Add Vue integration guide and application creation wizard

[kavindadimuthu]

Purpose

This pull request introduces a new integration template for Vue applications within the project. It adds all the necessary configuration, metadata, and resource files to support Vue app onboarding, configuration, and quick-start guidance in the integrations module.

Key changes include:

Addition of Vue Application Integration Template:

• Added a new Maven module for Vue application integration by creating the vue-application directory with its own pom.xml, enabling build and packaging support for this template. [1] [2]
• Registered the new Vue application module in the integrations parent pom.xml to ensure it is included in the build process.

Resource and Metadata Configuration:

• Introduced info.json describing the Vue template, including its metadata (name, description, tags, image, etc.), and marking it as a new feature.
• Added metadata.json to define the UI forms, field behaviors, guides, and tab configuration for creating and editing Vue applications in the integration UI. This includes quick-start instructions and protocol-specific configuration.
• Provided a template.json file specifying the default payload for new Vue applications, including authentication sequence, OIDC protocol settings, claims, and advanced configurations.

Goals

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Approach

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User stories

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Release note

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Documentation

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Training

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Certification

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Marketing

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Automation tests

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• Integration tests

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Security checks

• Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines? yes/no
• Ran FindSecurityBugs plugin and verified report? yes/no
• Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets? yes/no

Samples

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Related PRs

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Migrations (if applicable)

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Test environment

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Learning

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[CLAassistant]

All committers have signed the CLA.

[brionmario]

@DilshanSenarath Can you please review this?