fix date sorting in proof search

src/pages/Proof/Search_GLD/DataGrid.js

@@ -74,16 +74,53 @@ export default function SearchPublicNoticeTable({searchCriteria, applyGridOnRead
 
             valueGetter: (params) => {
                 const v = params?.value;
-                if (!Array.isArray(v) || v.length < 3) return null;
+                if (v == null) return null;
 
-                const year = v[0];
-                const month = v[1];   // 1-12
-                const day = v[2];
-                const hour = v[3] ?? 0;
-                const minute = v[4] ?? 0;
-                const second = v[5] ?? 0;
+                // 1) Number => epoch timestamp (ms or seconds)
+                if (typeof v === "number") {
+                    if (!Number.isFinite(v)) return null;
 
-                return new Date(year, month - 1, day, hour, minute, second);
+                    // Heuristic: if it's too small, it's probably seconds
+                    // (ms in 2026 is ~1.7e12, seconds is ~1.7e9)
+                    const ms = v < 1e11 ? v * 1000 : v;
+
+                    const d = new Date(ms);
+                    return Number.isNaN(d.getTime()) ? null : d;
+                }
+
+                // 2) Array => [Y, M, D, h, m, s]
+                if (Array.isArray(v)) {
+                    if (v.length < 3) return null;
+
+                    const year = Number(v[0]);
+                    const month = Number(v[1]); // expecting 1-12
+                    const day = Number(v[2]);
+                    const hour = Number(v[3] ?? 0);
+                    const minute = Number(v[4] ?? 0);
+                    const second = Number(v[5] ?? 0);
+
+                    if (![year, month, day, hour, minute, second].every(Number.isFinite)) return null;
+                    if (month < 1 || month > 12) return null;
+
+                    const d = new Date(year, month - 1, day, hour, minute, second);
+
+                    // Guard against JS "auto-fixing" invalid dates (e.g., Feb 31 -> Mar 2)
+                    if (
+                    d.getFullYear() !== year ||
+                    d.getMonth() !== month - 1 ||
+                    d.getDate() !== day
+                    ) return null;
+
+                    return d;
+                }
+
+                // 3) Optional: ISO string support (if it ever appears)
+                if (typeof v === "string") {
+                    const d = new Date(v);
+                    return Number.isNaN(d.getTime()) ? null : d;
+                }
+
+                return null;
             },
 
             valueFormatter: (params) => {