Script to automatically create doc stubs for compat flags

[npaun]

I asked Claude to vibe code a script to generate stub documentation for compatibility flags. It looks through compatibility-date.capnp and automatically makes a markdown file in cloudflare-docs for each flag it finds that meets the criteria. You'll still need to tweak the output before committing to remove any 'inside baseball' details about the implementation that aren't interesting for users, but this will get you started.

Currently it'll document flags that:

• Have a default enable date or are implied by another flag after a date
• Aren't experimental

Let me know if you'd find this script useful too.

See here for the output it produces (after my manual editing): cloudflare/cloudflare-docs#27450

[codspeed-hq]

Merging this PR will improve performance by 26.33%

⚡ 1 improved benchmark
✅ 69 untouched benchmarks
⏩ 129 skipped benchmarks¹

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	bodyWithHeaders[Response]	38.6 µs	30.5 µs	+26.33%

---

_{Comparing npaun/compat-docs-generator (4aa2380) with main (2536901)}

Footnotes

1. 129 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩