feat(04-02): use user context for project selection in generic commands

- Generic commands now use project from user context first
- Fall back to context param or default if no user context
- Add users_root parameter to Orchestrator for test isolation
- Update integration tests to use tmp_users_root fixture

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

gsd-openclaw/tests/test_orchestrator.py

@@ -345,7 +345,7 @@ class TestIntegrationFlows:
     """Integration-style tests for complete flows."""
 
     @pytest.fixture
-    def orchestrator_with_real_components(self):
+    def orchestrator_with_real_components(self, tmp_users_root):
         """Create orchestrator with real components (mock only tmux)."""
         from gsd_openclaw.orchestrator import Orchestrator
         from gsd_openclaw.response_formatter import FeishuResponseFormatter
@@ -359,7 +359,8 @@ class TestIntegrationFlows:
 
         orchestrator = Orchestrator(
             tmux_manager=mock_tmux_manager,
-            formatter=formatter
+            formatter=formatter,
+            users_root=tmp_users_root
         )
         orchestrator.approval_handler = approval_handler
         orchestrator.executor = MagicMock()