fix: security, validation, and data integrity fixes across 53 files

- Auth: HS256 algorithm restriction on JWT verify, timing-safe bcrypt
  for inactive/locked users, locked_until check in loadAuthData, TOTP
  fixes (async bcrypt, BigInt conversion, future-code counter fix)
- Validation: Zod enums for leave_type/status, numeric transforms on
  foreign keys, VAT 0% coercion fix (Number(v)||21 → v!=null checks)
- Permissions: requirePermission on attendance PUT, attendance_users
  and project_logs access checks, trips users filtered by trips.record
- Prisma queries: fixed roles.is:{OR} pattern (doesn't work on to-one
  relations), attendance_users now filters by attendance.record only
- Transactions: wrapped deleteOrder, createOrder, updateUser, deleteUser,
  duplicateOffer, bulkCreateAttendance, createLeave, scope-templates,
  leave-requests, company-settings, profile updates
- Frontend: mountedRef reset in useListData, blob URL cleanup on unmount,
  null checks on date fields, AdminDatePicker min/max for HH:mm
- Security headers: COOP, CORP, CSP frame-ancestors/form-action/base-uri
- Other: exchange-rate cache TTL, invoice-alert midnight comparison fix,
  numbering.service releaseSequence no-op, nas-offers filename sanitize,
  Content-Disposition header injection fix, mojibake Czech strings

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/routes/admin/dashboard.ts

@@ -180,9 +180,9 @@ export default async function dashboardRoutes(
     // Invoices — only for invoices.view
     if (has("invoices.view")) {
       // $queryRaw template literal interpolation with Date objects fails on
-      // MySQL when Date.toJSON is overridden — pass strings instead.
-      const monthStartStr = monthStart.toJSON();
-      const monthEndStr = monthEnd.toJSON();
+      // MySQL when Date.toJSON is overridden — pass explicit date strings instead.
+      const monthStartStr = `${monthStart.getFullYear()}-${String(monthStart.getMonth() + 1).padStart(2, "0")}-01`;
+      const monthEndStr = `${monthEnd.getFullYear()}-${String(monthEnd.getMonth() + 1).padStart(2, "0")}-01`;
 
       const [unpaidCount, revenueAgg] = await Promise.all([
         prisma.invoices.count({ where: { status: "issued" } }),