fix(apiserver): match JWT-excluded paths exactly, wildcard only for /* (bug-1962)

Cause: isExcludedPath (middleware/validatehandler.go) dropped the last
character of every excluded entry and prefix-matched, so /ping excused any
path starting with /pin (e.g. /pinX) from JWT validation, while
/swagger/*any (trimmed to /swagger/*an) never matched.

Fix: entries match exactly; an entry whose last segment is a gin catch-all
(/swagger/*any) matches any path under the part before the "*".

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/frontend/apiserver/middleware/validatehandler.go

@@ -44,23 +44,30 @@ func ValidateHandler() gin.HandlerFunc {
 	}
 }
 
-func isExcludedPath(path string) bool {
+// jwtExcludedPaths are the routes that skip JWT validation. An entry is
+// matched exactly, unless its last segment is a gin catch-all ("*name", as in
+// the route "/swagger/*any"): then any path under the part before the "*"
+// matches (bug-1962).
+var jwtExcludedPaths = []string{
+	"/ping",
+	"/xce/v1/auth/logon",
+	"/swagger/*any",
+	"/xce/v1/auth/logout",
+}
 
-	allowed := false
-	// define some excluded paths
-	excludedPaths := []string{
-		"/ping",
-		"/xce/v1/auth/logon",
-		"/swagger/*any",
-		"/xce/v1/auth/logout",
-	}
-	for _, excludedPath := range excludedPaths {
-		if strings.HasPrefix(path, excludedPath[:len(excludedPath)-1]) { // 去掉最后的 *
-			allowed = true
-			break
+func isExcludedPath(path string) bool {
+	for _, excludedPath := range jwtExcludedPaths {
+		if i := strings.LastIndex(excludedPath, "/*"); i >= 0 {
+			if strings.HasPrefix(path, excludedPath[:i+1]) {
+				return true
+			}
+			continue
+		}
+		if path == excludedPath {
+			return true
 		}
 	}
-	return allowed
+	return false
 }
 
 // Token validation middleware