feat[backend](tenants): added events and purge operations on events

[AlexSanchez-bit]

No description provided.

[github-actions]

🛑 AI review — Sensitive area, extra care recommended

This PR touches critical paths or introduces changes the model cannot judge with sufficient confidence. Review carefully before merging.

✅ architecture (gemini-3-flash-lite) — clean

Summary: Added audit event types for tenant reactivation/purge and a ClickHouse tenant purge store method.

No findings.

✅ bugs (gemini-3-flash-lite) — clean

Summary: Added tenant purge event types and eventstore PurgeTenant implementation with UUID validation.

No findings.

🛑 security (gemini-3-flash-lite) — high/critical — please review

Summary: Introduces tenant purge functionality with ClickHouse query construction touching data deletion paths.

No findings.

🔴 go-deps — pending updates

🔍 Discovered 30 Go projects

📦 Dependencies with updates available:

  📁 ./plugins/crowdstrike:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/azure:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/soc-ai:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/events:
     - github.com/threatwinds/go-sdk: v1.1.27-0.20260811073440-251cb9d842cd → v1.1.31

  📁 ./plugins/gcp:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/bitdefender:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/o365:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/rule-flood-guard:
     - github.com/threatwinds/go-sdk: v1.1.27-0.20260811073440-251cb9d842cd → v1.1.31

  📁 ./plugins/stats:
     - github.com/threatwinds/go-sdk: v1.1.27-0.20260811073440-251cb9d842cd → v1.1.31

  📁 ./plugins/feeds:
     - github.com/threatwinds/go-sdk: v1.1.27-0.20260811073440-251cb9d842cd → v1.1.31

  📁 ./plugins/geolocation:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/playground:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/soar:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/sophos:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./plugins/alerts:
     - github.com/threatwinds/go-sdk: v1.1.27-0.20260811073440-251cb9d842cd → v1.1.31

  📁 ./plugins/aws:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./log-input:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./backend:
     - github.com/aws/aws-sdk-go-v2/config: v1.32.36 → v1.32.37
     - github.com/aws/aws-sdk-go-v2/credentials: v1.19.35 → v1.19.36
     - github.com/aws/aws-sdk-go-v2/service/sts: v1.45.5 → v1.45.6
     - github.com/threatwinds/go-sdk: v1.1.27-0.20260811073440-251cb9d842cd → v1.1.31

  📁 ./collectors/collector:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./collectors/forwarder:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./collectors/as400:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./collectors/utmstack:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./tools/rulecheck:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./agent-manager:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./agent:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

❌ Please update dependencies before merging.