v1.4.2

• Improved Options-page reliability by consolidating browser API compatibility handling for tab actions and diagnostics messaging.
• Improved diagnostics UX on failure by clearing stale summary/list content so outdated results are not shown.
• Simplified recovery list rendering flow to reduce UI edge-case drift while preserving existing reopen behavior.
• Refactored Options runtime internals into focused modules for easier maintenance without changing suspend policy semantics.