feat(cli): add ACP tools, interactions and session-scoped MCP

apps/desktop/e2e/side-chat-followups.spec.ts

@@ -105,12 +105,15 @@ test('Side Chat follow-ups survive queue actions, Host handoffs and reconnect',
       return created[0]!.id;
     }, originalSessionIds);
     const queued = companion.locator('.maka-composer-queue');
-    for (const text of ['first follow-up', 'second follow-up', 'retract this follow-up']) {
+    const queueFollowUp = async (text: string): Promise<void> => {
       await sideComposer.fill(text);
       // The queue is optimistic; its appearance does not settle send admission.
       await awaitSendReady(companion);
       await sideComposer.press('Enter');
       await expect(queued).toContainText(text);
+    };
+    for (const text of ['first follow-up', 'second follow-up', 'retract this follow-up']) {
+      await queueFollowUp(text);
     }
     await expect(queued.locator('.maka-composer-queue-text')).toHaveText([
       'first follow-up', 'second follow-up', 'retract this follow-up',
@@ -121,6 +124,9 @@ test('Side Chat follow-ups survive queue actions, Host handoffs and reconnect',
     await edit.press('Enter');
     await expect(queued.locator('.maka-composer-queue-text').first()).toHaveText('edited first follow-up');
     const grips = queued.locator('[draggable="true"]');
+    // The Host projection can update before the edit request's pending UI
+    // state settles. A draggable grip is the user-visible readiness boundary.
+    await expect(grips).toHaveCount(3);
     await grips.nth(1).dragTo(grips.nth(0));
     await expect(queued.locator('.maka-composer-queue-text')).toHaveText([
       'second follow-up', 'edited first follow-up', 'retract this follow-up',
@@ -155,10 +161,7 @@ test('Side Chat follow-ups survive queue actions, Host handoffs and reconnect',
     await sideComposer.press('Enter');
     await expect(companion.getByRole('button', { name: '停止', exact: true })).toBeVisible();
     for (const text of ['successor one', 'successor two']) {
-      await sideComposer.fill(text);
-      await awaitSendReady(companion);
-      await sideComposer.press('Enter');
-      await expect(queued).toContainText(text);
+      await queueFollowUp(text);
     }
     await page.screenshot({ path: testInfo.outputPath('side-chat-queue.png'), fullPage: true });
     await sideComposer.fill('release the held response');
@@ -176,10 +179,7 @@ test('Side Chat follow-ups survive queue actions, Host handoffs and reconnect',
     await sideComposer.press('Enter');
     await expect(companion.getByRole('button', { name: '停止', exact: true })).toBeVisible();
     for (const text of ['reconnected successor one', 'reconnected successor two']) {
-      await sideComposer.fill(text);
-      await awaitSendReady(companion);
-      await sideComposer.press('Enter');
-      await expect(queued).toContainText(text);
+      await queueFollowUp(text);
     }
     await armConnectionGap(app);
     // Capture the actual Desktop client before closing its transport.

packages/cli/src/__tests__/acp-environment-mcp-fixture.ts

@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { createHash } from 'node:crypto';
+
+// The manager redacts configured environment values in tool output. Observe
+// each child process's environment through a derived value instead.
+process.env.ACP_SESSION_FINGERPRINT = createHash('sha256')
+  .update(process.env.ACP_SESSION_SENTINEL ?? 'missing')
+  .digest('hex');
+
+await import('@maka/mcp/test-only/stdio-server');