Settings Update Error Handling

What: Plugin enable/disable operations now properly propagate errors to callers.

Details:

• Function sQ0() at line 489317 now captures and throws errors from B2() settings update
• Added error destructuring: let { error: Z } = B2("userSettings", { enabledPlugins: G })
• Throws error if settings update fails: if (Z) throw Z;
• Evidence: sQ0() at line 489317-489323

Why it matters: Previously, settings update failures could be silently ignored. Now callers can properly handle and report errors when plugin state changes fail.