chore(agent-think): deploy tracing preview build

[mattzcarey]

Summary

Pin agent-think's agents, @cloudflare/think, and @cloudflare/ai-chat dependencies to the immutable pkg.pr.new build for #1860 at d49b551. Think then emits invoke_agent, chat, and execute_tool spans through agent-think's already-enabled Workers tracing configuration.

This PR remains draft while the preview build runs in production.

Validation

• PR feat: Cloudflare-native AI tracing (agents/observability/ai) #1860 CI, Semgrep, conformance, and Continuous Releases passed for d49b551
• immutable agents, @cloudflare/think, and @cloudflare/ai-chat artifacts return successfully
• frozen pnpm install passed
• agent-think typecheck passed
• agent-think unit tests passed (8 files, 24 tests)
• real-container E2E tests passed (1 file, 5 tests)
• client production build passed
• formatting check passed
• Wrangler dry run bundled the Worker and container successfully
• generated Worker bundle contains the invoke_agent tracing instrumentation

Production smoke test

The previous preview deployment produced a correlated trace in Workers Observability with a successful invoke_agent ThinkAgent root, four chat children, and three execute_tool children. The repinned build will be redeployed and smoke-tested before this draft is marked ready.

Deployment

Pending deployment of the d49b551 preview build.

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Latest commit: 0bf30f0

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[pkg-pr-new]

Open in StackBlitz

agents

npm i https://pkg.pr.new/agents@1880

@cloudflare/ai-chat

npm i https://pkg.pr.new/@cloudflare/ai-chat@1880

@cloudflare/codemode

npm i https://pkg.pr.new/@cloudflare/codemode@1880

create-think

npm i https://pkg.pr.new/create-think@1880

hono-agents

npm i https://pkg.pr.new/hono-agents@1880

@cloudflare/shell

npm i https://pkg.pr.new/@cloudflare/shell@1880

@cloudflare/think

npm i https://pkg.pr.new/@cloudflare/think@1880

@cloudflare/voice

npm i https://pkg.pr.new/@cloudflare/voice@1880

@cloudflare/worker-bundler

npm i https://pkg.pr.new/@cloudflare/worker-bundler@1880

commit: 760cbd0

[mattzcarey]

Closing this preview-only deployment PR. No deployment was made from the latest commit; agent-think will wait for #1860 to merge and use the released packages instead.