docs(blog): use createFromReadableStream for the dashboard snippet

[tannerlinsley]

Summary

• The "Why this matters" dashboard example was using <CompositeComponent> for what is structurally a leaf server fragment with no client-filled slots
• Switches it to the basic primitive (createFromReadableStream), matching the pattern from the prior react-server-components post
• <CompositeComponent> is still introduced later in the post for the slot-based case (PostPage), which is its correct home

Test plan

• Re-read the "Why this matters" section — code now matches the surrounding prose ("ask the server for a rendered chart fragment, drop it into the tree")

Summary by CodeRabbit

• Documentation
  • Updated blog post with an improved example demonstrating how to render server-driven components with streaming capabilities.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 1e115d99-ef5a-4190-9419-09afbeab8026

📥 Commits

Reviewing files that changed from the base of the PR and between 9f681bb and dfc2bcb.

📒 Files selected for processing (1)

• src/blog/who-owns-the-tree-rsc-is-a-protocol-not-an-architecture.md

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📝 Walkthrough

Walkthrough

Updated a blog post example to demonstrate RSC stream handling. Replaced composite component pattern with createFromReadableStream approach, converting server response data into a readable stream for React decoding and rendering directly as JSX.

Changes

Cohort / File(s)	Summary
Blog Post Example Update src/blog/who-owns-the-tree-rsc-is-a-protocol-not-an-architecture.md	Updated dashboard example code to use createFromReadableStream for RSC rendering instead of wrapping with a composite component. Query result now stored as chart and asynchronously converts server response to readable stream.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

A rabbit hops through streams so clear,
Where RSCs now appear,
No composite wraps the data flow,
Just fragments dance in readableStream's glow,
Documentation blooms, the chart takes its bow! 🐰✨

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch taren/rsc-blog-fix-snippet

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