Fix lint errors (unused import, eqeqeq)

- Drop now-unused `inArray` import from participant-expected-value.ts
  (only the removed clearSourceOddsForParticipants used it).
- Use strict null/undefined check instead of `== null` in the test helper.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BHnoQ7myY3PzNdTnd7iGNE

app/models/__tests__/futures-odds-simulator.test.ts

@@ -36,7 +36,7 @@ beforeEach(() => {
 // Recursively flatten a Drizzle `sql` template into its static text so we can
 // assert how a conflict-update column is built (e.g. wrapped in COALESCE).
 function sqlToText(value: unknown): string {
-  if (value == null) return "";
+  if (value === null || value === undefined) return "";
   const chunks = (value as { queryChunks?: unknown[] }).queryChunks;
   if (Array.isArray(chunks)) return chunks.map(sqlToText).join("");
   const stringValue = (value as { value?: unknown }).value;

app/models/participant-expected-value.ts

@@ -7,7 +7,7 @@
 
 import { database } from "~/database/context";
 import { seasonParticipantExpectedValues, seasonParticipants } from "~/database/schema";
-import { eq, and, count, inArray, sql } from "drizzle-orm";
+import { eq, and, count, sql } from "drizzle-orm";
 import type { ProbabilityDistribution, ScoringRules } from "~/services/ev-calculator";
 import { calculateEV, normalizeProbabilities, calculateReplacementLevel, calculateVORP } from "~/services/ev-calculator";
 import { batchUpsertParticipantSimulatorInputs } from "~/models/simulator";