feat(worker): ClaudeCodeAdapter runs claude -p stream-json in the per-user box

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

@@ -1,6 +1,7 @@
 import { describe, expect, test } from 'vitest';
 
 import {
+  normalizeClaudeJsonLine,
   normalizeCodexJsonLine,
   normalizeOpenCodeEvent,
   normalizeOpenCodeRunLine,
@@ -329,4 +330,73 @@ describe('agent event normalization', () => {
       status: 'not json at all',
     });
   });
+
+  test('normalizes Claude Code stream-json output lines', () => {
+    expect(
+      normalizeClaudeJsonLine(
+        JSON.stringify({
+          type: 'system',
+          subtype: 'init',
+          session_id: 'abc',
+        }),
+      ),
+    ).toContainEqual({ kind: 'session', sessionId: 'abc' });
+
+    expect(
+      normalizeClaudeJsonLine(
+        JSON.stringify({
+          type: 'assistant',
+          message: {
+            content: [
+              { type: 'text', text: 'hello ' },
+              { type: 'text', text: 'world' },
+            ],
+          },
+        }),
+      ),
+    ).toContainEqual({ kind: 'assistant_delta', content: 'hello world' });
+
+    expect(
+      normalizeClaudeJsonLine(
+        JSON.stringify({
+          type: 'assistant',
+          message: {
+            content: [
+              { type: 'tool_use', name: 'Bash', input: { command: 'ls' } },
+            ],
+          },
+        }),
+      ),
+    ).toContainEqual({
+      kind: 'tool_started',
+      name: 'Bash',
+      input: JSON.stringify({ command: 'ls' }),
+    });
+
+    expect(
+      normalizeClaudeJsonLine(
+        JSON.stringify({
+          type: 'result',
+          subtype: 'success',
+          result: 'final text',
+          session_id: 'abc',
+        }),
+      ),
+    ).toContainEqual({ kind: 'assistant_completed', content: 'final text' });
+
+    expect(
+      normalizeClaudeJsonLine(
+        JSON.stringify({
+          type: 'result',
+          subtype: 'error_max_turns',
+          result: 'hit the turn limit',
+        }),
+      ),
+    ).toContainEqual({ kind: 'error', message: 'hit the turn limit' });
+
+    expect(normalizeClaudeJsonLine('not json at all')).toContainEqual({
+      kind: 'status',
+      status: 'not json at all',
+    });
+  });
 });