Query Store grid context menu needs copy commands

[erikdarlingdata]

Which component(s) does this affect?

• Desktop App
• CLI Tool
• SSMS Extension
• Plan Analysis Rules
• Documentation

Problem Statement

The right-click context menu on the Query Store data grid only has "Load Plan" as an option. It should also have copy commands for row/cell content (e.g., Copy Cell, Copy Row, Copy Query Hash, etc.) to make it easy to grab identifiers and values without manual selection.

Proposed Solution

Add context menu items for:

• Copy Cell Value
• Copy Row (tab-delimited)
• Copy Query Text
• Copy Query Hash
• Copy Plan Hash