feat: Complete Sprints 3 & 4 - Email, Reschedule, OCR, Upload, Contact Forms

Sprint 3 - Crisis y Agenda (100%):
- Implement SMTP email service with nodemailer
- Create email templates (reschedule, daily agenda, course inquiry)
- Add appointment reschedule functionality with modal
- Add Google Calendar updateEvent function
- Create scheduled job for daily agenda email at 10 PM
- Add manual trigger endpoint for testing

Sprint 4 - Pagos y Roles (100%):
- Add Payment proof upload with OCR (tesseract.js, pdf-parse)
- Extract data from proofs (amount, date, reference, sender, bank)
- Create PaymentUpload component with drag & drop
- Add course contact form to /cursos page
- Update Services button to navigate to /servicios
- Add Reschedule button to Assistant and Therapist dashboards
- Add PaymentUpload component to Assistant dashboard
- Add eventId field to Appointment model
- Add OCR-extracted fields to Payment model
- Update Prisma schema and generate client
- Create API endpoints for reschedule, upload-proof, courses contact
- Create manual trigger endpoint for daily agenda job
- Initialize daily agenda job in layout.tsx

Dependencies added:
- nodemailer, node-cron, tesseract.js, sharp, pdf-parse, @types/nodemailer

Files created/modified:
- src/infrastructure/email/smtp.ts
- src/lib/email/templates/*
- src/jobs/send-daily-agenda.ts
- src/app/api/calendar/reschedule/route.ts
- src/app/api/payments/upload-proof/route.ts
- src/app/api/contact/courses/route.ts
- src/app/api/jobs/trigger-agenda/route.ts
- src/components/dashboard/RescheduleModal.tsx
- src/components/dashboard/PaymentUpload.tsx
- src/components/forms/CourseContactForm.tsx
- src/app/dashboard/asistente/page.tsx (updated)
- src/app/dashboard/terapeuta/page.tsx (updated)
- src/app/cursos/page.tsx (updated)
- src/components/layout/Services.tsx (updated)
- src/infrastructure/external/calendar.ts (updated)
- src/app/layout.tsx (updated)
- prisma/schema.prisma (updated)
- src/lib/validations.ts (updated)
- src/lib/env.ts (updated)

Tests:
- TypeScript typecheck: No errors
- ESLint: Only warnings (img tags, react-hooks)
- Production build: Successful

Documentation:
- Updated CHANGELOG.md with Sprint 3/4 changes
- Updated PROGRESS.md with 100% completion status
- Updated TASKS.md with completed tasks

src/app/api/auth/login/route.ts

@@ -0,0 +1,44 @@
+import { NextRequest, NextResponse } from "next/server";
+import { prisma } from "@/infrastructure/db/prisma";
+import { ROLES, setAuthCookies } from "@/middleware/auth";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const { phone, password } = body;
+
+    if (!phone) {
+      return NextResponse.json({ error: "Phone is required" }, { status: 400 });
+    }
+
+    const user = await prisma.user.findUnique({
+      where: { phone },
+    });
+
+    if (!user) {
+      return NextResponse.json({ error: "User not found" }, { status: 404 });
+    }
+
+    if (user.password && user.password !== password) {
+      return NextResponse.json({ error: "Invalid password" }, { status: 401 });
+    }
+
+    const token = Buffer.from(`${user.id}:${Date.now()}`).toString("base64");
+
+    const response = NextResponse.json({
+      success: true,
+      user: {
+        id: user.id,
+        name: user.name,
+        email: user.email,
+        phone: user.phone,
+        role: user.role,
+      },
+    });
+
+    return setAuthCookies(response, token, user.id);
+  } catch (error) {
+    console.error("Login error:", error);
+    return NextResponse.json({ error: "Internal server error" }, { status: 500 });
+  }
+}