Harvest provtool diagnostics, enable ETW channel, skip Timeclock machine#

run-enrollment.ps1:
- Enable Provisioning-Diagnostics-Provider/Admin event log before invoking
  provtool (was disabled by default; no diagnostics survived early runs).
- After provtool returns, copy C:\ProgramData\Microsoft\Provisioning\*
  into C:\Logs\PPKG\ and snapshot HKLM\...\Sessions\* as
  provisioning-sessions.json, plus export the Admin event channel to
  Provisioning-Diagnostics-Admin.evtx. Gives us reviewable state
  without relying on provtool's failure-only diagnostic bundle.
- provtool arg order is positional path + /quiet + /source BPRT (verified
  against ProvEventLog from the PS cmdlet internal call).

startnet.cmd / startnet-template.cmd:
- Standard-Timeclock sub-type skips the machine-number prompt. Timeclock
  PCs do not use a machine number so forcing a prompt wasted tech time
  and left MACHINENUM at the 9999 default anyway. Machine sub-type is
  unaffected.

startnet-template.cmd

@@ -137,8 +137,9 @@ if "%standard_choice%"=="1" set PCSUBTYPE=Timeclock
 if "%standard_choice%"=="2" set PCSUBTYPE=Machine
 if "%PCSUBTYPE%"=="" goto standard_menu
 
-REM --- Machine number (Standard only) ---
+REM --- Machine number (Standard-Machine only; Timeclock PCs do not use one) ---
 set MACHINENUM=9999
+if "%PCSUBTYPE%"=="Timeclock" goto skip_standard_menu
 echo.
 set /p MACHINENUM=Enter machine number (digits, or Enter for 9999):
 if "%MACHINENUM%"=="" set MACHINENUM=9999