ticket: site metadata header + scannable Albanian ticket; widen barcode

- site_config gains optional park identity (park_name, operator_name, nius,
  address, phone, email); additive Drizzle migration 0001. GET/PUT
  /api/site-config read/write the full config (PUT partial patch, admin only);
  SiteSettings + SetupWizard expose the fields.
- renderTicket() prints an Albanian header sourced from site_config, the
  all-numeric 13-digit ticket id (12 random + Luhn) as Code128, large digits,
  and a lost-ticket footer. CP852 codepage so ë/ç render.
- Widen the Code128 module width 2->3 and height 80->100 dots so the
  short-range "Simple" QR/barcode reader decodes reliably (was barely reading
  at module width 2 on the 80mm head).

See wiki/concepts/site-metadata.md and ticket-encoding.md.

packages/db/src/schema.ts

@@ -131,9 +131,26 @@ export const setupState = sqliteTable("setup_state", {
 // Single-row site settings (admin-configurable). The home for site-wide knobs;
 // `capacity` is the nominal space count the FULL gate refuses transient entry at
 // (null = no cap). See wiki/concepts/capacity-occupancy.md.
+// Park identity/metadata (all optional) lives here too — display name, the legal
+// operator, the NIUS tax id, address and contact. These feed the ticket/receipt
+// header (park name + NIUS are commonly required on an Albanian parking receipt)
+// and admin display. All nullable: the lot runs fine with none set.
+// See wiki/concepts/site-metadata.md.
 export const siteConfig = sqliteTable("site_config", {
   id: integer("id").primaryKey(), // always 1
   capacity: integer("capacity"), // null = no capacity limit
+  /** Park display name shown on the ticket header / UI (e.g. "Acme Parking"). */
+  parkName: text("park_name"),
+  /** Legal entity operating the lot, for receipts (may differ from parkName). */
+  operatorName: text("operator_name"),
+  /** NIUS — Albanian tax/identification number, printed on the receipt when set. */
+  nius: text("nius"),
+  /** Free-text postal address (multi-line allowed). */
+  address: text("address"),
+  /** Contact phone — also used for the ticket "lost ticket? call …" footer. */
+  phone: text("phone"),
+  /** Contact email. */
+  email: text("email"),
   updatedAt: text("updated_at")
     .notNull()
     .default(sql`(current_timestamp)`),