Add Cloudflare Pages docs preview with /preview-docs slash command #3242

Job	Run time
checks / readme-snippets	15s
checks / test (3.14, locked, windows-latest)	2m 44s
checks / pre-commit	56s
checks / test (3.11, locked, windows-latest)	1m 37s
checks / test (3.13, locked, windows-latest)	1m 48s
checks / test (3.14, lowest-direct, windows-latest)	1m 49s
checks / test (3.14, locked, ubuntu-latest)	2m 15s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 7s
checks / test (3.12, locked, ubuntu-latest)	1m 36s
checks / test (3.10, lowest-direct, windows-latest)	1m 53s
checks / test (3.13, locked, ubuntu-latest)	1m 10s
checks / test (3.10, locked, windows-latest)	2m 5s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 18s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 8s
checks / test (3.11, locked, ubuntu-latest)	1m 16s
checks / test (3.13, lowest-direct, windows-latest)	2m 0s
checks / test (3.11, lowest-direct, windows-latest)	2m 6s
checks / test (3.10, locked, ubuntu-latest)	1m 19s
checks / test (3.12, locked, windows-latest)	1m 54s
checks / test (3.12, lowest-direct, windows-latest)	2m 16s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 14s
checks / docs	38s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 17s
all-green	5s
	35m 46s

Provide feedback