Splits the attachments experience in two:
Top panel (AttachmentsPanel):
- Renamed "Attachments & Links" → "General Assets" with a subtitle
calling out the split ("Applies to the whole deliverable —
stage-specific assets live on each pipeline stage").
- List filtered to only show attachments with
stageDefinitionId == null. Uploads from here default to no-stage.
- Empty-state copy updated to describe the new purpose.
Per-stage indicator (new StageAttachmentIndicator):
- Small paperclip icon + count rendered on each stage row, right
alongside the status badge.
- Zero + canEdit: paperclip + small "+" so the affordance to add is
still visible. Zero + read-only: component renders nothing so
CLIENT_VIEWERs don't see empty affordances they can't act on.
- Click opens a Popover listing attachments tagged to that stage,
with inline upload + link-add buttons at the bottom. Uploads auto-
tag to the stage via useUploadFileAttachment({ stageDefinitionId })
— the mutation already accepted this field, no API change needed.
- Delete allowed on rows from the popover, same canEdit gate.
- Figma embeds preview inline in the popover just like the main panel.
No schema / migration / API / service changes — DeliverableAttachment
already had the stageDefinitionId field, the POST endpoint already
accepted it, and useAttachments already returned stageDefinition.
Pure UI work; rides on the existing query cache so the indicator
counts update instantly when the main panel or a sibling stage
popover writes.
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