enhancement(deps): prefill package suggestions when new imports are added #777
Description
Reported in the March 13, 2026 meeting notes and bug bash feedback.
Current behavior
When a user adds a new import in a cell, dependency setup is still largely manual.
Requested improvement
Prompt the user with a package viewer that has likely dependencies pre-filled from the imports they just added.
Constraints
This should stay user-mediated:
- No fully automatic install.
- The user still needs to approve installation.
- The user may still need to restart the kernel after dependency changes.
Why this matters
The feedback was positive on inline dependency support, but users still want a faster path from "I typed an import" to "I can install the missing package".