Port PR #4084 to release/7.0: Fix API docs and doc include paths

[Copilot]

• Cherry-pick PR Fix API docs #4084 changes (doc/snippets XML formatting fixes for SqlCommand.xml, SqlDataAdapter.xml, SqlDataReader.xml)
• Fix doc include paths in SqlDataReader.cs (GetSqlJson, GetSqlVector) from ../../../../ to ../../../../../../
• Fix doc include paths in SqlDbTypeExtensions.cs from ../../../../ to ../../../../../
• Fix doc include paths in SqlJson.cs from ../../../../ to ../../../../../../
• Fix doc include paths in SqlVector.cs from ../../../../ to ../../../../../../
• Code review and security scan
• Create PR against release/7.0

[Copilot]

Pull request overview

Ports doc-generation fixes from PR #4084 onto release/7.0 to resolve broken API doc includes and improve DocFX/XML output for several SqlClient APIs (notably JSON and vector types).

Changes:

• Fixed <include file='...'> relative paths in source to correctly reference doc/snippets from the unified src/ tree (SqlDataReader, SqlJson, SqlVector, SqlDbTypeExtensions).
• Cleaned up snippet XML formatting (whitespace/trailing spaces) and corrected a few xref targets (generic SqlVector<T> and retry-logic generic method xrefs; DataAdapter event xrefs).

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlTypes/SqlVector.cs	Adjusts doc snippet include paths to the correct repo-relative location.
src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlTypes/SqlJson.cs	Adjusts doc snippet include paths to the correct repo-relative location.
src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlDbTypeExtensions.cs	Adjusts doc snippet include paths to the correct repo-relative location.
src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlDataReader.cs	Adjusts doc snippet include paths for GetSqlJson / GetSqlVector.
doc/snippets/Microsoft.Data.SqlClient/SqlDataReader.xml	Formatting cleanup + fixes SqlVector xrefs to the generic type (SqlVector\1`).
doc/snippets/Microsoft.Data.SqlClient/SqlDataAdapter.xml	Formatting cleanup + changes references to RowUpdating/RowUpdated to event xrefs.
doc/snippets/Microsoft.Data.SqlClient/SqlCommand.xml	Formatting cleanup + fixes DocFX xrefs for generic retry-logic methods and SqlVector<T> references.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 65.58%. Comparing base (864f666) to head (04ee13e).
⚠️ Report is 2 commits behind head on release/7.0.

❗ There is a different number of reports uploaded between BASE (864f666) and HEAD (04ee13e). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (864f666)	HEAD (04ee13e)
CI-SqlClient	1	0

Additional details and impacted files

@@               Coverage Diff               @@
##           release/7.0    #4107      +/-   ##
===============================================
- Coverage        73.07%   65.58%   -7.50%     
===============================================
  Files              280      275       -5     
  Lines            42997    65822   +22825     
===============================================
+ Hits             31422    43168   +11746     
- Misses           11575    22654   +11079     

Flag	Coverage Δ
CI-SqlClient	?
PR-SqlClient-Project	65.58% <ø> (?)

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