Add documentation claim-language check and CI map pointer

[prayagv]

Summary

• Soften an unqualified maintainability claim in ADR-001.
• Add a documentation workflow that rejects workstation-only links and unqualified superlatives, matching the check used elsewhere in the organization.
• Point reviewers questioning the size of the workflow set at the existing CI workflow map.

Test plan

• Local grep confirms no banned self-assessment terms in tracked markdown.

[github-actions]

k6 Performance Summary

Run status: PASSED
Target: realworld-local (c8c66858a436a6e07f445fffe2253a65ff6dcb58)
Profile: validation on github-hosted

Metric	p50	p90	p95	p99	max	Rate	Count
http_req_duration	3.59	4.04	4.10	4.15	4.16	-	-
http_req_failed	-	-	-	-	-	0.0000	-
checks	-	-	-	-	-	1.0000	-
http_reqs	-	-	-	-	-	1.9813	2
iterations	-	-	-	-	-	0.9906	1
custom_article_read_duration_ms	4.16	4.16	4.16	4.16	4.16	-	-
custom_business_errors_total	-	-	-	-	-	0.0000	0