v9.19 - execution continuity and goal review owners

Summary

• promote high-signal-communication.md into the active runtime rule set
• add first-class execution-continuity-and-mode-selection and goal-set-review-and-priority-balance owner chains
• sync companion rules, phase/patch artifacts, master surfaces, and installed runtime parity

Included waves

• wave 032: high-signal communication promotion and sync
• wave 033: execution continuity and goal-set review owners