feat(worker): OpenCodeAdapter runs opencode in the per-user box (no side container)

apps/agent-worker/tests/unit/agent-events.test.ts

@@ -3,6 +3,7 @@ import { describe, expect, test } from 'vitest';
 import {
   normalizeCodexJsonLine,
   normalizeOpenCodeEvent,
+  normalizeOpenCodeRunLine,
 } from '../../src/agent-events';
 
 describe('agent event normalization', () => {
@@ -291,4 +292,41 @@ describe('agent event normalization', () => {
       externalMessageId: 'message-2',
     });
   });
+
+  test('normalizes opencode run --format json output lines', () => {
+    expect(
+      normalizeOpenCodeRunLine(
+        JSON.stringify({
+          type: 'message.part.delta',
+          properties: { part: { text: 'hi' }, messageID: 'm1' },
+        }),
+      ),
+    ).toContainEqual({
+      kind: 'assistant_delta',
+      content: 'hi',
+      externalMessageId: 'm1',
+    });
+
+    expect(
+      normalizeOpenCodeRunLine(
+        JSON.stringify({
+          sessionID: 'ses_abc',
+          parts: [{ text: 'final answer' }],
+        }),
+      ),
+    ).toEqual(
+      expect.arrayContaining([
+        { kind: 'session', sessionId: 'ses_abc' },
+        expect.objectContaining({
+          kind: 'assistant_completed',
+          content: 'final answer',
+        }),
+      ]),
+    );
+
+    expect(normalizeOpenCodeRunLine('not json at all')).toContainEqual({
+      kind: 'status',
+      status: 'not json at all',
+    });
+  });
 });