Migrate widgets to anywidget

[geostats-BSY]

Summary

Consolidates all notebook widgets into the evo-widgets package, adding modern anywidget-based interactive widgets (ServiceManagerWidget, FeedbackWidget) and enabling automatic HTML formatter registration on import.

Changes
New Features

• Interactive widgets — ServiceManagerWidget, FeedbackWidget, OrgSelectorWidget, HubSelectorWidget, WorkspaceSelectorWidget now available from evo.widgets

• Auto-registration — HTML formatters for typed objects register automatically when importing from evo.widgets in IPython/Jupyter (no %load_ext required)
  Modern widget framework — Built on anywidget for improved cross-environment compatibility

Summary
Consolidates all notebook widgets into the evo-widgets package, adding modern anywidget-based interactive widgets (ServiceManagerWidget, FeedbackWidget) and enabling automatic HTML formatter registration on import.

Changes

• Interactive widgets — ServiceManagerWidget, FeedbackWidget, OrgSelectorWidget, HubSelectorWidget, WorkspaceSelectorWidget now available from evo.widgets
• Auto-registration — HTML formatters for typed objects register automatically when importing from evo.widgets in IPython/Jupyter (no %load_ext required)
• Modern widget framework — Built on anywidget for improved cross-environment compatibility

Breaking Changes

• evo.notebooks widgets are deprecated — imports still work but emit DeprecationWarning
• %load_ext evo.widgets is no longer required (but still supported)

Migration

Before:

from evo.notebooks import ServiceManagerWidget, FeedbackWidget
%load_ext evo.widgets

After

from evo.widgets import ServiceManagerWidget, FeedbackWidget
# (auto-registers formatters)

Updated Files

New: _interactive — widget implementations
New: static — CSS/JS assets
Updated: pyproject.toml — added [notebooks] optional dependencies
Updated: 30+ notebooks — migrated to evo.widgets imports, removed %load_ext cells
Updated: README.md, mkdocs documentation
Moved: notebook-utilities.ipynb from evo-sdk-common to evo-widgets

Dependencies (optional, under [notebooks])
anywidget>=0.9
traitlets>=5.0
python-dotenv
evo.notebooks is deprecated — imports still work but emit DeprecationWarning
%load_ext evo.widgets is no longer required (but still supported)

Checklist

• [ x] I have read the contributing guide and the code of conduct

[tim-hamblin-seequent]

I'm no js expert so I can't comment much on these files, but would adding these resources as actual files to the repo be a bit cleaner? Especially to reduce the duplication of the loading GIF?

[geostats-BSY]

If I remember right anywidget doesn't permit serving the image directly. Could store the image then read and translate to base64 as needed to serve it client side... but not sure that is better?

[tim-hamblin-seequent]

Can we see some screenshots on the PR of the new widgets?

[geostats-BSY]

yes, yes you can! but you may be dissapointed they look much like the old widgets. Will add to the PR after cleaning up re comments etc

[denis-simo]

Should be stored in assets along with other styles.css .

[tim-hamblin-seequent]

Looks like there are tests/linting that needs to be fixed up as well

[PaulCaygill-Seequent]

Just going to publish the few comments I have so far, as you seem to be actively working on this (and I've already had to delete one or two). I'd suggested a few tweaks to make code clearer - the PR is quite large though so I've only been able to cover a little bit with limited context, take it with a grain of salt

[denis-simo]

HUB is no longer shown. It disappeared on the main branch a few weeks before PDAC demo.

[denis-simo]

Load local image asset in the client. Hardcoding in the contents is not the way.

[denis-simo]

The old command does not just load the widgets, it loads HTML formatting for objects.
If we are replicating the equivalent setup, then we would want from evo import widgets - so auto format if the user imports widgets rather than a sepcific service manager widget.