feat(notes): aggregate-on-read for yachts, companies, residential clients

Extends the listForClientAggregated pattern to three new symmetric
helpers in notes.service so the Notes tab on yacht / company /
residential-client detail pages surfaces the full timeline (own notes
+ related-entity notes) instead of just rows on the entity itself.

  - listForYachtAggregated: yacht own + owner client (when ownership
    is polymorphic 'client') + linked interest notes.
  - listForCompanyAggregated: company own + company-owned yacht notes
    + interests linked to those yachts.
  - listForResidentialClientAggregated: own + residential interests.

Generalises NotesList so aggregate=true works for all four entity
types via SELF_SOURCE / AGGREGATABLE / SOURCE_BADGE_CLASS / SOURCE_LABEL
maps; cross-source notes render with a coloured chip and are read-only
(rep edits on the source entity's page so the right timeline records
the change).

Wires ?aggregate=true into the yacht / company / residential-client
notes routes; the yacht / company / residential-client tabs now pass
aggregate. Drops the legacy single-textarea spots on the companies
overview tab and the residential-interest "Initial brief" row in
favour of the threaded feed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/companies/company-tabs.tsx

@@ -169,17 +169,6 @@ function OverviewTab({ companyId, company }: { companyId: string; company: Compa
         </dl>
       </div>
 
-      {/* Notes */}
-      <div className="space-y-1 md:col-span-2">
-        <h3 className="text-sm font-medium mb-2">Notes</h3>
-        <InlineEditableField
-          variant="textarea"
-          value={company.notes}
-          onSave={save('notes')}
-          emptyText="No notes - click to add"
-        />
-      </div>
-
       {/* Tags */}
       <div className="space-y-1 md:col-span-2">
         <h3 className="text-sm font-medium mb-2">Tags</h3>
@@ -236,7 +225,12 @@ export function getCompanyTabs({
       id: 'notes',
       label: 'Notes',
       content: (
-        <NotesList entityType="companies" entityId={companyId} currentUserId={currentUserId} />
+        <NotesList
+          entityType="companies"
+          entityId={companyId}
+          currentUserId={currentUserId}
+          aggregate
+        />
       ),
     },
     {