fix(erp): enable erp pages and menu items

backend/internal/data/postgres/migrations/029_create_documents_table.sql

@@ -0,0 +1,15 @@
+-- Migration: 029_create_documents_table.sql
+-- Description: Create table for text documents (Google Docs style)
+
+CREATE TABLE IF NOT EXISTS documents (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
+    title VARCHAR(255) NOT NULL,
+    content TEXT,
+    status VARCHAR(50) DEFAULT 'draft',
+    created_by UUID REFERENCES users(id),
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX IF NOT EXISTS idx_documents_tenant_id ON documents(tenant_id);