### Problem/Motivation The module requires updates for compatibility with Drupal 10.3 and Drupal 11, including modern constructor dependency injection, PHP backed enums for deprecated constants, dedicated submission and toggle routing, rate limiting to protect public endpoints from automated abuse, and schema validation for actions and vocabulary configuration. ### Proposed resolution - Update `core_version_requirement` to `^10.3 || ^11`. - Replace deprecated procedural constants with `RequirementSeverity` and `FileExists` enums. - Implement constructor dependency injection across `SettingsForm` and `WebsiteFeedbackController`. - Introduce a dedicated frontend modal submission route (`website_feedback.frontend_add`) and a CSRF-protected status toggle route (`website_feedback.toggle_status`) using entity update access checks (`_entity_access: 'website_feedback.update'`). - Add IP-based flood control settings (`flood_limit`, `flood_window`) and configuration schema to protect feedback submission endpoints from automated abuse. - Provide `hook_update_n()` to check legacy `tags_vocabulary` settings against active vocabulary machine names, resetting invalid integer values to NULL. - Define a dedicated `website_feedback_theme` library in `website_feedback.libraries.yml` so administrative and modal dialog presentation assets are decoupled from the base floating trigger button. - Query `library.discovery` dynamically in `website_feedback_get_html2canvas_path()` to honor `hook_library_info_alter()` overrides. - Provide module-level `phpcs.xml.dist` (Drupal and DrupalPractice standards) and `phpstan.neon` with Core's standard `new static()` ignore rule. - Cast entity owner ID to `(int)` and assert `UserInterface` on `getOwner()` to satisfy PHPStan level 6 static analysis. ### Remaining tasks - Create and merge the commit. - Test on Drupal 10.3 and Drupal 11. ### User interface changes - Adds flood control configuration fields to the module settings form (`/admin/config/development/website-feedback`). ### API changes - New routes: `website_feedback.frontend_add` and `website_feedback.toggle_status`. - New helper: `website_feedback_get_html2canvas_path()`. ### Data model changes - Configuration schema addition: `flood_limit` and `flood_window` keys in `website_feedback.settings`. - Configuration schema addition: `action_configuration_default` for custom resolve and unresolve actions.