Add Datadog integration for metrics retrieval

[manthan787]

Description

Add basic Datadog integration to fetch metrics during investigations.

Why

Many SRE teams use Datadog for monitoring. Adding support would let RunbookAI pull relevant metrics when investigating incidents, improving context and diagnosis.

What to do

1. Create a new file src/providers/datadog/client.ts
2. Add configuration options in the config schema:

   providers:
     datadog:
       enabled: true
       apiKey: \${DATADOG_API_KEY}
       appKey: \${DATADOG_APP_KEY}
       site: datadoghq.com  # or datadoghq.eu

3. Implement basic methods:
   • queryMetrics(query: string, from: Date, to: Date)
   • getServiceMetrics(serviceName: string)
4. Add as a tool in src/tools/ for the agent to use

Resources

• Datadog API docs
• Look at src/providers/aws/client.ts for pattern reference

Getting Started

bun install
# Look at existing provider implementations
ls src/providers/

Good for learning the provider architecture!