NocoBase v2.1.0-beta.48: Added v2 client support for the async task manager topbar action

[client-v2] Support scan input for text fields (#9599) by @katherinehhh
[Async task manager] Added v2 client support for the async task manager topbar action. (#9707) by @jiannx
[Backup manager] Added v2 client runtime support for the backup manager plugin. (#9712) by @katherinehhh
[Data source: External NocoBase] Added a data source plugin: external NocoBase by @2013xile

[client-v2] Added support for disabling multiple selection in v2 popup select association fields. (#9730) by @katherinehhh
[File manager] Added internal upload subPath support for file manager. (#9731) by @mytharcher
[Variables and secrets] Environment variables ($env) can now be selected by flow-engine-based variable pickers in the v1 runtime. (#9728) by @Molunerfinn

[database] Fixed password fields not being hashed during bulk updates. (#9736) by @mytharcher
[client] Fixed popup subtable row actions hiding the whole subtable field when the action is hidden by linkage rules (#9717) by @katherinehhh
[AI employees] Improved AI employee data-query prompts to load the required skill before using query tools. (#9725) by @cgyrock
[Data source manager] Fixed stale title field display when reopening the v2 data source field configuration drawer after changing the title field. (#9720) by @katherinehhh
[Block: Map]
- Fixed map geometry fields missing from the v2 data source manager add-field menu after enabling the map plugin. (#9715) by @katherinehhh
- Fixed the unavailable DrawingManager issue in the v1 Google Maps block (#9735) by @katherinehhh
[Calendar] Fixed an issue where Details and Edit blocks could not be added in v2 calendar block detail drawers (#9729) by @jiannx