stock cypress testing

frontend/cypress/e2e/stock.cy.js

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+describe('Admin Stock - Add New Item', () => {
+
+  it('can open Add Item modal, fill form, and click Create', () => {
+
+    // ---- LOGIN ----
+    cy.visit('/login');
+
+    cy.get('#username').type('apartment_admin');
+    cy.get('#password').type('Admin@2024!Secure');
+
+    cy.intercept('POST', '**/api/auth/login').as('login');
+    cy.intercept('GET', '**/api/auth/me').as('me');
+
+    cy.get('button[type="submit"]').click();
+
+    cy.wait('@login');
+    cy.wait('@me');
+
+    // ---- OPEN SIDEBAR ----
+    cy.get('button')
+      .filter((i, el) => el.innerHTML.includes('svg'))
+      .first()
+      .click({ force: true });
+
+    // ---- GO TO STOCK PAGE ----
+    cy.contains('Stock')
+      .scrollIntoView()
+      .click({ force: true });
+
+    cy.url().should('include', '/stock');
+    cy.wait(800);
+
+    // ---- MOCK API CREATE ----
+    cy.intercept('POST', '**/api/maintenance/stocks', {
+      statusCode: 201,
+      body: { message: 'created' }
+    }).as('createStock');
+
+    // ---- OPEN ADD ITEM MODAL ----
+    cy.contains('Add Item')
+      .should('be.visible')
+      .click({ force: true });
+
+    cy.contains('Add New Item').should('be.visible');
+
+    // ---- FILL FORM ----
+
+    cy.get('input[placeholder="e.g., PVC Pipe 1/2 inch"]')
+      .type('Test Item 01');
+
+    cy.contains('label', 'Category')
+      .parent()
+      .find('select')
+      .select('PLUMBING', { force: true });
+
+    cy.contains('label', 'Unit')
+      .parent()
+      .find('input')
+      .clear()
+      .type('pieces');
+
+    cy.contains('label', 'Quantity')
+      .parent()
+      .find('input')
+      .clear()
+      .type('10');
+
+    cy.contains('label', 'Unit Price')
+      .parent()
+      .find('input')
+      .clear()
+      .type('150');
+
+    cy.get('textarea[placeholder="Additional details..."]')
+      .type('This is a Cypress test item.');
+
+    // ---- CLICK CREATE ----
+    cy.contains('Create')
+      .should('be.visible')
+      .click({ force: true });
+
+    // ---- WAIT FOR MOCK API ----
+    cy.wait('@createStock');
+
+    // ---- ASSERT MODAL CLOSED ----
+    cy.contains('Add New Item').should('not.exist');
+
+  });
+
+});