feat: Add password reset functionality with request and reset forms

feat: Implement price list import feature with preview and apply options

feat: Create price rules management page with CRUD operations

feat: Develop quotes management page with itemized quotes and status tracking

feat: Introduce organization registration page for new users

feat: Build suppliers management page with detailed supplier information

feat: Create users management page for inviting and managing roles

chore: Add TypeScript configuration for improved type checking

chore: Set up Vite configuration for development server and API proxy

chore: Add Vite environment type definitions for better TypeScript support

backend/company-migrations/0004_item_price_history.sql

@@ -0,0 +1,22 @@
+-- Template migration for each organization schema.
+-- Replace {schema} with the real schema name, e.g. company_<organization_id>.
+
+create table if not exists {schema}.item_price_history (
+    id uuid primary key,
+    item_id uuid not null references {schema}.items(id) on delete cascade,
+    purchase_price numeric(14, 4),
+    sales_price numeric(14, 4),
+    source text not null default 'manual',
+    valid_from timestamptz not null default now(),
+    created_by_user_id uuid,
+    created_at timestamptz not null default now(),
+    constraint item_price_history_purchase_price_non_negative check (
+        purchase_price is null or purchase_price >= 0
+    ),
+    constraint item_price_history_sales_price_non_negative check (
+        sales_price is null or sales_price >= 0
+    )
+);
+
+create index if not exists idx_item_price_history_item_valid_from
+    on {schema}.item_price_history (item_id, valid_from desc);