fix: update transaction-builder help link in unattended-commands

[ru513]

Summary

• Replace the outdated help.safe.global/en/articles/234052-transaction-builder link on the /advanced/cli-reference/unattended-commands page with the current https://help.safe.global/articles/4180673514-transaction-builder?lang=en URL.

Test plan

• Visit /advanced/cli-reference/unattended-commands and verify the "guide" link resolves to the live Transaction Builder help article.

🤖 Generated with Claude Code

[github-actions]

Branch preview

✅ Deployed successfully in branch deployment:

https://fix_unattended_commands_tx_builder_link--docs.review.5afe.dev

[github-actions]

Overall readability score: 36.62 (🟢 +0)

File	Readability
unattended-commands.mdx	62.44 (🟢 +0)

View detailed metrics

🟢 - Shows an increase in readability
🔴 - Shows a decrease in readability

File	Readability	FRE	GF	ARI	CLI	DCRS
unattended-commands.mdx	62.44	48.5	9.85	10.4	11.48	7.49
	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	36.62	31.42	13.21	16.35	14.76	8.72
	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0

View metric targets

Metric	Range	Ideal score
Flesch Reading Ease	100 (very easy read) to 0 (extremely difficult read)	60
Gunning Fog	6 (very easy read) to 17 (extremely difficult read)	8 or less
Auto. Read. Index	6 (very easy read) to 14 (extremely difficult read)	8 or less
Coleman Liau Index	6 (very easy read) to 17 (extremely difficult read)	8 or less
Dale-Chall Readability	4.9 (very easy read) to 9.9 (extremely difficult read)	6.9 or less