feat: 通过绑定的工作区路由 Core 笔记并保存持久操作回执

backend/tests/test_desktop_notes.py

@@ -0,0 +1,44 @@
+"""Host-only adapter contracts use fake documents; process coverage lives in Rust."""
+from types import SimpleNamespace
+import pytest
+import asyncio
+from app import host_bridge
+from app.errors import ApiError
+from app.services import desktop_notes, note_service
+
+
+def test_desktop_note_read_never_falls_back_without_bound_vault(monkeypatch):
+    monkeypatch.setattr('app.config.get_settings', lambda: SimpleNamespace(environment='desktop'))
+    token = host_bridge.vault_id.set(None)
+    try:
+        with pytest.raises(ApiError, match='授权工作区') as error:
+            asyncio.run(note_service.get_note('note-from-old-core-index'))
+        assert error.value.code == 'WORKSPACE_NOT_OPEN'
+    finally:
+        host_bridge.vault_id.reset(token)
+
+
+def test_update_preserves_tags_and_carries_explicit_cas_and_operation(monkeypatch):
+    document = dict(file_id='stable-id', path='notes/a.md', hash='observed-hash',
+                    content='---\ntags: [original]\n---\nold', created_at=0, updated_at=1)
+    calls = []
+    def call(method, **params):
+        calls.append((method, params))
+        return document if method == 'read' else {'state': 'committed'}
+    monkeypatch.setattr(desktop_notes, 'call', call)
+    token = host_bridge.operation_id.set('b9e1da18-c442-4c1c-a7d7-4ac83b58c849')
+    try:
+        asyncio.run(desktop_notes.mutate('update_note', 'stable-id', markdown='new body', expected_content_hash='caller-hash'))
+    finally:
+        host_bridge.operation_id.reset(token)
+    write = next(params for method, params in calls if method == 'write')
+    assert write['expected'] == 'caller-hash'
+    assert write['operation_id'] == 'b9e1da18-c442-4c1c-a7d7-4ac83b58c849'
+    assert 'original' in write['content'] and write['content'].endswith('new body')
+
+
+def test_metadata_keeps_unrelated_frontmatter_and_rejects_non_mapping():
+    result = desktop_notes.metadata('---\ncustom: keep\ntags: [old]\n---\nbody', None, [])
+    assert 'custom: keep' in result and 'tags: []' in result and result.endswith('body')
+    with pytest.raises(ApiError):
+        desktop_notes.metadata('---\ntitle: [broken\n---\nbody', 'new', None)