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"@cloudflare/ai-chat": patch
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fix(ai-chat): prevent duplicate messages after tool calls and orphaned client IDs

- CF_AGENT_MESSAGE_UPDATED handler no longer appends when message not found in client state, fixing race between transport stream and server broadcast
- \_resolveMessageForToolMerge reconciles IDs by toolCallId regardless of tool state, preventing client nanoid IDs from leaking into persistent storage