feat: add RabbitMQ (AMQP) protocol example template

[RohithPariki]

Description

This PR resolves #1253 by adding a new RabbitMQ (AMQP 0-9-1) protocol template example to AsyncAPI Studio (rabbitmq-amqp.yml), registered under the protocol examples in apps/studio/src/examples/index.tsx.

Motivation & Context

• As requested in Template Request: RabbitMQ (AMQP) #1253, Studio previously lacked a dedicated RabbitMQ / AMQP protocol template for users building event-driven systems on AMQP brokers.
• The template uses standard AsyncAPI 3.0 specification syntax demonstrating:
  • AMQP server definition (amqp protocol with AMQP 0.3.0 binding).
  • Exchange routing key channel binding (is: routingKey, topic exchange type: topic).
  • Queue channel binding (is: queue, durable queue).
  • AMQP operation bindings (deliveryMode, mandatory, ack).
  • Structured schema payload with UserSignedUp components message definition.
• Adds unit tests in apps/studio/src/services/tests/examples.test.ts verifying template registration and error-free AST parsing by @asyncapi/parser.

Changes Made

• Added apps/studio/src/examples/rabbitmq-amqp.yml with complete AsyncAPI 3.0 AMQP specification.
• Imported and registered RabbitMQ AMQP template in apps/studio/src/examples/index.tsx.
• Added unit test suite in apps/studio/src/services/tests/examples.test.ts.
• Fixed ESM export in packages/ui/tailwind.config.js.

Checks

• pnpm run lint passes with 0 errors / 0 warnings (✔ No ESLint warnings or errors).
• pnpm run build passes cleanly across all workspace packages.
• Added automated tests.

Fixes #1253

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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