feat: CRM Clinicas SaaS - MVP completo

- Auth: Login/Register con creacion de clinica
- Dashboard: KPIs reales, graficas recharts
- Pacientes: CRUD completo con busqueda
- Agenda: FullCalendar, drag-and-drop, vista recepcion
- Expediente: Notas SOAP, signos vitales, CIE-10
- Facturacion: Facturas con IVA, campos CFDI SAT
- Inventario: Productos, stock, movimientos, alertas
- Configuracion: Clinica, equipo, catalogo servicios
- Supabase self-hosted: 18 tablas con RLS multi-tenant
- Docker + Nginx para produccion

Co-Authored-By: claude-flow <ruv@ruv.net>

supabase/migrations/002_patients.sql

@@ -0,0 +1,28 @@
+CREATE TABLE patients (
+  id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+  clinic_id UUID NOT NULL REFERENCES clinics(id) ON DELETE CASCADE,
+  first_name TEXT NOT NULL,
+  last_name TEXT NOT NULL,
+  date_of_birth DATE,
+  gender TEXT CHECK (gender IN ('M', 'F', 'otro')),
+  curp TEXT,
+  phone TEXT,
+  email TEXT,
+  address JSONB,
+  blood_type TEXT,
+  allergies TEXT[] DEFAULT '{}',
+  emergency_contact JSONB,
+  notes TEXT,
+  source TEXT,
+  is_active BOOLEAN NOT NULL DEFAULT TRUE,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_patients_clinic ON patients(clinic_id);
+CREATE INDEX idx_patients_name ON patients(clinic_id, last_name, first_name);
+CREATE INDEX idx_patients_phone ON patients(clinic_id, phone);
+
+ALTER TABLE patients ENABLE ROW LEVEL SECURITY;
+CREATE POLICY "Users can view clinic patients" ON patients FOR SELECT USING (clinic_id = auth.clinic_id());
+CREATE POLICY "Users can insert clinic patients" ON patients FOR INSERT WITH CHECK (clinic_id = auth.clinic_id());
+CREATE POLICY "Users can update clinic patients" ON patients FOR UPDATE USING (clinic_id = auth.clinic_id());