fix(api): rename CommitStatus state json tag from 'status' to 'state'

Aligns CommitStatus with CombinedStatus which already uses 'state'.
Fixes API inconsistency where individual statuses returned 'status'
but the combined endpoint returned 'state', causing client-side null
reads when accessing .state on individual CommitStatus objects.

modules/structs/status.go

@@ -14,7 +14,7 @@ type CommitStatus struct {
 	// ID is the unique identifier for the commit status
 	ID int64 `json:"id"`
 	// State represents the status state (pending, success, error, failure)
-	State commitstatus.CommitStatusState `json:"status"`
+	State commitstatus.CommitStatusState `json:"state"`
 	// TargetURL is the URL to link to for more details
 	TargetURL string `json:"target_url"`
 	// Description provides a brief description of the status