chore(integration): snapshot local main worktree

tests/unit/pi-worker-pool.test.ts

@@ -148,6 +148,38 @@ class FakeWorker implements PiConversationWorker {
 }
 
 describe('Pi worker pool', () => {
+  it('does not charge logical threads as OS processes in shared-server mode', async () => {
+    const processBudget = new PiProcessBudget(1);
+    const workers: FakeWorker[] = [];
+    const pool = new PiWorkerPool({
+      processMode: 'shared',
+      processBudget,
+      maxIdle: 4,
+      openWorker: async ({ conversation: input }) => {
+        const worker = new FakeWorker(`thread-${input.conversationId}`);
+        workers.push(worker);
+        return {
+          worker,
+          session: {
+            piSessionId: `session-${input.conversationId}`,
+            sessionKey: `key-${input.conversationId}`,
+          },
+        };
+      },
+    });
+
+    await Promise.all([
+      pool.prepare(conversation('conversation-a')),
+      pool.prepare(conversation('conversation-b')),
+      pool.prepare(conversation('conversation-c')),
+    ]);
+
+    expect(processBudget.activeCount).toBe(0);
+    expect(workers).toHaveLength(3);
+    await pool.shutdown();
+    expect(workers.every((worker) => worker.stopped)).toBe(true);
+  });
+
   it('retains top-level ownership after a mutation confirmation timeout', async () => {
     const workers = new Map<string, FakeWorker>();
     const pool = new PiWorkerPool({