feat: add due date reminders functionality with cron jobs and test scripts

check-project-dates.mjs

@@ -0,0 +1,44 @@
+#!/usr/bin/env node
+
+import db from "./src/lib/db.js";
+import { parseISO, isAfter, startOfDay, addDays } from "date-fns";
+
+const today = startOfDay(new Date());
+const threeDaysFromNow = addDays(today, 3);
+const oneDayFromNow = addDays(today, 1);
+
+console.log(`Today: ${today.toISOString().split('T')[0]}`);
+console.log(`3 days from now: ${threeDaysFromNow.toISOString().split('T')[0]}`);
+console.log(`1 day from now: ${oneDayFromNow.toISOString().split('T')[0]}`);
+
+const projects = db.prepare(`
+    SELECT project_name, finish_date, project_status
+    FROM projects
+    WHERE finish_date IS NOT NULL
+    AND project_status != 'fulfilled'
+    AND project_status != 'cancelled'
+    ORDER BY finish_date ASC
+`).all();
+
+console.log(`\nFound ${projects.length} active projects with due dates:`);
+
+projects.forEach(project => {
+    try {
+        const finishDate = parseISO(project.finish_date);
+        const finishDateStart = startOfDay(finishDate);
+
+        const isDueIn3Days = finishDateStart.getTime() === threeDaysFromNow.getTime();
+        const isDueIn1Day = finishDateStart.getTime() === oneDayFromNow.getTime();
+        const isOverdue = isAfter(today, finishDateStart);
+
+        let status = '';
+        if (isDueIn3Days) status = '⚠️ DUE IN 3 DAYS';
+        else if (isDueIn1Day) status = '🚨 DUE IN 1 DAY';
+        else if (isOverdue) status = '❌ OVERDUE';
+        else status = '📅 Future';
+
+        console.log(`${status} - ${project.project_name}: ${project.finish_date.split('T')[0]} (${project.project_status})`);
+    } catch (error) {
+        console.log(`❌ Error parsing date for ${project.project_name}: ${project.finish_date}`);
+    }
+});