Allow multiple supplier/farmer entries per ingredient in batch origins

Each batch origin row now shows a searchable Rohstoff Select so the same
ingredient can appear in multiple rows with different suppliers or farmers.
Pre-fill from recipe still works (one row per ingredient); user clicks
'Eintrag hinzufügen' to add a second entry for the same ingredient.

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

app/Filament/User/Resources/BatchResource.php

@@ -132,20 +132,12 @@ class BatchResource extends Resource
                 Forms\Components\Repeater::make('origins')
                     ->label('')
                     ->relationship()
-                    ->afterStateHydrated(function ($component, $record) {
-                        // Pre-fill on create only when no origins exist
-                        if ($record?->id) {
-                            return;
-                        }
-                        // State is set reactively via recipe_id afterStateUpdated
-                    })
                     ->schema([
-                        Forms\Components\Hidden::make('spice_id'),
-                        Forms\Components\Placeholder::make('spice_name')
+                        Forms\Components\Select::make('spice_id')
                             ->label('Rohstoff')
-                            ->content(fn (Get $get): string =>
-                                Spice::find($get('spice_id'))?->name ?? '—'
-                            ),
+                            ->options(Spice::orderBy('name')->pluck('name', 'id'))
+                            ->searchable()
+                            ->required(),
 
                         Forms\Components\Select::make('supplier_id')
                             ->label('Lieferant')
@@ -168,7 +160,7 @@ class BatchResource extends Resource
                             ->columnSpanFull(),
                     ])
                     ->columns(2)
-                    ->addActionLabel('Rohstoff hinzufügen')
+                    ->addActionLabel('Eintrag hinzufügen')
                     ->reorderable(false),
             ]),
         ]);

app/Filament/User/Resources/ProductResource/RelationManagers/BatchesRelationManager.php

@@ -117,12 +117,11 @@ class BatchesRelationManager extends RelationManager
                     ])->toArray());
                 })
                 ->schema([
-                    Forms\Components\Hidden::make('spice_id'),
-                    Forms\Components\Placeholder::make('spice_name')
+                    Forms\Components\Select::make('spice_id')
                         ->label('Rohstoff')
-                        ->content(fn (Get $get): string =>
-                            Spice::find($get('spice_id'))?->name ?? '—'
-                        ),
+                        ->options(Spice::orderBy('name')->pluck('name', 'id'))
+                        ->searchable()
+                        ->required(),
 
                     Forms\Components\Select::make('supplier_id')
                         ->label('Lieferant')
@@ -145,7 +144,7 @@ class BatchesRelationManager extends RelationManager
                         ->columnSpanFull(),
                 ])
                 ->columns(2)
-                ->addActionLabel('Rohstoff hinzufügen')
+                ->addActionLabel('Eintrag hinzufügen')
                 ->columnSpanFull(),
         ]);
     }