Align component_checks.component_id with legacy components.id on MySQL

[Copilot]

MySQL 8.0.16+ rejects the component_checks foreign key because foreignId() creates BIGINT UNSIGNED while the legacy components.id column is INT UNSIGNED. SQLite did not surface this because it does not enforce FK integer-type compatibility the same way.

• Migration fix

  • Replace foreignId('component_id') with unsignedInteger('component_id')
  • Keep the foreign key explicit so component_checks.component_id matches components.id

• Regression coverage

  • Add a focused migration test that compiles the schema with Laravel's MySQL grammar
  • Assert the generated DDL uses INT UNSIGNED for component_id, guarding against future reintroduction of foreignId()

• Result

  • php artisan migrate can create component_checks on modern MySQL versions without FK type mismatch errors

Schema::create('component_checks', function (Blueprint $table) {
    $table->id();
    $table->unsignedInteger('component_id');
    // ...

    $table->foreign('component_id')
        ->references('id')
        ->on('components')
        ->cascadeOnDelete();
});

[jbrooksuk]

@copilot fix the broken tests

[Copilot]

@copilot fix the broken tests

Fixed in 45f9e8d. The test had two constructor signature issues:

1. MySqlGrammar() requires a Connection in L13.x prefer-lowest
2. Blueprint($connection, 'table') is invalid - Blueprint takes ($table, ?Closure, $prefix)

Changed to proper signatures: new MySqlGrammar($connection) and new Blueprint('component_checks').