sync: Dataforth sync fixes, TestDataDB stability, and client scripts

Dataforth DOS:
- TestDataDB: singleton DB connection fix (crash prevention), WAL mode,
  WinSW service config, backup script, uncaught exception handlers
- Sync-FromNAS.ps1: Get-NASFileList temp file approach to avoid SSH
  stdout deadlock, *> $null output suppression, 8.3 filename filter
  for PUSH phase, backslash-escaped SCP paths, rename-to-.synced
- import.js: INSERT OR REPLACE for re-tested devices
- Full import run: 1,028,275 -> 1,632,793 records, indexes added
- Deploy script for sync fixes to AD2

Client scripts (temp/):
- BG Builders: Lesley account check, MFA phone update
- Lonestar Electrical: Kyla/Russ Google Workspace setup, 2FA bypass
- AD2 diagnostics and NAS connectivity tests

PENDING: Investigate why newest test_date is Jan 19 despite daily tests

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

temp/testdatadb.xml

@@ -0,0 +1,15 @@
+<service>
+	<id>testdatadb</id>
+	<name>TestDataDB</name>
+	<description>Dataforth Test Data Database Server</description>
+	<executable>C:\Program Files\nodejs\node.exe</executable>
+	<argument>C:\Shares\testdatadb\server.js</argument>
+	<logpath>C:\Shares\testdatadb\logs</logpath>
+	<logmode>rotate</logmode>
+	<stoptimeout>15sec</stoptimeout>
+	<workingdirectory>C:\Shares\testdatadb</workingdirectory>
+	<onfailure action="restart" delay="5 sec"/>
+	<onfailure action="restart" delay="10 sec"/>
+	<onfailure action="restart" delay="30 sec"/>
+	<resetfailure>1 hour</resetfailure>
+</service>