feat: 5-tier pricing, market ticker integration, and delivery stats

Major update spanning pricing, market data, and analytics:

- Pricing: Replace single-price service fees with 5-tier pricing for
  same-day, prime, and emergency deliveries across create/edit/finalize
- Market: Add Ticker_Price and CompanyPrice models with endpoints for
  live commodity prices (HO, CL, RB) and competitor price tracking
- Stats: Add daily/weekly/monthly gallons endpoints with multi-year
  comparison and YoY totals for the stats dashboard
- Delivery: Add map and history endpoints, fix finalize null-driver crash
- Schema: Change fill_location from INTEGER to VARCHAR(250), add
  pre_load normalization for customer updates, fix admin auth check

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

app/classes/auth.py

@@ -51,12 +51,15 @@ class Auth_User(UserMixin, db.Model):
         self.confirmed = confirmed
         self.active = active
 
+    @property
     def is_authenticated(self):
         return True
 
+    @property
     def is_active(self):
         return True
 
+    @property
     def is_anonymous(self):
         return False