DS1 follow-up: close the sb-token trust-bug class across all surfaces

The OAuth-only 'sb-token' localStorage key was read by profile, slip,
dashboard (recent-scans), settings, and tracker for their authenticated
fetches. Email/password users never had that key, so those fetches sent
no Authorization header and silently returned nothing.

- web/src/lib/authToken.js — currentAccessToken() reads the REAL Supabase
  session (sb-<ref>-auth-token, v2 top-level or v1 currentSession), legacy
  fallback. CommonJS so Jest can unit-test it (5 tests).
- Swept all 5 pages to the helper (scan already session-first from DS1).
- lib/api.ts (0 callers) + ParlayTray (unmounted) left as dead code.

236 suites / 2842 tests green, next build exit 0.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/src/app/dashboard/page.tsx

@@ -15,6 +15,7 @@ import { AccuracyBadge, Skeleton, SkeletonList } from '@/components/vyndr';
 import { emptyStateCopy } from '@/lib/emptyState';
 // Session 59 (work-order 2.3) — the real pipeline schedule for waiting states.
 import { nextRunLabelET } from '@/lib/pipelineSchedule';
+import { currentAccessToken } from '@/lib/authToken';
 
 type Sport = 'NBA' | 'MLB' | 'WNBA';
 
@@ -170,7 +171,7 @@ export default function DashboardPage() {
       .catch(() => setMostParlayed([]));
 
     if (user) {
-      const token = typeof window !== 'undefined' ? localStorage.getItem('sb-token') : null;
+      const token = currentAccessToken();
       fetch('/api/user/recent-scans', {
         headers: token ? { Authorization: `Bearer ${token}` } : {},
       })

web/src/app/profile/page.tsx

@@ -3,6 +3,7 @@
 import { useEffect, useState } from 'react';
 import { useRouter } from 'next/navigation';
 import { useAuth } from '@/contexts/AuthContext';
+import { currentAccessToken } from '@/lib/authToken';
 
 interface FullProfile {
   id: string;
@@ -29,7 +30,7 @@ export default function ProfilePage() {
 
   useEffect(() => {
     if (!user) return;
-    const token = typeof window !== 'undefined' ? localStorage.getItem('sb-token') : null;
+    const token = currentAccessToken();
     fetch('/api/user/profile', {
       headers: token ? { Authorization: `Bearer ${token}` } : {},
     })
@@ -42,7 +43,7 @@ export default function ProfilePage() {
     if (!confirm('Cancel your subscription at the end of the current period?')) return;
     setWorking(true);
     setError('');
-    const token = typeof window !== 'undefined' ? localStorage.getItem('sb-token') : null;
+    const token = currentAccessToken();
     const res = await fetch('/api/user/profile', {
       method: 'PUT',
       headers: {

web/src/app/settings/page.tsx

@@ -3,6 +3,7 @@
 import { useState, useEffect } from 'react';
 import { useRouter } from 'next/navigation';
 import { useAuth } from '@/contexts/AuthContext';
+import { currentAccessToken } from '@/lib/authToken';
 
 /**
  * /settings (Session 42 — Player Intelligence design).
@@ -173,7 +174,7 @@ export default function SettingsPage() {
     setDeleting(true);
     setDelError('');
     try {
-      const token = typeof window !== 'undefined' ? localStorage.getItem('sb-token') : null;
+      const token = currentAccessToken();
       const res = await fetch('/api/user/profile', {
         method: 'DELETE',
         headers: token ? { Authorization: `Bearer ${token}` } : {},

web/src/app/slip/page.tsx

@@ -17,6 +17,7 @@ import SectionHead from '@/components/vyndr/SectionHead';
 import VBtn from '@/components/vyndr/VBtn';
 import GradeBadge from '@/components/vyndr/GradeBadge';
 import { useParlay } from '@/contexts/ParlayContext';
+import { currentAccessToken } from '@/lib/authToken';
 
 type Sport = 'MLB' | 'NBA' | 'WNBA';
 
@@ -109,7 +110,7 @@ export default function SlipPage() {
     setGraded(false);
     setAdded(false);
     try {
-      const token = typeof window !== 'undefined' ? localStorage.getItem('sb-token') : null;
+      const token = currentAccessToken();
       const res = await fetch('/api/slips/parse', {
         method: 'POST',
         headers: {
@@ -185,7 +186,7 @@ export default function SlipPage() {
     if (!legs || grading) return;
     setGrading(true);
     setGrades(legs.map(() => ({ status: 'pending' })));
-    const token = typeof window !== 'undefined' ? localStorage.getItem('sb-token') : null;
+    const token = currentAccessToken();
     const results: LegGrade[] = [];
     for (const leg of legs) {
       if (!legReady(leg)) {

web/src/app/tracker/page.tsx

@@ -3,6 +3,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import { useRouter } from 'next/navigation';
 import { useAuth } from '@/contexts/AuthContext';
+import { currentAccessToken } from '@/lib/authToken';
 
 type Period = 'weekly' | 'monthly' | 'all_time';
 
@@ -28,7 +29,7 @@ interface Bet {
 const API_BASE = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:3000';
 
 function getAuthHeaders(): Record<string, string> {
-  const token = typeof window !== 'undefined' ? localStorage.getItem('sb-token') : null;
+  const token = currentAccessToken();
   return token
     ? { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json' }
     : { 'Content-Type': 'application/json' };