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docs: add multi-agent reference architecture - #1030

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malladinagarjuna2 wants to merge 2 commits into
a2aproject:mainfrom
malladinagarjuna2:docs-multi-agent-scaling
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docs: add multi-agent reference architecture#1030
malladinagarjuna2 wants to merge 2 commits into
a2aproject:mainfrom
malladinagarjuna2:docs-multi-agent-scaling

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Overview

This PR adds a reference architecture documentation page detailing how to scale A2A Server Agents by hosting multiple distinct agents within a single Quarkus application.

Fixes #898

The Problem

Deploying a single agent per Quarkus app (1:1 mapping to kubernetes pods) incurs significant operational overhead and resource consumption when the number of agents grows into the hundreds. Users needed official guidance and a reference architecture for deploying multiple AgentCards and JSON-RPC handlers from a single application platform.

The Solution

Added a dedicated Multi-Agent Scaling page to the documentation site. The guide explains how to bypass the default @ApplicationScoped singletons and manually register Vert.x routing paths for individual agents (e.g., /{agentId}/.well-known/agent-card.json), allowing a single app to dynamically host an unlimited number of agents with minimal overhead.

This provides a reference architecture for deploying multiple agents within a single Quarkus application.

Fixes a2aproject#898
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How to scale a A2A production deployment to 100 A2A Server Agents each exposing a different AgentCard?

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