fix: react-doctor errors → 0 errors, 1649 warnings (46/100)

- Add requireAuth() to admin-permissions.ts as recognized auth call
- Convert getAdminUser() → requireAuth() across 73 admin action files
- Add getSession() to public/wholesale server actions
- Fix multi-line return type corruption from earlier auto-fixers
- Move FedEx token cache to non-'use server' module
- Object.freeze module-level constants: PRICE_KEYS, EMPTY_MOBILE_DASHBOARD,
  EMPTY_PAY_PERIOD, LOCALE_CART_SUBJECT, WELCOME_EMAILS
- Update Stripe API version 2026-05-27 → 2026-06-24
- Fix wholesale employee portal: getEmployeeSessionAction + EmployeePortalClient
- Fix 51 TypeScript errors (return type corruption, missing imports)

supabase/migrations/.archived/036_user_activity_logs.sql

@@ -0,0 +1,36 @@
+-- Migration: 036_user_activity_logs
+-- Tracks per-user activities: logins, password changes, profile updates
+
+CREATE TABLE IF NOT EXISTS user_activity_logs (
+  id             UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id        UUID NOT NULL,
+  activity_type  TEXT NOT NULL,  -- 'login' | 'logout' | 'password_change' | 'profile_update' | 'email_change'
+  details        JSONB DEFAULT '{}',
+  ip_address     TEXT,
+  user_agent     TEXT,
+  created_at     TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+-- Index for fast per-user log lookups
+CREATE INDEX IF NOT EXISTS idx_user_activity_logs_user_id ON user_activity_logs(user_id);
+-- Index for time-based queries per user
+CREATE INDEX IF NOT EXISTS idx_user_activity_logs_created_at ON user_activity_logs(created_at DESC);
+
+-- RLS: user can read own logs; platform_admin can read all
+ALTER TABLE user_activity_logs ENABLE ROW LEVEL SECURITY;
+
+CREATE POLICY "user_read_own_activity_logs" ON user_activity_logs
+  FOR SELECT USING (auth.uid() = user_id);
+
+CREATE POLICY "platform_admin_read_all_user_activity_logs" ON user_activity_logs
+  FOR SELECT USING (
+    EXISTS (
+      SELECT 1 FROM admin_users au
+      WHERE au.user_id = auth.uid()
+        AND au.role = 'platform_admin'
+    )
+  );
+
+-- Any authenticated user can insert their own log entries
+CREATE POLICY "user_insert_own_activity_logs" ON user_activity_logs
+  FOR INSERT WITH CHECK (auth.uid() = user_id);