feat: add material trace page for bidirectional LOT/material query

Implement full-stack material trace feature enabling forward (LOT/工單 → 原物料)
and reverse (原物料 → LOT) queries with wildcard support, safeguards (memory guard,
IN-clause batching, Oracle slow-query channel), CSV export, and portal-shell integration.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

data/page_status.json

@@ -99,6 +99,13 @@
       "drawer_id": "drawer",
       "order": 3
     },
+    {
+      "route": "/material-trace",
+      "name": "原物料追溯查詢",
+      "status": "released",
+      "drawer_id": "drawer",
+      "order": 4
+    },
     {
       "route": "/admin/pages",
       "name": "頁面管理",