docs: add aggregated Javadoc generation via site-javadoc profile

[kabir]

Add a site-javadoc Maven profile that generates unified cross-module
Javadoc using maven-javadoc-plugin's aggregate goal. Cross-module @see
and {@link} references resolve as navigable HTML links.

• Add site-javadoc profile to parent POM with aggregate goal
• Move Javadoc menu entry from global menu to per-version menu in dev.yml
• Add placeholder docs/public/dev/apidocs/index.html for unreleased versions
• Update RELEASE.md with Javadoc generation steps for major/minor releases
• Add Javadoc aggregation verification step to CI release profile workflow
• add aggregated Javadoc for 1.0.0.Final and 1.1.0.Final

[gemini-code-assist]

Code Review

This pull request introduces significant updates to the documentation, including new guides for Server setup, Client usage, Configuration, and Backward Compatibility. It also adds new extras modules (HTTP Clients, Storage, Replicated Queue Manager, OpenTelemetry) and updates the BOM structure. I have identified a few issues in the documentation examples: the TaskAuthorizationProvider implementation uses an incorrect map method (containsKey is needed instead of contains), and there is an inconsistency in the Task API usage (getStatus() and getId() should be used consistently).

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