Bump the major-updates group with 5 updates

[dependabot]

This pull request upgrades the project to the latest major versions of Spring Boot (4.x), Vaadin (25.x), and Gradle (9.x), along with related dependencies and build tools. It also updates the frontend dependencies to align with Vaadin 25 and React 19, and refactors several configurations to match the new library versions and best practices.

Build and Dependency Upgrades:

• Spring Boot and Vaadin major upgrades: Upgraded org.springframework.boot from 3.5.7 to 4.0.1 and com.vaadin from 24.9.6 to 25.0.2 in simdesk-web/build.gradle. Also updated the Vaadin BOM and all related dependencies. [1] [2] [3] [4]
• Gradle upgrade: Updated Gradle wrapper from 8.13 to 9.3.0 and adjusted wrapper scripts (gradlew, gradlew.bat) to use the new -jar invocation style. [1] [2] [3] [4] [5] [6]

Frontend and JavaScript Dependency Updates:

• Vaadin 25 and React 19 migration: Updated all Vaadin frontend packages to 25.0.1 and React to 19.x in package.json. Removed legacy Vaadin and Polymer dependencies, updated devDependencies, and synchronized overrides. [1] [2]
• Removed obsolete theme and style files: Deleted unused or incompatible theme files (theme.json, tabs.css) to align with new Vaadin theming. [1] [2]

Configuration and Codebase Refactoring:

• Jackson and serialization configuration: Refactored JacksonConfiguration to use the new JsonMapperBuilderCustomizer API, added support for primitive boolean deserialization, and updated to use tools.jackson APIs.
• Flyway and DataSource configuration: Updated imports to match new Spring Boot 4 package structure for Flyway and DataSource configuration.
• RestClient configuration: Switched to the new configureMessageConverters API for customizing converters in Spring Boot 4.
• Security configuration: Updated imports to remove deprecated or obsolete Vaadin security configuration classes and added new Spring Boot 4 web security imports. [1] [2]

[Copilot]

Pull request overview

This pull request updates major dependencies including Spring Boot (3.5.7→4.0.1), Vaadin (24.9.6→25.0.2), MyBatis (3.0.5→4.0.1), and SpringDoc (2.8.13→3.0.0). The changes include configuration updates, Vaadin API migration for deprecated methods, and addition of new static CSS/font resources.

Changes:

• Major framework upgrades: Spring Boot 4.0.1, Vaadin 25.0.2, MyBatis 4.0.1, SpringDoc 3.0.0
• Jackson configuration migrated from YAML to Java code (JacksonConfiguration class)
• Vaadin API updated: replaced deprecated args.length() with args.isEmpty() and args.getString(0) with args.get(0).asString()
• Added explicit enabled: true flags for SpringDoc endpoints (breaking change in SpringDoc 3.0)
• Added new CSS files, fonts, and static resources for the UI

Reviewed changes

Copilot reviewed 34 out of 65 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
application.yaml	Removed Jackson and CORS configuration blocks, added SpringDoc enabled flags
LeaderboardLineRenderer.java	Updated Vaadin API calls to use new methods (args.isEmpty(), args.get(0).asString())
styles.css	Updated font path and removed tabs.css import
JacksonConfiguration.java	Maintains Jackson configuration programmatically
Various CSS/font files	New static resources for UI styling and fonts

Comments suppressed due to low confidence (1)

simdesk-web/src/main/resources/META-INF/resources/css/styles.css:22

• The font path has been changed from "fonts/Roboto-Regular.ttf" to "../fonts/Roboto-Regular.ttf". Please verify that this path change is correct and that the font file is accessible at the new location. The relative path now points to a parent directory, which may cause the font to fail loading if the directory structure doesn't match expectations.

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