listFilesAggregatedByEntity walks the relationship graph (symmetric
reach: clients <-> companies via memberships, <-> yachts via current
ownership) and groups results by source: DIRECTLY ATTACHED + FROM
COMPANY/YACHT/CLIENT. File-FK snapshot is the source of truth so
historical files survive yacht-ownership transfer. Each group caps at
20 rows + a total for "Show all (N)" drill-through. Defense-in-depth
port_id filter at every join.
listInflightWorkflowsAggregatedByEntity reuses the same graph walk
for in-flight signing workflows (draft/sent/partially_signed only).
Completed workflows are hidden — they surface via their signed-PDF
file row instead.
applyEntityFkFromFolder auto-sets the matching entity FK on the file
row when the upload target is a system-managed entity subfolder (E8).
Wired into uploadFile; validator extended with folderId field.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Matt
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