refactor: replace store-based keyboard action requests with direct dispatcher and simplify agent attention clearing

packages/app/src/keyboard/keyboard-action-dispatcher.ts

@@ -0,0 +1,75 @@
+export type KeyboardActionScope =
+  | "global"
+  | "message-input"
+  | "sidebar"
+  | "workspace";
+
+export type KeyboardActionId =
+  | "message-input.focus"
+  | "message-input.dictation-toggle"
+  | "message-input.dictation-cancel"
+  | "message-input.voice-toggle"
+  | "message-input.voice-mute-toggle";
+
+export type KeyboardActionDefinition = {
+  id: KeyboardActionId;
+  scope: KeyboardActionScope;
+};
+
+export type KeyboardActionHandler = {
+  handlerId: string;
+  actions: readonly KeyboardActionId[];
+  enabled: boolean;
+  priority: number;
+  isActive?: () => boolean;
+  handle: (action: KeyboardActionDefinition) => boolean;
+};
+
+type KeyboardActionRegistryEntry = KeyboardActionHandler & {
+  registeredAt: number;
+};
+
+export function createKeyboardActionDispatcher() {
+  let nextRegistrationOrder = 1;
+  const handlers = new Map<string, KeyboardActionRegistryEntry>();
+
+  return {
+    registerHandler(handler: KeyboardActionHandler) {
+      handlers.set(handler.handlerId, {
+        ...handler,
+        registeredAt: nextRegistrationOrder++,
+      });
+
+      return () => {
+        const current = handlers.get(handler.handlerId);
+        if (!current) {
+          return;
+        }
+        handlers.delete(handler.handlerId);
+      };
+    },
+
+    dispatch(action: KeyboardActionDefinition): boolean {
+      const candidates = Array.from(handlers.values())
+        .filter((handler) => handler.actions.includes(action.id))
+        .filter((handler) => handler.enabled)
+        .filter((handler) => (handler.isActive ? handler.isActive() : true))
+        .sort((left, right) => {
+          if (left.priority !== right.priority) {
+            return right.priority - left.priority;
+          }
+          return right.registeredAt - left.registeredAt;
+        });
+
+      for (const handler of candidates) {
+        if (handler.handle(action)) {
+          return true;
+        }
+      }
+
+      return false;
+    },
+  };
+}
+
+export const keyboardActionDispatcher = createKeyboardActionDispatcher();