Initial Ladill Queue release — enterprise QMS standalone app.

Phases 1–6: tickets, counters, displays, appointments, workflows, rules, analytics, reports, feedback, admin, device API, and Gitea deploy workflow for queue.ladill.com.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Support/DatabaseTime.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Support;
+
+use Illuminate\Support\Facades\DB;
+
+class DatabaseTime
+{
+    public static function diffSeconds(string $fromColumn, string $toColumn): string
+    {
+        return match (DB::connection()->getDriverName()) {
+            'sqlite' => "CAST((julianday({$toColumn}) - julianday({$fromColumn})) * 86400 AS INTEGER)",
+            default => "TIMESTAMPDIFF(SECOND, {$fromColumn}, {$toColumn})",
+        };
+    }
+
+    public static function hourOf(string $column): string
+    {
+        return match (DB::connection()->getDriverName()) {
+            'sqlite' => "CAST(strftime('%H', {$column}) AS INTEGER)",
+            default => "HOUR({$column})",
+        };
+    }
+}