feat(auth-graph): enforce semantic client contract #59

Job	Run time
Mermaid Diagram Syntax	31s
MASTER_INDEX Navigation	7s
Markdown Lint & Style	24s
Internal & External Link Validation	2m 23s
ADR Numbering & Status	7s
Sensitive Information Scan	4s
Bilingual Documentation Sync	5s
Documentation QA Report	6s
Documentation Quality Gate	3s
	3m 50s

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