[EPIC][UI]: Notification center and alert management

[crivetimihai]

🔔 Epic: Notification Center & Alert Management

Goal

Build a centralized notification system with configurable alert rules, multiple delivery channels (email, Slack, webhook), notification history, and user preference management.

Why Now?

1. Proactive Operations: Alert on issues before users notice
2. Enterprise Need: Teams need configurable alerting
3. Integration: Connect to existing notification systems
4. Visibility: Centralized place for all system notifications

---

📖 User Stories

US-1: Notification Center

As a user
I want a centralized notification center
So that I can see all alerts and notifications in one place

Acceptance Criteria:

• Bell icon with unread count
• Notification dropdown/panel
• Mark as read/unread
• Filter by type/severity
• Link to related entity
• Clear all / Mark all read

US-2: Alert Rule Configuration

As an administrator
I want to configure alert rules
So that I'm notified of important events

Acceptance Criteria:

• Create rules with conditions
• Set severity levels (info, warning, critical)
• Choose notification channels
• Set thresholds (e.g., error rate > 5%)
• Enable/disable rules
• Test rule before saving

US-3: Notification Channels

As an administrator
I want multiple notification channels
So that alerts reach the right people

Acceptance Criteria:

• Email notifications
• Slack integration
• Webhook (generic)
• Microsoft Teams (optional)
• PagerDuty (optional)
• Channel test functionality

US-4: User Notification Preferences

As a user
I want to configure my notification preferences
So that I only receive relevant notifications

Acceptance Criteria:

• Subscribe/unsubscribe by category
• Choose delivery channel per category
• Set quiet hours
• Digest option (daily/weekly summary)
• Urgent override settings

US-5: Notification History

As a user
I want to view notification history
So that I can review past alerts

Acceptance Criteria:

• Searchable notification history
• Filter by date, type, severity
• Show delivery status
• Export history
• Retention policy configuration

---

📋 Implementation Tasks

Phase 1: Notification Center UI

• Create notification bell component
• Build notification dropdown
• Implement mark read/unread
• Add filtering
• Link to related entities

Phase 2: Alert Rules

• Design alert rule schema
• Build rule editor UI
• Implement condition builder
• Add threshold configuration
• Create rule testing

Phase 3: Channels

• Implement email notifications
• Build Slack integration
• Create webhook channel
• Add channel configuration UI
• Implement channel testing

Phase 4: User Preferences

• Build preferences UI
• Implement subscription management
• Add quiet hours
• Create digest functionality
• Handle urgent overrides

Phase 5: History & Analytics

• Create notification history store
• Build history viewer
• Add delivery tracking
• Implement export
• Create notification analytics

---

⚙️ Alert Rule Schema

alert_rules:
  - name: "High Error Rate"
    description: "Alert when error rate exceeds threshold"
    enabled: true
    condition:
      metric: error_rate
      operator: ">"
      threshold: 5
      duration: 5m
    severity: critical
    channels:
      - slack
      - pagerduty
    cooldown: 15m
    
  - name: "Server Down"
    description: "Alert when server becomes inactive"
    enabled: true
    condition:
      event: server_status_change
      filter:
        new_status: inactive
    severity: warning
    channels:
      - email
      - slack

Notification Example

{
  "id": "notif-uuid",
  "timestamp": "2024-01-15T10:30:00Z",
  "type": "alert",
  "severity": "critical",
  "title": "High Error Rate Detected",
  "message": "Error rate for 'database-query' tool is 8.5% (threshold: 5%)",
  "entity": {
    "type": "tool",
    "id": "tool-uuid",
    "name": "database-query"
  },
  "rule_id": "rule-uuid",
  "delivery": {
    "slack": { "status": "delivered", "at": "..." },
    "email": { "status": "delivered", "at": "..." }
  }
}

---

✅ Success Criteria

• Notification center shows all alerts
• Alert rules configurable via UI
• Email and Slack channels work
• User preferences respected
• Notification history searchable
• Channels testable before saving

---

📚 References

• Grafana Alerting
• PagerDuty API
• Slack Incoming Webhooks

[crivetimihai]

Related issues (alerting/notification scope):

• [EPIC][UI]: Alerting system with UI notification center #1471 - Foundation alerting system with UI
• [EPIC][UI]: Notification bell and real-time alerts UI #2312 - Bell icon and real-time alerts UI
• [EPIC][ADMIN]: Admin alerting and alert management #2311 - Admin alerting and alert management (similar scope, same milestone)