Implement OpenAI-compatible agents API backed by Amazon Bedrock Agents. * POST /v1/agents * GET /v1/agents * GET /v1/agents/{agent_id} * POST /v1/agents/{agent_id} * DELETE /v1/agents/{agent_id} REF: * https://platform.openai.com/docs/api-reference/agents * https://docs.aws.amazon.com/bedrock/latest/userguide/agents.html
Implement OpenAI-compatible agents API backed by Amazon Bedrock Agents.
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