Add Routing module: EvRoute, pricing, time slots, read API, caching (T3.1-T3.7)

Implements Phase 3 in full: EvRoute model with company/destination relations
and a from/to-must-differ guard; the ev_route_time_slots pivot; RoutePricing
with a per-route is_blocked flag (every route auto-manages exactly one price
row per vehicle option via a fixed-row Filament repeater on both create and
edit); PricingService::quote() with a shared VehicleOption enum; RoutingPlugin
with the EvRouteResource admin UI (activation gated on non-blocked options
being priced); the /api/v1/routes read API (list/show/pricing/time-slots,
AI-agent-friendly nested shape); and Redis-tag-based response caching
invalidated via EvRoute/RoutePricing observers.

app/Providers/Filament/AdminPanelProvider.php

@@ -20,6 +20,7 @@ use Illuminate\Routing\Middleware\SubstituteBindings;
 use Illuminate\Session\Middleware\StartSession;
 use Illuminate\View\Middleware\ShareErrorsFromSession;
 use Modules\Catalog\CatalogPlugin;
+use Modules\Routing\RoutingPlugin;
 
 class AdminPanelProvider extends PanelProvider
 {
@@ -41,6 +42,7 @@ class AdminPanelProvider extends PanelProvider
             ])
             ->plugins([
                 CatalogPlugin::make(),
+                RoutingPlugin::make(),
             ])
             ->discoverResources(in: app_path('Filament/Resources'), for: 'App\Filament\Resources')
             ->discoverPages(in: app_path('Filament/Pages'), for: 'App\Filament\Pages')