSpellSlot_*</c>) may
+/// intentionally remain undispatched.
 /// </para>
 /// </summary>
 public enum InputAction
@@ -142,12 +140,21 @@ public enum InputAction
     UseQuickSlot_7,
     UseQuickSlot_8,
     UseQuickSlot_9,
+    SelectQuickSlot_1,
+    SelectQuickSlot_2,
+    SelectQuickSlot_3,
+    SelectQuickSlot_4,
+    SelectQuickSlot_5,
+    SelectQuickSlot_6,
+    SelectQuickSlot_7,
+    SelectQuickSlot_8,
+    SelectQuickSlot_9,
     UseQuickSlot_14,
     UseQuickSlot_15,
     UseQuickSlot_16,
     UseQuickSlot_17,
     UseQuickSlot_18,
-    /// <summary>Drop-target shortcut creation (retail 0 / drag-drop).</summary>
+    /// <summary>Create a toolbar shortcut to the selected object (retail 0).</summary>
     CreateShortcut,
 
     // ── Chat ──────────────────────────────────────────────