fix[installer](nginx): added keepalive instruction on agent manager g…

[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) — high/critical — please review

Summary: Installer template removes gRPC SSL verification and affects agent communication paths.

• high installer/templates/front-end.go:75 — Removal of 'grpc_ssl_verify off;' disables self-signed certificate acceptance for agent gRPC connections. Unless a trusted CA is fully provisioned and validated across all existing deployed agents in the wild, this will break communication for agents currently using self-signed certificates, constituting a breaking agent compatibility change.

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

Summary: Removal of grpc_ssl_verify off breaks connections to backend gRPC services using self-signed certificates.

• high installer/templates/front-end.go:74 — Removal of grpc_ssl_verify off for /agent.AgentService/ will cause TLS handshake failures if the backend uses self-signed certificates, which is common in internal cluster deployments.

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

Summary: Nginx configuration template modified to enforce gRPC SSL verification by removing grpc_ssl_verify off.

No findings.

🔴 go-deps — pending updates

🔍 Discovered 31 Go projects

📦 Dependencies with updates available:

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

  📁 ./plugins/azure:
     - github.com/Azure/azure-sdk-for-go/sdk/azcore: v1.23.0 → v1.23.1
     - 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:
     - cloud.google.com/go/pubsub: v1.51.0 → v1.51.1
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31
     - google.golang.org/api: v0.293.0 → v0.296.0

  📁 ./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/shared:
     - golang.org/x/crypto: v0.49.0 → v0.55.0

  📁 ./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/aws/aws-sdk-go-v2: v1.43.6 → v1.45.1
     - github.com/aws/aws-sdk-go-v2/config: v1.32.37 → v1.33.2
     - github.com/aws/aws-sdk-go-v2/credentials: v1.19.36 → v1.20.2
     - github.com/aws/aws-sdk-go-v2/service/cloudwatchlogs: v1.82.2 → v1.85.0
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31

  📁 ./log-input:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31
     - google.golang.org/grpc: v1.83.0 → v1.83.2

  📁 ./backend:
     - cloud.google.com/go/pubsub: v1.51.0 → v1.51.1
     - github.com/aws/aws-sdk-go-v2/config: v1.32.36 → v1.33.2
     - github.com/aws/aws-sdk-go-v2/credentials: v1.19.35 → v1.20.2
     - github.com/aws/aws-sdk-go-v2/service/sts: v1.45.5 → v1.48.0
     - google.golang.org/api: v0.293.0 → v0.296.0
     - google.golang.org/grpc: v1.83.0 → v1.83.2

  📁 ./collectors/collector:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31
     - google.golang.org/grpc: v1.83.0 → v1.83.2

  📁 ./collectors/forwarder:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31
     - google.golang.org/grpc: v1.83.0 → v1.83.2

  📁 ./collectors/as400:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31
     - google.golang.org/grpc: v1.83.0 → v1.83.2

  📁 ./collectors/utmstack:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31
     - google.golang.org/grpc: v1.83.0 → v1.83.2

  📁 ./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
     - google.golang.org/grpc: v1.83.0 → v1.83.2

  📁 ./agent:
     - github.com/threatwinds/go-sdk: v1.1.28 → v1.1.31
     - google.golang.org/grpc: v1.83.0 → v1.83.2

❌ Please update dependencies before merging.