perf(api): add explicit Prisma selects on hot read paths

Replaces full model includes with field-scoped selects on the resource
list (listStaff) query. Avoids fetching large JSONB columns
(availability, valueScoreBreakdown) and unused scalar fields (aiSummary,
portfolioUrl, fte, resourceType, postalCode, etc.) when only
identity/rate fields are needed.

Adds RESOURCE_LIST_SELECT constant to packages/api/src/db/selects.ts
covering all fields actually consumed by ResourcesClient, FillOpenDemandModal,
EstimateWizard, EstimateWorkspaceDraftEditor, and ScenarioPlanner.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/api/src/db/selects.ts

@@ -1,3 +1,34 @@
 export const ROLE_BRIEF_SELECT = { id: true, name: true, color: true } as const;
 export const PROJECT_BRIEF_SELECT = { id: true, name: true, shortCode: true, status: true, endDate: true } as const;
 export const RESOURCE_BRIEF_SELECT = { id: true, displayName: true, eid: true, lcrCents: true, chapter: true } as const;
+
+/**
+ * Explicit select for the resource list endpoint (listStaff).
+ * Omits large JSONB columns that are unused in all list consumers:
+ * - availability (~several KB per row, only needed for scheduling calculations)
+ * - valueScoreBreakdown (JSON, only needed in detail/dashboard views)
+ * - aiSummary / aiSummaryUpdatedAt / skillMatrixUpdatedAt / portfolioUrl
+ * This keeps skills and dynamicFields because they are rendered in the resource table.
+ */
+export const RESOURCE_LIST_SELECT = {
+  id: true,
+  eid: true,
+  displayName: true,
+  email: true,
+  chapter: true,
+  lcrCents: true,
+  ucrCents: true,
+  currency: true,
+  chargeabilityTarget: true,
+  skills: true,
+  dynamicFields: true,
+  blueprintId: true,
+  isActive: true,
+  roleId: true,
+  federalState: true,
+  valueScore: true,
+  rolledOff: true,
+  departed: true,
+  createdAt: true,
+  updatedAt: true,
+} as const;