Finish Text Selection Families Macro

Goal

• Close Macro Task 3 at the planning layer.

Scope

• Mark the current text/selection family freeze boundary explicitly.
• Stop treating broader text/selection parity as the default queue.
• Push unsupported or migration-unforced text/selection breadth out of the active macro-task surface.

Phases

• Restate the proved text/selection surface
• Patch the roadmap/docs to mark Macro Task 3 done enough
• Verify the touched docs