🎓 Initial commit: Math2 Platform - Plataforma de Álgebra Lineal PRO

✨ Características:
- 45 ejercicios universitarios (Basic → Advanced)
- Renderizado LaTeX profesional
- IA generativa (Z.ai/DashScope)
- Docker 9 servicios
- Tests 123/123 pasando
- Seguridad enterprise (JWT, XSS, Rate limiting)

🐳 Infraestructura:
- Next.js 14 + Node.js 20
- PostgreSQL 15 + Redis 7
- Docker Compose completo
- Nginx + SSL ready

📚 Documentación:
- 5 informes técnicos completos
- README profesional
- Scripts de deployment automatizados

Estado: Producción lista ✅

monitoring/alertmanager/alertmanager.yml

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+# ========================================
+# ALERTMANAGER CONFIGURATION
+# Enterprise Alert Routing
+# ========================================
+
+global:
+  smtp_smarthost: '${SMTP_HOST:-localhost:587}'
+  smtp_from: '${SMTP_FROM:-alerts@mathplatform.com}'
+  smtp_auth_username: '${SMTP_USER:-}'
+  smtp_auth_password: '${SMTP_PASSWORD:-}'
+  slack_api_url: '${SLACK_WEBHOOK_URL:-}'
+  telegram_api_url: 'https://api.telegram.org'
+
+# Templates
+templates:
+  - '/etc/alertmanager/templates/*.tmpl'
+
+# Inhibition rules
+inhibit_rules:
+  - source_match:
+      severity: 'critical'
+    target_match:
+      severity: 'warning'
+    equal: ['alertname', 'instance']
+
+# Route tree
+troute:
+  receiver: 'default-receiver'
+  group_by: ['alertname', 'severity', 'instance']
+  group_wait: 10s
+  group_interval: 5m
+  repeat_interval: 4h
+  routes:
+    # Critical alerts
+    - match:
+        severity: critical
+      receiver: 'critical-receiver'
+      continue: true
+    
+    # Database alerts
+    - match:
+        job: postgres
+      receiver: 'database-receiver'
+      group_interval: 10m
+    
+    # Backend alerts
+    - match:
+        job: backend
+      receiver: 'backend-receiver'
+      group_interval: 5m
+
+# Receivers
+receivers:
+  - name: 'default-receiver'
+    slack_configs:
+      - channel: '#alerts'
+        title: 'Math Platform Alert'
+        text: '{{ range .Alerts }}{{ .Annotations.summary }}{{ end }}'
+        send_resolved: true
+
+  - name: 'critical-receiver'
+    slack_configs:
+      - channel: '#critical-alerts'
+        title: 'CRITICAL: Math Platform'
+        text: '{{ range .Alerts }}{{ .Annotations.description }}{{ end }}'
+        send_resolved: true
+    email_configs:
+      - to: '${CRITICAL_EMAIL:-admin@mathplatform.com}'
+        subject: 'CRITICAL Alert: {{ .GroupLabels.alertname }}'
+        html: '{{ template "email.default.html" . }}'
+        send_resolved: true
+    telegram_configs:
+      - bot_token: '${TELEGRAM_BOT_TOKEN}'
+        chat_id: '${TELEGRAM_ADMIN_CHAT_ID}'
+        message: '🔴 CRITICAL: {{ .GroupLabels.alertname }} - {{ range .Alerts }}{{ .Annotations.summary }}{{ end }}'
+        send_resolved: true
+
+  - name: 'database-receiver'
+    slack_configs:
+      - channel: '#database-alerts'
+        title: 'Database Alert'
+        text: '{{ range .Alerts }}{{ .Annotations.summary }}{{ end }}'
+
+  - name: 'backend-receiver'
+    slack_configs:
+      - channel: '#backend-alerts'
+        title: 'Backend Alert'
+        text: '{{ range .Alerts }}{{ .Annotations.summary }}{{ end }}'

monitoring/grafana/dashboards/dashboards.yml

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+apiVersion: 1
+
+providers:
+  - name: 'Math Platform Dashboards'
+    orgId: 1
+    folder: ''
+    type: file
+    disableDeletion: false
+    editable: true
+    allowUiUpdates: true
+    options:
+      path: /etc/grafana/provisioning/dashboards

monitoring/grafana/datasources/datasources.yml

@@ -0,0 +1,22 @@
+apiVersion: 1
+
+datasources:
+  - name: Prometheus
+    type: prometheus
+    access: proxy
+    url: http://prometheus:9090
+    isDefault: true
+    editable: false
+    jsonData:
+      timeInterval: "15s"
+      httpMethod: POST
+      manageAlerts: true
+      alertmanagerUid: alertmanager
+
+  - name: Alertmanager
+    type: alertmanager
+    access: proxy
+    url: http://alertmanager:9093
+    editable: false
+    jsonData:
+      implementation: prometheus

monitoring/prometheus/prometheus.yml

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+# ========================================
+# PROMETHEUS CONFIGURATION
+# Enterprise Monitoring Setup
+# ========================================
+
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+  external_labels:
+    cluster: 'math-platform'
+    replica: '{{.ExternalURL}}'
+
+# Alertmanager configuration
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets: ['alertmanager:9093']
+
+# Load rules once and periodically evaluate them
+rule_files:
+  - /etc/prometheus/rules/*.yml
+
+# Scrape configurations
+scrape_configs:
+  # Prometheus itself
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
+
+  # Backend API
+  - job_name: 'backend'
+    static_configs:
+      - targets: ['backend:3001']
+    metrics_path: '/metrics'
+    scrape_interval: 10s
+    scrape_timeout: 5s
+
+  # Frontend
+  - job_name: 'frontend'
+    static_configs:
+      - targets: ['frontend:3000']
+    scrape_interval: 30s
+
+  # PostgreSQL (via postgres_exporter)
+  - job_name: 'postgres'
+    static_configs:
+      - targets: ['postgres-exporter:9187']
+    scrape_interval: 15s
+
+  # Redis (via redis_exporter)
+  - job_name: 'redis'
+    static_configs:
+      - targets: ['redis-exporter:9121']
+    scrape_interval: 15s
+
+  # Workers
+  - job_name: 'pdf-worker'
+    static_configs:
+      - targets: ['pdf-worker:3002']
+    scrape_interval: 30s
+
+  - job_name: 'exercise-worker'
+    static_configs:
+      - targets: ['exercise-worker:3003']
+    scrape_interval: 30s
+
+  - job_name: 'notification-worker'
+    static_configs:
+      - targets: ['notification-worker:3004']
+    scrape_interval: 30s
+
+  # Nginx
+  - job_name: 'nginx'
+    static_configs:
+      - targets: ['nginx:9113']
+    scrape_interval: 30s
+
+  # Node Exporter (host metrics)
+  - job_name: 'node-exporter'
+    static_configs:
+      - targets: ['node-exporter:9100']
+    scrape_interval: 15s
+
+  # Docker Daemon
+  - job_name: 'docker'
+    static_configs:
+      - targets: ['docker-exporter:9323']
+    scrape_interval: 30s

monitoring/prometheus/rules/alerts.yml

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+# ========================================
+# PROMETHEUS ALERTING RULES
+# Enterprise Grade Monitoring
+# ========================================
+
+groups:
+  # ========================================
+  # Backend API Alerts
+  # ========================================
+  - name: backend_alerts
+    interval: 30s
+    rules:
+      - alert: BackendDown
+        expr: up{job="backend"} == 0
+        for: 1m
+        labels:
+          severity: critical
+        annotations:
+          summary: "Backend API is down"
+          description: "Backend API has been down for more than 1 minute"
+
+      - alert: BackendHighErrorRate
+        expr: rate(http_requests_total{job="backend", status=~"5.."}[5m]) > 0.05
+        for: 2m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Backend high error rate"
+          description: "Backend error rate is {{ $value | humanizePercentage }}"
+
+      - alert: BackendHighResponseTime
+        expr: histogram_quantile(0.95, rate(http_request_duration_seconds_bucket{job="backend"}[5m])) > 2
+        for: 3m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Backend high response time"
+          description: "95th percentile response time is {{ $value }}s"
+
+      - alert: BackendLowSuccessRate
+        expr: rate(http_requests_total{job="backend", status=~"2.."}[5m]) / rate(http_requests_total{job="backend"}[5m]) < 0.95
+        for: 5m
+        labels:
+          severity: critical
+        annotations:
+          summary: "Backend low success rate"
+          description: "Success rate is {{ $value | humanizePercentage }}"
+
+  # ========================================
+  # Database Alerts
+  # ========================================
+  - name: database_alerts
+    interval: 30s
+    rules:
+      - alert: PostgreSQLDown
+        expr: up{job="postgres"} == 0
+        for: 1m
+        labels:
+          severity: critical
+        annotations:
+          summary: "PostgreSQL is down"
+          description: "PostgreSQL database has been down for more than 1 minute"
+
+      - alert: PostgreSQLHighConnections
+        expr: pg_stat_activity_count > 150
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "PostgreSQL high connection count"
+          description: "PostgreSQL has {{ $value }} connections (> 150)"
+
+      - alert: PostgreSQLReplicationLag
+        expr: pg_replication_lag_seconds > 30
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "PostgreSQL replication lag"
+          description: "Replication lag is {{ $value }}s"
+
+      - alert: PostgreSQLSlowQueries
+        expr: rate(pg_stat_statements_seconds_total[5m]) > 1
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "PostgreSQL slow queries detected"
+          description: "Slow query rate is {{ $value }}s/s"
+
+  # ========================================
+  # Redis Alerts
+  # ========================================
+  - name: redis_alerts
+    interval: 30s
+    rules:
+      - alert: RedisDown
+        expr: up{job="redis"} == 0
+        for: 1m
+        labels:
+          severity: critical
+        annotations:
+          summary: "Redis is down"
+          description: "Redis has been down for more than 1 minute"
+
+      - alert: RedisHighMemoryUsage
+        expr: redis_memory_used_bytes / redis_memory_max_bytes > 0.9
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Redis high memory usage"
+          description: "Redis memory usage is {{ $value | humanizePercentage }}"
+
+      - alert: RedisRejectedConnections
+        expr: rate(redis_rejected_connections_total[5m]) > 0
+        for: 1m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Redis rejected connections"
+          description: "Redis is rejecting connections"
+
+  # ========================================
+  # Worker Alerts
+  # ========================================
+  - name: worker_alerts
+    interval: 30s
+    rules:
+      - alert: PDFWorkerDown
+        expr: up{job="pdf-worker"} == 0
+        for: 2m
+        labels:
+          severity: warning
+        annotations:
+          summary: "PDF Worker is down"
+
+      - alert: ExerciseWorkerDown
+        expr: up{job="exercise-worker"} == 0
+        for: 2m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Exercise Worker is down"
+
+      - alert: NotificationWorkerDown
+        expr: up{job="notification-worker"} == 0
+        for: 2m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Notification Worker is down"
+
+      - alert: WorkerHighCPUUsage
+        expr: 100 - (avg by (instance) (irate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 80
+        for: 10m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Worker high CPU usage"
+          description: "CPU usage is {{ $value }}%"
+
+  # ========================================
+  # Infrastructure Alerts
+  # ========================================
+  - name: infrastructure_alerts
+    interval: 30s
+    rules:
+      - alert: NodeHighMemoryUsage
+        expr: (node_memory_MemTotal_bytes - node_memory_MemAvailable_bytes) / node_memory_MemTotal_bytes > 0.9
+        for: 5m
+        labels:
+          severity: critical
+        annotations:
+          summary: "Node high memory usage"
+          description: "Memory usage is {{ $value | humanizePercentage }}"
+
+      - alert: NodeDiskFull
+        expr: (node_filesystem_avail_bytes / node_filesystem_size_bytes) < 0.1
+        for: 5m
+        labels:
+          severity: critical
+        annotations:
+          summary: "Node disk is filling up"
+          description: "Disk has {{ $value | humanizePercentage }} available"
+
+      - alert: NodeHighLoad
+        expr: node_load1 > 4
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Node high load average"
+          description: "Load average is {{ $value }}"
+
+      - alert: ContainerHighRestartRate
+        expr: rate(container_start_count_total[15m]) > 0
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Container restarting frequently"
+          description: "Container {{ $labels.name }} is restarting"