chore: import upstream snapshot with attribution

python/packages/bedrock/AGENTS.md

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+# Bedrock Package (agent-framework-bedrock)
+
+Integration with AWS Bedrock for LLM inference.
+
+## Main Classes
+
+- **`BedrockChatClient`** - Chat client for AWS Bedrock models
+- **`BedrockChatOptions`** - Options TypedDict for Bedrock-specific parameters
+- **`BedrockGuardrailConfig`** - Configuration for Bedrock guardrails
+- **`BedrockSettings`** - Pydantic settings for Bedrock configuration
+
+## Usage
+
+```python
+from agent_framework.amazon import BedrockChatClient
+
+client = BedrockChatClient(model="anthropic.claude-3-sonnet-20240229-v1:0")
+response = await client.get_response("Hello")
+```
+
+## Import Path
+
+```python
+from agent_framework.amazon import BedrockChatClient
+```