Merge duplicate pingEndpoint/checkEndpointHealth in status.go

[ewega]

Problem

status.go has two near-identical functions:

• pingEndpoint(url, kind) string — returns emoji (✅, ❌, ⚠️)
• checkEndpointHealth(url, kind) bool — returns true/false

Both build the check URL the same way (append /ping for backend, /api/health for Grafana), create an http.Client with the same timeout (8s), make the same GET request, and check the same status code range. The only difference is the return type.

Fix

Refactor into one function and have the other call it:

`go
func checkEndpointHealth(url string, kind string) bool {
// ... shared logic ...
}

func pingEndpoint(url string, kind string) string {
if checkEndpointHealth(url, kind) {
return "✅"
}
return "❌"
}
`

(The ⚠️ case for non-2xx status codes would need a slightly different signature, but the core logic is shared.)

Acceptance Criteria

• One shared implementation for endpoint health checking
• status command output unchanged (same emojis, same JSON fields)
• go build ./... and go test ./... pass

[ewega]

Agent context: Merge pingEndpoint and checkEndpointHealth in cmd/status.go. Make checkEndpointHealth the single source of truth and have pingEndpoint call it. Note: PR #84 just merged and changed separator widths in status.go — branch from latest main. The ⚠️ case for non-2xx can return a tri-state (bool + separate warn check) or use an enum. Keep the external behavior of runStatus output identical. Build with go build ./... and test with go test ./....