Explore pipelined image transfer instead of zip-then-send

[gsrunion]

Proposal:

• Investigate transfer modes that stream or incrementally transfer images as they are captured, instead of waiting for a full zip/export step.

Why:

• lower end-to-end latency
• overlap capture with workstation-side processing
• reduce all-or-nothing behavior on large scans
• improve recovery/resume behavior

Possible directions:

• per-image upload on capture
• manifest-based sync
• resumable transfer
• background transfer during scan

Important considerations:

• preserve image/metadata association
• avoid exposing partial files incorrectly
• keep compatibility with existing export flows

Note:

• this is an exploration issue, not a request to remove zip export.