v0.7.50

## Features

- feat(library): What Is an AI Agent? Definition, How It Works, and Examples (#6115)
- feat(custom-blocks): log and bill child runs in the publisher's workspace (#6023)
- feat(tables): add currency column type on a new column-type registry (#6106)
- feat(function): custom sandboxes (#6071)
- feat(model): sim auto model (#6103)
- feat(tables): typed predicate filter grammar, cursor pagination, and the v2 table surface (#6067)

## Improvements

- improvement(function): secrets access dropdown (#6118)
- improvement(admin): update defaults for better UX (#6112)
- perf(tests): mock the tool registry globally, drop the dead deps optimizer (#6117)
- improvement(security): isolated-vm env construction (v8s escape case) (#6116)

## Bug Fixes

- fix(uploads): set Content-Type once on presigned PUTs; document x-goog-meta-folderid for GCS CORS (#6121)
- fix(tables): refuse scale suffixes and resolve the lone-separator ambiguity (#6111)
- fix(demo): exempt landing routes from COEP so the Cal.com booker loads on soft nav (#6110)
- fix(emcn): stop the tab strip scrolling vertically by a pixel (#6113)
- fix(desktop): clear the traffic lights on every full-viewport surface, and enumerate them in CI (#6109)
- fix(invitations): report every reason a batch of invites failed (#6093)
- fix(integrations): keep the Atlassian coverage hint visible, and trim dead surface (#6105)
- fix(desktop): keep page headers clear of the traffic lights (#6098)
- fix(integrations): show family service accounts on every product they authenticate (#6102)
- fix(sidebar): stop the workspace switcher stranding a phantom hover (#6096)
- fix(settings): add bottom padding to settings sidebar (#6097)

## Contributors

- @Sg312
- @TheodoreSpeaks
- @icecrasher321
- @waleedlatif1

[View changes on GitHub](https://github.com/simstudioai/sim/compare/v0.7.49...v0.7.50)