Fix MQTT password sync to actually update password.txt

- Add scripts/sync-mqtt-config.ts for standalone sync execution
- Update change-mqtt-admin-password.sh to use tsx to execute sync
- Now properly regenerates password.txt with new hashed password
- Mosquitto config is automatically reloaded after sync

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

change-mqtt-admin-password.sh

@@ -66,11 +66,48 @@ sleep 5
 echo -e "${GREEN}✓ App should be ready${NC}"
 echo
 
-# Step 4: Manual sync instruction (automatic sync removed due to authentication requirement)
-echo -e "${YELLOW}Step 4: MQTT configuration sync${NC}"
-echo -e "${YELLOW}Note: Automatic sync requires admin authentication.${NC}"
-echo -e "${YELLOW}Please log into the Admin Panel and click 'Sync MQTT Config' to apply the new password.${NC}"
-echo -e "${YELLOW}Alternatively, restart Mosquitto: docker compose restart mosquitto${NC}"
+# Step 4: Trigger MQTT configuration sync
+echo -e "${YELLOW}Step 4: Triggering MQTT configuration sync...${NC}"
+
+# Create a temporary TypeScript script that calls syncMosquittoConfig
+cat > /tmp/sync-mqtt.ts << 'EOF'
+import { syncMosquittoConfig } from './lib/mosquitto-sync';
+
+async function main() {
+  try {
+    console.log('Starting MQTT configuration sync...');
+    const result = await syncMosquittoConfig();
+
+    if (result.success) {
+      console.log('✓ Success:', result.message);
+      process.exit(0);
+    } else {
+      console.error('✗ Failed:', result.message);
+      process.exit(1);
+    }
+  } catch (error) {
+    console.error('✗ Error:', error instanceof Error ? error.message : String(error));
+    process.exit(1);
+  }
+}
+
+main();
+EOF
+
+# Copy script to container
+docker cp /tmp/sync-mqtt.ts location-tracker:/app/sync-mqtt.ts
+
+# Execute with tsx (suppressing npm warnings)
+if docker exec location-tracker npx --yes tsx /app/sync-mqtt.ts 2>&1 | grep -v "npm warn"; then
+    echo -e "${GREEN}✓ MQTT configuration synced successfully${NC}"
+else
+    echo -e "${RED}✗ Sync failed, but password is updated in .env${NC}"
+    echo -e "${YELLOW}You can manually trigger sync from the Admin Panel or restart Mosquitto${NC}"
+fi
+
+# Cleanup
+docker exec location-tracker rm -f /app/sync-mqtt.ts
+rm -f /tmp/sync-mqtt.ts
 
 echo
 echo -e "${GREEN}========================================${NC}"

scripts/sync-mqtt-config.ts

@@ -0,0 +1,27 @@
+#!/usr/bin/env node
+/**
+ * Standalone script to sync MQTT configuration
+ * This can be run directly without authentication
+ */
+
+import { syncMosquittoConfig } from '../lib/mosquitto-sync';
+
+async function main() {
+  try {
+    console.log('Starting MQTT configuration sync...');
+    const result = await syncMosquittoConfig();
+
+    if (result.success) {
+      console.log('✓ Success:', result.message);
+      process.exit(0);
+    } else {
+      console.error('✗ Failed:', result.message);
+      process.exit(1);
+    }
+  } catch (error) {
+    console.error('✗ Error:', error instanceof Error ? error.message : String(error));
+    process.exit(1);
+  }
+}
+
+main();