Merge remote-tracking branch 'origin/master'

“mitao”

2026-01-22 7d1feae71bfd79b9021e516916b79f918bfcbcd9

 ruoyi-system/src/main/java/com/ruoyi/system/service/ProjectCategoryCalculator.java

@@ -501,7 +501,7 @@
        } else if (finalScore >= thresholdA) {
            return "C";
        } else {
            return null; // 不满足任何类别
            return "C"; // 不满足任何类别
        }
    }