feat!: Update codebase to use A2A 1.0.0 data model

[bartek-gralewicz]

Description

Update the codebase to use proto types generated for 1.0.0 spec version.

List of changes

• Removed old type files: a2a_services.ts and a2a_types.ts.
• Update the codebase to use new types:
  • Message.content -> Message.parts,
  • TaskStatus.update -> TaskStatus.message
  • SendMessageConfiguration.blocking -> SendMessageConfiguration.returnImmediately (reversed behavior),
  • The AgentCard Structure updates: supportedInterfaces instead of url, preferredTransport, and additionalInterfaces, securityRequirements instead of security.
• setTaskPushNotificationConfig -> createTaskPushNotificationConfig (+ arguments update).
• listTasks method is not implemented yet. If used, it will throw NotImplemented error. There is a TODO next to it to mark the place in code.

Fixes (partially) #179 #322 🦕

[github-actions]

🧪 Code Coverage

⬇️ Download Full Report

	Base	PR	Delta
src/client/factory.ts	95.55%	95.45%	🔴 -0.10%
src/client/transports/rest_transport.ts	81.44%	81.26%	🔴 -0.18%
src/server/events/execution_event_queue.ts	94%	94.33%	🟢 +0.33%
src/server/express/rest_handler.ts	89.3%	89.12%	🔴 -0.18%
src/server/grpc/grpc_service.ts	68.15%	64.62%	🔴 -3.53%
src/server/request_handler/default_request_handler.ts	79.31%	77.99%	🔴 -1.32%
src/server/transports/jsonrpc/jsonrpc_transport_handler.ts	74.78%	77.13%	🟢 +2.35%
src/server/transports/rest/rest_transport_handler.ts	98.75%	98.67%	🔴 -0.08%
src/server/utils.ts	0%	57.89%	🟢 +57.89%
src/types/converters/to_proto.ts	92.68%	98.38%	🟢 +5.70%
Total	84.13%	83.94%	🔴 -0.19%

Generated by coverage-comment.yml

[gemini-code-assist]

Code Review

This pull request introduces a significant refactoring of the A2A protocol types, migrating from an older a2a_types.js definition to a new a2a.js definition. Key changes include renaming fields such as Message.content to Message.parts, TaskStatus.update to TaskStatus.message, and SendMessageConfiguration.blocking to SendMessageConfiguration.returnImmediately. The AgentCard structure has been updated to use supportedInterfaces instead of url, preferredTransport, and additionalInterfaces, and securityRequirements instead of security. Resource path handling for tasks and push notification configurations has been simplified, moving from name and parent fields to direct id and taskId parameters, which led to the removal of the id_decoding.ts file. Additionally, the setTaskPushNotificationConfig method has been removed from client and transport interfaces. A review comment points out that the listTasks method in the gRPC service is currently unimplemented and suggests either implementing it or providing more robust error handling.

[gemini-code-assist]

Code Review

This pull request introduces significant refactoring to the A2A protocol implementation, primarily by migrating from the legacy a2a_types.proto to a new a2a.proto definition. This change involves updating message structures (e.g., renaming request to message, content to parts, and update to message), updating transport handlers, and adjusting test cases to reflect these structural changes. Additionally, the pull request updates the AgentCard structure to use supportedInterfaces instead of url and additionalInterfaces, and updates various task status and push notification configurations. My feedback is to use UnsupportedOperationError instead of a generic Error in the listTasks implementation to correctly signal an unimplemented method.