Add table-entity generics support

[dereuromark]

Summary

• Enable tableEntityQuery and codeCompletionPath config options for IdeHelper
• Add typed find() method annotations to RolesTable and UsersTable for improved IDE support
• Update CakePHP to use the copilot/table-entity-generics-clean branch for testing generics

What now works

With these changes, the IDE can now properly infer entity types through the ORM chain:

$entityQuery = $users->find()
    ->where(['active' => true])
    ->matching('Roles')
    ->contain('Roles');
// IDE infers: SelectQuery<User>

$firstUser = $entityQuery->first();
// IDE infers: User|null

$allUsers = $entityQuery->all();
// IDE infers: ResultSetInterface<array-key, User>

$userList = $entityQuery->toArray();
// IDE infers: array<User>

$authQuery = $users->find('auth', ['login' => 'mark']);
// IDE infers: SelectQuery<User>

$hydrationOffQuery = $users->find()->disableHydration();
// IDE infers: SelectQuery<array<string, mixed>>

$firstRow = $hydrationOffQuery->first();
// IDE infers: array<string, mixed>|null