aisman

Session 150, Step 4: Fix localStorage keys shared across users causing duplicate temp number collisions
- AIM-2793 Fix localStorage keys shared across users causing duplicate temp number collisions
- AIM-2794 Audit all localStorage keys for per-user vs global scope correctness

Outcome:
Fixed per-user localStorage scoping across the application. All AimLS-managed localStorage keys are now prefixed with the authenticated user's directory name, preventing data collisions when multiple users share the same browser. Also updated direct localStorage usage in dashboard-issues.js and dashboard-workflow.js for workflow state keys.