refactor(airport): delete AirportRepository

- Frontend/AirportController: drop airportRepo, use
  Airport::with('files')->find($id) ($id was already uppercased
  earlier in the method)
- Frontend/PirepController: drop airportRepo from constructor
  (only reference was a commented-out selectBoxList call). Phase
  2 precedent (Aircraft was the same case).
- Filament/Actions/ExportAction: AIRPORT case uses Airport::all()
- Delete app/Repositories/AirportRepository.php (dead selectBoxList
  goes with it)
- phpstan.neon: suppress larastan.relationExistence for
  FilesTrait::files() across Aircraft/Airline/Airport/Subfleet.
  The morphMany is trait-defined and works at runtime, but
  larastan can't statically resolve trait-declared polymorphic
  relations. First direct Eloquent with('files') call lands in
  this commit, hence the new suppression.

Final commit of Phase 3. AirportRepository is gone; 9 repositories
remain (was 10 at branch start). First Query class
(AirportSearchQuery) and search Form Request (SearchAirportsRequest)
are now in production, ready to be reused by Phases 4/6/7.

app/Filament/Actions/ExportAction.php

@@ -3,10 +3,10 @@
 namespace App\Filament\Actions;
 
 use App\Models\Aircraft;
+use App\Models\Airport;
 use App\Models\Enums\ImportExportType;
 use App\Models\Fare;
 use App\Models\Subfleet;
-use App\Repositories\AirportRepository;
 use App\Repositories\ExpenseRepository;
 use App\Repositories\FlightRepository;
 use App\Services\ExportService;
@@ -48,7 +48,7 @@ class ExportAction extends Action
                     $path = $exportSvc->exportAircraft($data);
                     break;
                 case ImportExportType::AIRPORT:
-                    $data = app(AirportRepository::class)->all();
+                    $data = Airport::all();
                     $path = $exportSvc->exportAirports($data);
                     break;
                 case ImportExportType::EXPENSES:

app/Http/Controllers/Frontend/AirportController.php

@@ -3,7 +3,7 @@
 namespace App\Http\Controllers\Frontend;
 
 use App\Contracts\Controller;
-use App\Repositories\AirportRepository;
+use App\Models\Airport;
 use App\Repositories\FlightRepository;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
@@ -13,7 +13,6 @@ use Laracasts\Flash\Flash;
 class AirportController extends Controller
 {
     public function __construct(
-        private readonly AirportRepository $airportRepo,
         private readonly FlightRepository $flightRepo
     ) {}
 
@@ -36,7 +35,7 @@ class AirportController extends Controller
             },
         ];
 
-        $airport = $this->airportRepo->with('files')->where('id', $id)->first();
+        $airport = Airport::with('files')->find($id);
         if (!$airport) {
             Flash::error('Airport not found!');
 

app/Http/Controllers/Frontend/PirepController.php

@@ -17,7 +17,6 @@ use App\Models\PirepField;
 use App\Models\SimBrief;
 use App\Models\User;
 use App\Repositories\AirlineRepository;
-use App\Repositories\AirportRepository;
 use App\Repositories\Criteria\WhereCriteria;
 use App\Repositories\FlightRepository;
 use App\Repositories\PirepRepository;
@@ -44,7 +43,6 @@ class PirepController extends Controller
 {
     public function __construct(
         private readonly AirlineRepository $airlineRepo,
-        private readonly AirportRepository $airportRepo,
         private readonly FareService $fareSvc,
         private readonly FlightRepository $flightRepo,
         private readonly GeoService $geoSvc,
@@ -289,7 +287,7 @@ class PirepController extends Controller
             'read_only'     => false,
             'airline_list'  => $this->airlineRepo->selectBoxList(true),
             'aircraft_list' => $aircraft_list,
-            'airport_list'  => [], // $this->airportRepo->selectBoxList(true),
+            'airport_list'  => [],
             'pirep_fields'  => PirepField::whereIn('pirep_source', [$pirep_source, PirepFieldSource::BOTH])->get(),
             'field_values'  => [],
             'fare_values'   => $fare_values,

app/Repositories/AirportRepository.php

@@ -1,57 +0,0 @@
-<?php
-
-namespace App\Repositories;
-
-use App\Contracts\Repository;
-use App\Models\Airport;
-use Prettus\Repository\Contracts\CacheableInterface;
-use Prettus\Repository\Traits\CacheableRepository;
-
-class AirportRepository extends Repository implements CacheableInterface
-{
-    use CacheableRepository;
-
-    protected $fieldSearchable = [
-        'iata' => 'like',
-        'icao' => 'like',
-        'name' => 'like',
-    ];
-
-    public function model()
-    {
-        return Airport::class;
-    }
-
-    /**
-     * Return the list of airports formatted for a select box
-     *
-     * @param bool $add_blank
-     * @param bool $only_hubs
-     */
-    public function selectBoxList($add_blank = false, $only_hubs = false): array
-    {
-        $retval = [];
-        $where = [];
-
-        if ($only_hubs) {
-            $where['hub'] = 1;
-        }
-
-        $items = $this->orderBy('icao', 'asc')->findWhere($where);
-
-        if ($add_blank) {
-            $retval[''] = '';
-        }
-
-        foreach ($items as $i) {
-            $s = $i->icao.' - '.$i->name;
-            if (!$only_hubs && $i->hub) {
-                $s .= ' (hub)';
-            }
-
-            $retval[$i->icao] = $s;
-        }
-
-        return $retval;
-    }
-}

phpstan.neon

@@ -17,6 +17,12 @@ parameters:
 
         # Eloquent Builder methods are not documented on repositories
         - '#Call to an undefined method App\\Repositories\\[a-zA-Z]+Repository::[a-zA-Z]+\(\)#'
+
+        # FilesTrait::files() defines a morphMany via traits — larastan's relationExistence
+        # rule can't statically resolve trait-defined polymorphic relations even though they
+        # work at runtime. Models using FilesTrait: Aircraft, Airline, Airport, Subfleet.
+        - identifier: larastan.relationExistence
+          message: '#Relation ''files'' is not found in App\\Models\\(Aircraft|Airline|Airport|Subfleet) model\.#'
 #        - '#PHPDoc tag @var#'
 #
 #    excludePaths: