## Summary
- Add default visible view fields for `timelineActivity`, `attachment`,
`noteTarget`, `taskTarget`, and `workspaceMember` objects so they
display useful columns out of the box
- Standardize morph relation field labels to "Target" with
`IconArrowUpRight` for consistency across all pivot/junction tables
- Mark deprecated fields (`fullPath`, `fileCategory`,
`linkedRecordCachedName`, `linkedRecordId`, `linkedObjectMetadataId`) as
`isSystem` to hide them from the UI column picker
- Fix morph field deduplication logic (`pickMorphGroupSurvivor`) to
prefer active, non-system fields over auto-generated system fields from
custom objects
- Migrate attachment seeds from legacy `fullPath`/`fileCategory` to the
new `FILES` field type, creating proper `FileEntity` records in
`core.file` via `fileStorageService.writeFile()`
- Restore `customDomain` in the user query fragment
<img width="825" height="754" alt="Screenshot 2026-02-15 at 15 44 27"
src="https://github.com/user-attachments/assets/9596a3dd-8d3a-43c0-925a-0adef9ee68a8"
/>
<img width="736" height="731" alt="Screenshot 2026-02-15 at 15 44 13"
src="https://github.com/user-attachments/assets/cd1a66c5-731d-43e6-bbc3-703cbeda1652"
/>
<img width="722" height="757" alt="Screenshot 2026-02-15 at 15 44 03"
src="https://github.com/user-attachments/assets/b5210546-6a40-4940-8e4f-874818a614fb"
/>
<img width="907" height="757" alt="Screenshot 2026-02-15 at 15 43 52"
src="https://github.com/user-attachments/assets/ead5b9a8-1989-4d68-9640-583da6233711"
/>
<img width="1002" height="731" alt="Screenshot 2026-02-15 at 15 43 38"
src="https://github.com/user-attachments/assets/38accb8c-f5d5-4bfc-b245-06389849810b"
/>
<!-- CURSOR_SUMMARY -->
---
> [!NOTE]
> **Medium Risk**
> Touches migration/upgrade commands that write to core metadata tables
and adjust field/view definitions, plus changes dev seeding to create
`core.file` records; mistakes could affect UI visibility or seed
integrity across workspaces.
>
> **Overview**
> Adds a new `upgrade:1-18:backfill-standard-views-and-field-metadata`
command that, per workspace, marks specific fields as `isSystem`,
normalizes morph-relation field `label`/`icon` to
`Target`/`IconArrowUpRight`, and backfills missing standard
`view`/`viewField` rows for `attachment`, `noteTarget`, `taskTarget`,
`timelineActivity`, and `workspaceMember`, followed by cache
invalidation + metadata version bump.
>
> Refactors morph-relation deduplication to pick a single survivor per
`morphId` using a new `pickMorphGroupSurvivor` rule (prefer active +
non-system, then smallest id), with new unit tests.
>
> Updates standard metadata generators and snapshots to reflect the new
system flags and default view fields, and rewrites attachment dev
seeding to populate the new `file` (FILES field) JSON and create
corresponding `core.file` entries via `FileStorageService.writeFile`
with workspace-scoped file IDs.
>
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
b1939bbf6f8cce294f9b4cdec06b19778daa205e. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Félix Malfait