fix(erp): enable erp pages and menu items

backend/internal/data/postgres/migrations/025_create_erp_tables.sql

@@ -0,0 +1,93 @@
+-- Migration: 025_create_erp_tables.sql
+-- Description: Create tables for Finance, Inventory, and Order management
+
+-- Financial Categories
+CREATE TABLE IF NOT EXISTS erp_financial_categories (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
+    name VARCHAR(255) NOT NULL,
+    type VARCHAR(20) NOT NULL CHECK (type IN ('income', 'expense')),
+    color VARCHAR(20),
+    is_active BOOLEAN DEFAULT true,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Bank Accounts
+CREATE TABLE IF NOT EXISTS erp_bank_accounts (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
+    name VARCHAR(255) NOT NULL,
+    bank_name VARCHAR(255),
+    initial_balance DECIMAL(15,2) DEFAULT 0.00,
+    current_balance DECIMAL(15,2) DEFAULT 0.00,
+    is_active BOOLEAN DEFAULT true,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Financial Transactions
+CREATE TABLE IF NOT EXISTS erp_financial_transactions (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
+    account_id UUID REFERENCES erp_bank_accounts(id),
+    category_id UUID REFERENCES erp_financial_categories(id),
+    description TEXT,
+    amount DECIMAL(15,2) NOT NULL,
+    type VARCHAR(20) NOT NULL CHECK (type IN ('income', 'expense')),
+    status VARCHAR(20) NOT NULL DEFAULT 'pending' CHECK (status IN ('pending', 'paid', 'cancelled')),
+    due_date DATE,
+    payment_date TIMESTAMP WITH TIME ZONE,
+    attachments TEXT[], -- URLs for proofs
+    created_by UUID REFERENCES users(id),
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Products & Services
+CREATE TABLE IF NOT EXISTS erp_products (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
+    name VARCHAR(255) NOT NULL,
+    sku VARCHAR(100),
+    description TEXT,
+    price DECIMAL(15,2) NOT NULL,
+    cost_price DECIMAL(15,2),
+    type VARCHAR(20) DEFAULT 'product' CHECK (type IN ('product', 'service')),
+    stock_quantity INT DEFAULT 0,
+    is_active BOOLEAN DEFAULT true,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Orders
+CREATE TABLE IF NOT EXISTS erp_orders (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
+    customer_id UUID REFERENCES companies(id), -- Linked to CRM (companies)
+    status VARCHAR(20) NOT NULL DEFAULT 'draft' CHECK (status IN ('draft', 'confirmed', 'completed', 'cancelled')),
+    total_amount DECIMAL(15,2) DEFAULT 0.00,
+    notes TEXT,
+    created_by UUID REFERENCES users(id),
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Order Items
+CREATE TABLE IF NOT EXISTS erp_order_items (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    order_id UUID NOT NULL REFERENCES erp_orders(id) ON DELETE CASCADE,
+    product_id UUID NOT NULL REFERENCES erp_products(id),
+    quantity INT NOT NULL DEFAULT 1,
+    unit_price DECIMAL(15,2) NOT NULL,
+    total_price DECIMAL(15,2) NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Indexes for performance and multi-tenancy
+CREATE INDEX idx_erp_fin_cat_tenant ON erp_financial_categories(tenant_id);
+CREATE INDEX idx_erp_bank_acc_tenant ON erp_bank_accounts(tenant_id);
+CREATE INDEX idx_erp_fin_trans_tenant ON erp_financial_transactions(tenant_id);
+CREATE INDEX idx_erp_products_tenant ON erp_products(tenant_id);
+CREATE INDEX idx_erp_orders_tenant ON erp_orders(tenant_id);
+CREATE INDEX idx_erp_order_items_order ON erp_order_items(order_id);