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/schemas/attendance.schema.ts

@@ -55,7 +55,10 @@ export const AttendanceLeaveSchema = z.object({
     .optional(),
   date_from: z.string().min(1, "Datum je povinné"),
   date_to: z.string().optional(),
-  leave_type: z.string().optional().default("vacation"),
+  leave_type: z
+    .enum(["vacation", "sick", "unpaid", "holiday"])
+    .optional()
+    .default("vacation"),
   leave_hours: z
     .union([z.number(), z.string()])
     .transform((v) => Number(v))
@@ -65,16 +68,8 @@ export const AttendanceLeaveSchema = z.object({
 
 const ProjectLogSchema = z.object({
   project_id: z.union([z.number(), z.string()]).transform((v) => Number(v)),
-  hours: z
-    .union([z.number(), z.string()])
-    .transform((v) => Number(v) || 0)
-    .optional()
-    .default(0),
-  minutes: z
-    .union([z.number(), z.string()])
-    .transform((v) => Number(v) || 0)
-    .optional()
-    .default(0),
+  hours: z.coerce.number().min(0).default(0),
+  minutes: z.coerce.number().min(0).default(0),
 });
 
 export const AttendancePunchSchema = z.object({
@@ -124,7 +119,10 @@ export const CreateAttendanceSchema = z.object({
     .union([z.number(), z.string()])
     .transform((v) => Number(v))
     .nullish(),
-  leave_type: z.string().optional().default("work"),
+  leave_type: z
+    .enum(["work", "vacation", "sick", "holiday", "unpaid"])
+    .optional()
+    .default("work"),
   leave_hours: z
     .union([z.number(), z.string()])
     .transform((v) => Number(v))
@@ -138,8 +136,13 @@ export const UpdateAttendanceSchema = z.object({
   break_start: z.union([z.string(), z.null()]).optional(),
   break_end: z.union([z.string(), z.null()]).optional(),
   notes: z.string().nullish(),
-  project_id: z.union([z.number(), z.string(), z.null()]).optional(),
-  leave_type: z.string().optional(),
+  project_id: z
+    .union([z.number(), z.string(), z.null()])
+    .transform((v) => (v === null ? null : Number(v)))
+    .optional(),
+  leave_type: z
+    .enum(["work", "vacation", "sick", "holiday", "unpaid"])
+    .optional(),
   leave_hours: z.union([z.number(), z.string(), z.null()]).optional(),
   project_logs: z.array(ProjectLogSchema).optional(),
 });