CHANGE: Corrected The Use Of Title In The ProblemDetail Response

cms/internal/handlers/handlers.go

@@ -12,9 +12,10 @@ func Health(w http.ResponseWriter, r *http.Request) {
 
 // problemDetails is an error body in the RFC 9457 "Problem Details for HTTP
 // APIs" format. Type stays "about:blank" — the value RFC 9457 defines for
-// problems with no dedicated documentation URI — which is why Title carries
-// the plain HTTP status phrase and Detail carries the occurrence-specific
-// explanation.
+// problems with no dedicated documentation URI. Title is a short summary that
+// stays identical for every occurrence of the same problem, so clients can
+// branch on it; Detail explains this particular occurrence and is the only
+// member that varies with request data.
 type problemDetails struct {
 	Type   string `json:"type"`
 	Title  string `json:"title"`
@@ -26,10 +27,10 @@ func writeJSON(w http.ResponseWriter, status int, body any) {
 	writeJSONContent(w, "application/json", status, body)
 }
 
-func writeProblem(w http.ResponseWriter, status int, detail string) {
+func writeProblem(w http.ResponseWriter, status int, title, detail string) {
 	writeJSONContent(w, "application/problem+json", status, problemDetails{
 		Type:   "about:blank",
-		Title:  http.StatusText(status),
+		Title:  title,
 		Status: status,
 		Detail: detail,
 	})