feat: 新增票据夹模块并优化 OCR 与员工画像服务

后端新增票据夹端点、数据模型和服务模块，优化 OCR 端点
Schema 和附件操作逻辑，完善员工行为画像服务和辅助函数，
前端新增票据夹视图和服务层，优化文档中心样式和侧边栏导
航，完善员工画像详情弹窗和权限控制，补充单元测试。

server/tests/test_employee_behavior_profile_service.py

@@ -264,6 +264,74 @@ def test_current_employee_profile_endpoint_resolves_login_user() -> None:
     payload = response.json()
     assert payload["employee_id"] == "emp-main"
     assert {item["profile_type"] for item in payload["profiles"]} >= {"expense", "ai_usage"}
+    ai_profile = next(item for item in payload["profiles"] if item["profile_type"] == "ai_usage")
+    assert ai_profile["metrics"]["ai_run_duration_ms"] == 120
+    assert payload["profile_tags"]
+    assert payload["radar"]["dimensions"]
+
+
+def test_current_admin_profile_endpoint_returns_account_usage_profile() -> None:
+    session_factory = build_session_factory()
+    with session_factory() as db:
+        seed_profile_data(db)
+        now = datetime.now(UTC)
+        for index in range(12):
+            run_id = f"run-admin-usage-{index}"
+            started_at = now - timedelta(days=1, minutes=index)
+            db.add(
+                AgentRun(
+                    run_id=run_id,
+                    agent="user_agent",
+                    source="user_message",
+                    user_id="admin",
+                    status="success",
+                    result_summary="管理员查看运行概览。",
+                    started_at=started_at,
+                    finished_at=started_at + timedelta(seconds=2),
+                    tool_calls=[
+                        AgentToolCall(
+                            run_id=run_id,
+                            tool_type="database",
+                            tool_name="agent_runs.list",
+                            request_json={"limit": 20},
+                            response_json={"ok": True},
+                            status="success",
+                            duration_ms=120,
+                        )
+                    ],
+                )
+            )
+        db.commit()
+
+    app = create_app()
+
+    def override_db() -> Generator[Session, None, None]:
+        db = session_factory()
+        try:
+            yield db
+        finally:
+            db.close()
+
+    app.dependency_overrides[get_db] = override_db
+    client = TestClient(app)
+    response = client.get(
+        "/api/v1/employee-profiles/me/latest",
+        params={
+            "scene": "operations",
+            "window_days": 90,
+            "expense_type_scope": "overall",
+        },
+        headers={"x-auth-username": "admin", "x-auth-name": "admin", "x-auth-is-admin": "true"},
+    )
+
+    assert response.status_code == 200
+    payload = response.json()
+    assert payload["employee_id"] == "admin"
+    assert payload["empty_reason"] == ""
+    assert [item["profile_type"] for item in payload["profiles"]] == ["ai_usage"]
+    metrics = payload["profiles"][0]["metrics"]
+    assert metrics["ai_run_count"] == 12
+    assert metrics["ai_run_duration_ms"] == 24000
     assert payload["profile_tags"]
     assert payload["radar"]["dimensions"]