chore: include pre-built dist for github install

dist/tools/shared/semaphore.d.ts

@@ -0,0 +1,14 @@
+/**
+ * Simple counting semaphore to limit concurrent process execution.
+ * Used to prevent multiple ripgrep processes from saturating CPU.
+ */
+export declare class Semaphore {
+    private readonly max;
+    private queue;
+    private running;
+    constructor(max: number);
+    acquire(): Promise<void>;
+    release(): void;
+}
+/** Global semaphore limiting concurrent ripgrep processes to 2 */
+export declare const rgSemaphore: Semaphore;