Staging release: Rust widget renderer

[rileyseaburg]

This pull request introduces several improvements to the Rust widget renderer integration, environment configuration, and build/deployment processes. The main goals are to ensure robust handling of the Rust extension across environments, improve boolean serialization for widget rendering, and allow more flexible configuration of asset and session domains. Additionally, it updates CI/CD workflows and removes an obsolete test file.

Widget Renderer Integration Improvements

• Updated the Rust extension loader to require lib/widget_renderer instead of the previous path, ensuring the correct file is loaded after build and runtime compilation. (config/initializers/widget_renderer.rb) [1] [2]
• Improved the Ruby wrapper for the Rust extension to handle stale or incorrect WidgetRenderer module definitions, ensuring Rutie initializes the class properly. (ext/widget_renderer/lib/widget_renderer.rb) [1] [2]
• Enhanced the Rust-side deserialization to treat missing or null booleans as false, preventing errors from legacy or incomplete Rails data. (ext/widget_renderer/src/form_data.rs) [1] [2]
• Updated the Rails model to consistently serialize booleans and question text for the Rust widget renderer, and to skip Rust rendering in test environments. (app/models/form.rb) [1] [2]

Build and Deployment Process Updates

• Improved the build artifact handling in the GitHub workflow and CircleCI config, ensuring the correct shared library is found and copied regardless of target or environment. (.github/workflows/build-widget.yml, .circleci/config.yml, .cfignore, .profile.d/build_widget_renderer.sh, ext/widget_renderer/extconf.rb) [1] [2] [3] [4] [5] [6] [7]

Environment and Configuration Flexibility

• Added support for overriding asset host and session cookie domain via environment variables, improving deployment flexibility across staging and production. (config/environments/staging.rb, config/initializers/session_store.rb, touchpoints-staging.yml) [1] [2] [3] [4]

Testing and CI/CD Adjustments

• Removed an obsolete controller export spec to clean up the test suite. (spec/controllers/admin/cx_collections_controller_export_spec.rb)
• Improved feature spec reliability by using more robust selectors and waits. (spec/features/admin/forms/form_permissions_spec.rb)

These changes collectively improve the reliability, maintainability, and deployment flexibility of the widget renderer integration and overall application.

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