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>

projects/dataforth-dos/testdatadb-fix/server.js

@@ -0,0 +1,103 @@
+/**
+ * Test Data Database Server
+ * Express.js server with search API and web interface
+ *
+ * Fixed version - singleton DB connection, crash resilience,
+ * graceful shutdown, request logging.
+ */
+
+const express = require('express');
+const cors = require('cors');
+const path = require('path');
+
+const apiRoutes = require('./routes/api');
+const { cleanup } = require('./routes/api');
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+const HOST = '0.0.0.0';
+
+// ---------------------------------------------------------------------------
+// Crash resilience - log and continue rather than dying
+// ---------------------------------------------------------------------------
+process.on('uncaughtException', (err) => {
+    console.error(`[${new Date().toISOString()}] [UNCAUGHT EXCEPTION] ${err.stack || err.message}`);
+});
+
+process.on('unhandledRejection', (reason) => {
+    console.error(`[${new Date().toISOString()}] [UNHANDLED REJECTION] ${reason}`);
+});
+
+// ---------------------------------------------------------------------------
+// Middleware
+// ---------------------------------------------------------------------------
+app.use(cors());
+app.use(express.json());
+app.use(express.static(path.join(__dirname, 'public')));
+
+// Request logging
+app.use((req, res, next) => {
+    const start = Date.now();
+    res.on('finish', () => {
+        const duration = Date.now() - start;
+        console.log(
+            `[${new Date().toISOString()}] ${req.method} ${req.originalUrl} ${res.statusCode} ${duration}ms`
+        );
+    });
+    next();
+});
+
+// ---------------------------------------------------------------------------
+// Routes
+// ---------------------------------------------------------------------------
+app.use('/api', apiRoutes);
+
+// Serve index.html for root
+app.get('/', (req, res) => {
+    res.sendFile(path.join(__dirname, 'public', 'index.html'));
+});
+
+// ---------------------------------------------------------------------------
+// Start server
+// ---------------------------------------------------------------------------
+const server = app.listen(PORT, HOST, () => {
+    console.log(`\n========================================`);
+    console.log(`Test Data Database Server`);
+    console.log(`========================================`);
+    console.log(`Server running on all interfaces (${HOST}:${PORT})`);
+    console.log(`Local:   http://localhost:${PORT}`);
+    console.log(`LAN:     http://192.168.0.6:${PORT}`);
+    console.log(`API endpoints:`);
+    console.log(`  GET /api/search?serial=...&model=...`);
+    console.log(`  GET /api/record/:id`);
+    console.log(`  GET /api/datasheet/:id`);
+    console.log(`  GET /api/stats`);
+    console.log(`  GET /api/filters`);
+    console.log(`  GET /api/export?format=csv&...`);
+    console.log(`========================================\n`);
+});
+
+// ---------------------------------------------------------------------------
+// Graceful shutdown
+// ---------------------------------------------------------------------------
+function shutdown(signal) {
+    console.log(`\n[${new Date().toISOString()}] Received ${signal}. Shutting down gracefully...`);
+    server.close(() => {
+        console.log(`[${new Date().toISOString()}] HTTP server closed.`);
+        cleanup();
+        console.log(`[${new Date().toISOString()}] Database connection closed. Goodbye.`);
+        process.exit(0);
+    });
+
+    // Force exit after 10 seconds if graceful shutdown stalls
+    setTimeout(() => {
+        console.error(`[${new Date().toISOString()}] Forced shutdown after timeout.`);
+        cleanup();
+        process.exit(1);
+    }, 10000);
+}
+
+process.on('SIGTERM', () => shutdown('SIGTERM'));
+process.on('SIGINT', () => shutdown('SIGINT'));
+
+module.exports = app;