Clarify snippet body parameters and file requirements

[jed]

Updated snippet requirements to clarify file handling and ES module usage.

Summary

The Snippets upload API is superficially identical to the Workers API, but unlike Workers, does not support uploading non-ESM files. This change reflects this in the documentation.

Documentation checklist

• The change adheres to the documentation style guide.

[cloudflare-docs-bot]

Review

💡 2 suggestions found in commit 41bf281.

👉 Fix in your agent 👈

Fix the following review findings in PR #33440 (https://github.com/cloudflare/cloudflare-docs/pull/33440).

Before making changes, review each finding and present a brief summary table:
- For each finding, state whether you agree, disagree, or need clarification
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After triaging, follow this order:
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---

## Style Guide Review

### Suggestions (2)

#### SG-903d2566fba9 · Bullet list with fewer than three items
- **File:** `src/content/docs/rules/snippets/create-api.mdx` line 71
- **Issue:** The `files`/`metadata` bullet list contains only two items
- **Fix:** Consider writing the two parameters as prose instead of a bullet list, or expand the list with additional items

#### SG-34f2c1963a21 · Passive voice
- **File:** `src/content/docs/rules/snippets/create-api.mdx` line 71
- **Issue:** `non-ESM files such as JSON, text, binary, or WebAssembly files are not supported and are rejected when you upload them`
- **Fix:** Rewrite in active voice, for example: `Cloudflare does not support non-ESM files such as JSON, text, binary, or WebAssembly files and rejects them when you upload them.`

Code Review

This code review is in beta and may not always be helpful — use your judgment.

_{No code review issues found.}

Conventions

_{No convention issues found.}

Style Guide Review

Suggestions (2)

File	Issue
rules/snippets/create-api.mdx line 71	Bullet list with fewer than three items — The files/metadata bullet list contains only two items Fix: Consider writing the two parameters as prose instead of a bullet list, or expand the list with additional items
rules/snippets/create-api.mdx line 71	Passive voice — non-ESM files such as JSON, text, binary, or WebAssembly files are not supported and are rejected when you upload them Fix: Rewrite in active voice, for example: Cloudflare does not support non-ESM files such as JSON, text, binary, or WebAssembly files and rejects them when you upload them.

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