Sync main with 1.2.x

[NipunaRanasinghe]

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[Copilot]

Pull Request Overview

This PR syncs the main branch with the 1.2.x branch, introducing several enhancements and improvements to the Ballerina language server and flow model generator.

• Version bump from 1.1.2 to 1.2.0
• Enhanced data mapping functionality with transformation function support
• Improved AI component management with dynamic loading instead of static JSON files
• Better handling of nil types and union type representations

Reviewed Changes

Copilot reviewed 115 out of 116 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
gradle.properties	Updates version from 1.1.2 to 1.2.0
service-model-generator/	Adds parameter handling and HTTP parameter type classification improvements
flow-model-generator/	Introduces transformation function test support and removes static AI component JSON files
misc/diagram-util/	Updates nil type representation from "nil" to "()"
langserver-core/	Changes toCamelCase method visibility from private to public

Comments suppressed due to low confidence (3)

service-model-generator/modules/service-model-generator-ls-extension/src/test/java/io/ballerina/servicemodelgenerator/extension/AddServiceTest.java:1

• The parameter is not being added to the parameterModels list. This means enabled parameters won't appear in the final parameter list, causing them to be lost.

/*

service-model-generator/modules/service-model-generator-ls-extension/src/test/java/io/ballerina/servicemodelgenerator/extension/AddServiceTest.java:1

• The parameter is not being added to the parameterModels list. This means enabled parameters won't appear in the final parameter list, causing them to be lost.

/*

service-model-generator/modules/service-model-generator-ls-extension/src/test/java/io/ballerina/servicemodelgenerator/extension/AddServiceTest.java:1

• The parameter is not being added to the parameterModels list. This means enabled parameters won't appear in the final parameter list, causing them to be lost.

/*

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