전체 코드, 구조 검토 - P0 코드 수정 진행

lib/db.ts

@@ -58,6 +58,12 @@ function onQuery(e: Prisma.QueryEvent): void {
 
 const COL_MAX_WIDTH = 40;
 
+const SENSITIVE_KEYS = new Set(["Password", "password"]);
+
+function safeValue(key: string, value: unknown): string {
+  return SENSITIVE_KEYS.has(key) ? "***" : formatValue(value);
+}
+
 function formatValue(v: unknown): string {
   if (v === null || v === undefined) return "NULL";
   if (typeof v === "bigint") return v.toString();
@@ -165,7 +171,7 @@ function buildResultLog(
     if (typeof preview[0] === "object" && preview[0] !== null) {
       const objRows = preview as Record<string, unknown>[];
       const headers = Object.keys(objRows[0]);
-      const rows = objRows.map((row) => headers.map((h) => formatValue(row[h])));
+      const rows = objRows.map((row) => headers.map((h) => safeValue(h, row[h])));
       return `${label} → ${countLabel}\n${renderTable(headers, rows)}${moreLabel}`;
     }
 
@@ -176,7 +182,7 @@ function buildResultLog(
   if (result !== null && typeof result === "object") {
     const rows = Object.entries(result as Record<string, unknown>).map(([k, v]) => [
       k,
-      formatValue(v),
+      safeValue(k, v),
     ]);
     return `${label}\n${renderTable(["field", "value"], rows)}`;
   }