Draw the connection usages for service classes

[LakshanWeerasinghe]

Purpose

$subject

Fixes wso2/product-ballerina-integrator#2396

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[Copilot]

Pull request overview

Adds support in the architecture model generator to attribute connection usage that occurs inside service classes back to the services/resources that instantiate/use those service classes (fixing wso2/product-ballerina-integrator#2396).

Changes:

• Track service-class definitions and collect their function models during syntax-tree analysis.
• Track instantiated/used classes from new expressions and incorporate service-class function dependencies when building the connection graph.
• Add a new test project + expected design-model output to validate connection propagation through a service class.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
architecture-model-generator/modules/architecture-model-generator-core/src/main/java/io/ballerina/designmodelgenerator/core/IntermediateModel.java	Extends the intermediate representation to include service-class models and class-usage tracking.
architecture-model-generator/modules/architecture-model-generator-core/src/main/java/io/ballerina/designmodelgenerator/core/CodeAnalyzer.java	Detects service class definitions, associates functions with service classes, and records classes instantiated via new.
architecture-model-generator/modules/architecture-model-generator-core/src/main/java/io/ballerina/designmodelgenerator/core/DesignModelGenerator.java	Incorporates service-class function dependencies while computing transitive connection usage.
architecture-model-generator/modules/architecture-model-generator-ls-extension/src/test/resources/get_design_model/source/project_9/main.bal	Adds a sample WebSocket service that returns a service-class instance which uses an HTTP client.
architecture-model-generator/modules/architecture-model-generator-ls-extension/src/test/resources/get_design_model/source/project_9/Ballerina.toml	Adds package metadata for the new test project.
architecture-model-generator/modules/architecture-model-generator-ls-extension/src/test/resources/get_design_model/config/connections_for_service_classes.json	Adds the expected design-model output for the new service-class connection propagation scenario.

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[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

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[NipunaRanasinghe]

LGTM