refactor prices schema, add missing shared files

shared/models/item-price.d.ts

@@ -0,0 +1,14 @@
+export type PriceCondition = 'new' | 'used';
+
+export interface ItemPrice {
+  id: string;
+  itemId: string;
+  condition: PriceCondition;
+  amount: number;
+  currency: string;
+  sourceUrlId: string | null;
+  sourceUrl: string | null;
+  note: string | null;
+  createdAt: string;
+  updatedAt: string;
+}

shared/models/item.d.ts

@@ -0,0 +1,32 @@
+export type ItemStatus = 'active' | 'rejected';
+
+export interface ItemPriceSummary {
+  minAmount: number;
+  maxAmount: number;
+  currency: string | null;
+  priceCount: number;
+  hasMixedCurrency: boolean;
+  newMinAmount: number | null;
+  newCount: number;
+  newCurrency: string | null;
+  newHasMixedCurrency: boolean;
+  usedMinAmount: number | null;
+  usedCount: number;
+  usedCurrency: string | null;
+  usedHasMixedCurrency: boolean;
+}
+
+export interface Item {
+  id: string;
+  projectId: string;
+  manufacturer: string | null;
+  model: string;
+  sourceUrlId: string | null;
+  sourceUrl: string | null;
+  status: ItemStatus;
+  note: string | null;
+  attributes: Record<string, unknown>;
+  createdAt: string;
+  updatedAt: string;
+  priceSummary: ItemPriceSummary | null;
+}

shared/models/pagination.d.ts

@@ -0,0 +1,10 @@
+export interface PaginationMeta {
+  limit: number;
+  offset: number;
+  count: number;
+}
+
+export interface PaginatedResponse<T> {
+  data: T[];
+  meta: PaginationMeta;
+}

shared/models/project.d.ts

@@ -0,0 +1,12 @@
+export type ProjectStatus = 'active' | 'archived';
+
+export interface Project {
+  id: string;
+  name: string;
+  description: string | null;
+  status: ProjectStatus;
+  attributes: string[];
+  priorityRules: unknown;
+  createdAt: string;
+  updatedAt: string;
+}