feat(expenses+interests): trip/event grouping (lightweight)

Per the trips/events design discussion: instead of building a full
events domain (table + CRUD UI + calendar) for the 6–12 yacht shows
a year, ship the cheap version that covers the actual asks.

Expenses — `tripLabel` free-text:
- New `expenses.trip_label` text column (migration 0039) + index for
  filter / autocomplete lookup.
- Validator: createExpenseShape + listExpensesSchema +
  exportExpensePdfSchema.filter all accept tripLabel.
- Service: createExpense + updateExpense persist; listExpenses filters;
  new `listTripLabels(portId, search?)` returns distinct values
  ordered by most-recent expenseDate so the autocomplete surfaces
  recently-used labels first.
- New `GET /api/v1/expenses/trip-labels` endpoint (gated by
  expenses.view) backs the autocomplete.
- Form dialog: native `<datalist>` powered by the autocomplete query
  so reps don't end up with "Palm Beach 2026" / "palm-beach 2026"
  fragmented across two PDF sections.
- Expense list: new "Trip" column (badge) + free-text filter.
- Detail page: trip label rendered alongside Category / Payer.
- PDF export: GroupBy gains 'trip'; filter.tripLabel narrows the
  export. Untagged rows fall under "(no trip)".
- Trim/normalize on write so " Palm Beach 2026 " === "Palm Beach 2026".

Interests — event tagging via existing tag system:
- Reps can tag interests with an event tag (e.g. "Palm Beach 2026")
  via the existing InlineTagEditor on the detail page; tags are
  port-scoped and reusable.
- Interest list now has a TagPicker filter rendered next to the
  FilterBar so reps can sort prospects by event attended ("show me
  every lead from Palm Beach"). Hidden 'relation'-typed
  FilterDefinition for tagIds wires URL round-trip + saved-views
  capture without rendering inside the FilterBar.
- FilterBar deserializer now handles `relation` types as comma-joined
  arrays on URL load.

Why a free-text trip label and not a trips table:
- 6–12 events/year doesn't justify a domain. The CRUD UI cost would
  be most of the engineering, and reps already have the events on
  their personal calendars.
- If usage proves demand for per-event ROI dashboards or richer
  attribution, promote to a real `trips` table later. Migration
  path: trip_label → tripId is a backfill+swap.

Test status: 1168/1168 vitest. tsc clean. Migration 0039 applied
in dev (also caught + fixed an unrelated audit-v3 follow-up: 0037
had `idx_br_interest` colliding with the existing
`berth_recommendations.idx_br_interest`; renamed to
`idx_brr_interest` / `idx_brr_contract_file`).

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

src/components/interests/interest-filters.tsx

@@ -58,4 +58,12 @@ export const interestFilterDefinitions: FilterDefinition[] = [
     label: 'Include Archived',
     type: 'boolean',
   },
+  // Rendered OUTSIDE the FilterBar by `<TagPicker>` in interest-list, but
+  // declared here so URL round-trip + saved-views capture the value.
+  // `relation` skips the FilterBar's render switch.
+  {
+    key: 'tagIds',
+    label: 'Tags',
+    type: 'relation',
+  },
 ];

src/components/interests/interest-list.tsx

@@ -19,6 +19,7 @@ import { PipelineBoard } from '@/components/interests/pipeline-board';
 import { interestFilterDefinitions } from '@/components/interests/interest-filters';
 import { getInterestColumns, type InterestRow } from '@/components/interests/interest-columns';
 import { InterestCard } from '@/components/interests/interest-card';
+import { TagPicker } from '@/components/shared/tag-picker';
 import { usePaginatedQuery } from '@/hooks/use-paginated-query';
 import { useRealtimeInvalidation } from '@/hooks/use-realtime-invalidation';
 import { apiFetch } from '@/lib/api/client';
@@ -123,13 +124,24 @@ export function InterestList() {
         }
       />
 
-      <div className="flex items-center gap-2">
+      <div className="flex flex-wrap items-center gap-2">
         <FilterBar
           filters={interestFilterDefinitions}
           values={filters}
           onChange={setFilter}
           onClear={clearFilters}
         />
+        {/* Tag picker — primary use case is filtering by event/yacht-show
+         *  ("Palm Beach 2026") that the rep tagged interests with at the
+         *  show. The validator already accepts `tagIds` on listInterests;
+         *  this surfaces the input in the filter UI. */}
+        <div className="min-w-[200px]">
+          <TagPicker
+            selectedIds={Array.isArray(filters.tagIds) ? (filters.tagIds as string[]) : []}
+            onChange={(ids) => setFilter('tagIds', ids)}
+            placeholder="Filter by tag / event…"
+          />
+        </div>
         <SavedViewsDropdown
           entityType="interests"
           currentFilters={filters}