Merge upstream/main; adopt articles[] eval override, add sample-link READ convention

- Resolve conflicts in al-data-modeling-review.md by keeping both sides'
  additions (folder-path support, InitRecord/Round cues from upstream;
  the 9 document-distribution/pricing/barcode cues from this branch).
- Switch the data-modeling evaluation override from an ad-hoc
  additionalArticles field to upstream's now-established articles[]
  convention (used elsewhere for finance/scm/query/reporting/style),
  removing the redundant parallel code path from Test-ReviewFixtures.ps1.
- Fix all 9 new articles' sample references to the markdown-link READ
  convention required by Knowledge-Retrieval.ps1's Assert-SampleLink
  (plain backticks satisfy validate_frontmatter.py's regex alone but not
  this stricter check - both validators must pass).

Validators: frontmatter 0/0, review-fixtures 126 cases/20 domains PASSED,
knowledge-index 342 articles/575 samples PASSED, skill-index 19 review
leaves PASSED.

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

microsoft/knowledge/data-modeling/custom-document-dispatch-must-not-bypass-report-selections.md

@@ -40,7 +40,7 @@ what validation must pass before sending — is genuinely specific to the
 document. Custom logic belongs around the call to `Report Selections`,
 not instead of it.
 
-See sample: `custom-document-dispatch-must-not-bypass-report-selections.good.al`.
+See sample: [`custom-document-dispatch-must-not-bypass-report-selections.good.al`](custom-document-dispatch-must-not-bypass-report-selections.good.al).
 
 ## Anti Pattern
 
@@ -51,7 +51,7 @@ without a code change and a new release, and the document is invisible to
 "Document Layouts" — the standard place every other document's
 distribution is configured.
 
-See sample: `custom-document-dispatch-must-not-bypass-report-selections.bad.al`.
+See sample: [`custom-document-dispatch-must-not-bypass-report-selections.bad.al`](custom-document-dispatch-must-not-bypass-report-selections.bad.al).
 
 ## Source