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/roles.ts

@@ -62,12 +62,16 @@ export default async function rolesRoutes(
       });
 
       if (Array.isArray(body.permission_ids)) {
-        await prisma.role_permissions.createMany({
-          data: (body.permission_ids as number[]).map((pid) => ({
-            role_id: role.id,
-            permission_id: pid,
-          })),
-        });
+        await prisma.$transaction(
+          (body.permission_ids as number[]).map((pid) =>
+            prisma.role_permissions.create({
+              data: {
+                role_id: role.id,
+                permission_id: pid,
+              },
+            }),
+          ),
+        );
       }
 
       await logAudit({