feat(桌面与监控): 完善工作台导航和登录活动定位

- 优化桌面标签、上下文标题、前进后退、导航栏隐藏和原生菜单体验

- 补充登录会话 IP 采集、地理位置回退、管理端展示及数据库迁移

- 更新桌面发布检查、运维文档和前后端测试覆盖

backend/alembic/versions/20260713_01_add_login_session_ip.py

@@ -0,0 +1,25 @@
+"""Add the server-observed login IP to user login sessions.
+
+Revision ID: 20260713_01
+Revises: 20260710_04
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+
+revision = "20260713_01"
+down_revision = "20260710_04"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "user_login_sessions",
+        sa.Column("login_ip", sa.String(length=45), nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("user_login_sessions", "login_ip")