Add repo classification (domain: infotech, secondary: financials)

Source of truth for the state hub's domain/secondary-domain assignment,
synced via register_repo_from_classification.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.repo-classification.yaml

@@ -0,0 +1,16 @@
+repo_classification:
+  standard: Repo Classification Standard
+  version: '1.0'
+  classified_at: '2026-07-28'
+  classified_by: agent
+  category: project
+  domain: infotech
+  secondary_domains:
+  - financials
+  capability_tags: []
+  business_stake:
+  - technology
+  - product
+  business_mechanics:
+  - control
+  - operation