feat(interests): EOI/contract/reservation tabs + contact log + berth interest milestone + interest list overhaul

Major interest workflow expansion driven by the rapid-fire UX session.

EOI / Contract / Reservation tabs replace the generic Documents tab when
the deal is at the relevant stage — workspace pattern with active-doc
hero, signing progress, paper-signed upload, and history strip. Stage-
conditional visibility wired through interest-tabs.tsx so the tab set
shrinks/expands as the deal moves through the pipeline.

Contact log: per-interaction structured log (channel/direction/summary/
optional follow-up reminder). New `interest_contact_log` table + service
+ tab UI (timeline with channel-coded icons + compose dialog).
auto-creates a reminder when followUpAt is set.

Berth Interest milestone: first milestone in the OverviewTab's pipeline
strip, completes the moment any berth is linked via the junction. Drives
the "have we captured what they want?" sanity check for general_interest
leads before they move to EOI.

Stage-conditional milestones: past phases collapse into a one-liner
strip, current phase expands, future phases hide behind a "Show
upcoming" toggle. Inline stage picker now defers reason capture to an
override-confirm view (only required for illegal transitions, not the
default flow).

Notes blob → threaded: dropped `interests.notes` column entirely; the
threaded `interest_notes` table is the single source of truth. Latest-
note teaser on Overview links into the dedicated Notes tab. Polymorphic
notes service gains aggregated client view (unions client + interest +
yacht notes with source chips and group-by-source toggle).

Berth interest list overhaul:
  - Configurable columns via ColumnPicker (18 toggleable, 5 default-on)
  - Natural-sort SQL ORDER BY on mooring number (A1, A2, A10 not A10, A2)
  - Per-letter row tinting via colored left-border accent + dot in cell
  - Documents tab merged Files (single attachments section)

Topbar improvements:
  - Always-visible back arrow on detail pages (path depth > 2)
  - Breadcrumb-hint store + useBreadcrumbHint hook so detail pages can
    push their entity hierarchy (Clients › Mary Smith › Interest › B17)
  - Tighter spacing, softer separators, 160px crumb truncation

DataTable upgrades:
  - Page-size selector with All option (validator cap raised to 1000)
  - getRowClassName slot for per-row styling (used by berth tinting)
  - Fixed Radix SelectItem crash on empty-string values via __any__
    sentinel (was crashing every list page that opened a select filter)

Interest list:
  - Configurable columns picker
  - Stage cell clickable into detail
  - TagPicker + SavedViewsDropdown sized h-8 to match adjacent buttons
  - Save view moved into ColumnPicker menu; Views button hidden when
    no views are saved
  - Pipeline kanban board endpoint at /api/v1/interests/board with
    minimal projection, 5000-row cap + truncated banner, filter
    pass-through

Mobile chrome + sidebar collapse removed (always-expanded design choice).

User management lists super-admins (was inner-joined on user_port_roles
which excluded global super-admins).

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

src/components/clients/client-list.tsx

@@ -10,6 +10,7 @@ import { Button } from '@/components/ui/button';
 import { DataTable } from '@/components/shared/data-table';
 import { FilterBar } from '@/components/shared/filter-bar';
 import { SavedViewsDropdown } from '@/components/shared/saved-views-dropdown';
+import { SaveViewDialog } from '@/components/shared/save-view-dialog';
 import { PageHeader } from '@/components/shared/page-header';
 import { EmptyState } from '@/components/shared/empty-state';
 import { TableSkeleton } from '@/components/shared/loading-skeleton';
@@ -30,9 +31,16 @@ import {
 import { ClientForm } from '@/components/clients/client-form';
 import { clientFilterDefinitions } from '@/components/clients/client-filters';
 import { ClientCard } from '@/components/clients/client-card';
-import { getClientColumns, type ClientRow } from '@/components/clients/client-columns';
+import {
+  CLIENT_COLUMN_OPTIONS,
+  CLIENT_DEFAULT_HIDDEN,
+  getClientColumns,
+  type ClientRow,
+} from '@/components/clients/client-columns';
+import { ColumnPicker } from '@/components/shared/column-picker';
 import { usePaginatedQuery } from '@/hooks/use-paginated-query';
 import { useRealtimeInvalidation } from '@/hooks/use-realtime-invalidation';
+import { useTablePreferences } from '@/hooks/use-table-preferences';
 import { apiFetch } from '@/lib/api/client';
 
 export function ClientList() {
@@ -49,6 +57,7 @@ export function ClientList() {
   const [tagChoice, setTagChoice] = useState<string[]>([]);
   const [bulkDeleteIds, setBulkDeleteIds] = useState<string[]>([]);
   const [bulkArchiveIds, setBulkArchiveIds] = useState<string[]>([]);
+  const [saveViewOpen, setSaveViewOpen] = useState(false);
 
   const { can } = usePermissions();
   const canHardDelete = can('admin', 'permanently_delete_clients');
@@ -119,6 +128,13 @@ export function ClientList() {
     onArchive: (client) => setArchiveClient(client),
   });
 
+  // Per-user column visibility, persisted into user_profiles.preferences
+  // via /api/v1/me. Hidden IDs are the source of truth — `actions` and
+  // `select` columns aren't user-toggleable so they're never in the
+  // hidden set. New columns surface for existing users by default.
+  const { hidden, setHidden } = useTablePreferences('clients', CLIENT_DEFAULT_HIDDEN);
+  const columnVisibility = Object.fromEntries(hidden.map((id) => [id, false]));
+
   return (
     <div className="space-y-4">
       <PageHeader
@@ -144,20 +160,33 @@ export function ClientList() {
         />
         <SavedViewsDropdown
           entityType="clients"
-          currentFilters={filters}
-          currentSort={sort}
           onApplyView={(savedFilters, _savedSort) => {
             clearFilters();
             Object.entries(savedFilters).forEach(([key, val]) => setFilter(key, val));
           }}
         />
+        <ColumnPicker
+          columns={CLIENT_COLUMN_OPTIONS}
+          hidden={hidden}
+          onChange={setHidden}
+          onSaveView={() => setSaveViewOpen(true)}
+        />
       </div>
 
+      <SaveViewDialog
+        open={saveViewOpen}
+        onOpenChange={setSaveViewOpen}
+        entityType="clients"
+        currentFilters={filters}
+        currentSort={sort}
+      />
+
       {isLoading ? (
         <TableSkeleton />
       ) : (
         <DataTable
           columns={columns}
+          columnVisibility={columnVisibility}
           data={data}
           pagination={pagination}
           onPaginationChange={(p, ps) => {