feat(quotes): add is_no_quote?: boolean to Quote interface

Mirrors the is_template boolean. Wires the new field through the
type system before any service-layer code touches it.

src/lib/types.ts

@@ -245,6 +245,13 @@ export interface Quote extends BaseRecord {
   validity_days: number | null;
   /** True for templates — reusable scaffolding, not a real customer quote. */
   is_template: boolean;
+  /**
+   * True for "no-quote" pricing records — formal pricing the operator
+   * sent out (e.g. for a customer delivery note) that isn't a real
+   * sales quote. Distinct from `is_template` (reusable scaffolding).
+   * Optional: existing rows pre-date this column.
+   */
+  is_no_quote?: boolean;
   /** If this template was cloned from a real quote, the source quote id. */
   template_source_id: string;
   /** If this quote was generated from a template, the template quote id. */