Feature: Add pre-request and test scripts support

[AkashBhuiyan]

Description

Allow users to write JavaScript scripts that run before a request (pre-request) and after receiving a response (tests), similar to Postman.

Requirements

• Pre-request script editor
• Test script editor
• Built-in variables (request, response, environment)
• Assertion library (expect, assert)
• Console output panel
• Script templates/snippets

Example Usage

// Pre-request script
const timestamp = Date.now();
pm.environment.set("timestamp", timestamp);

// Test script
pm.test("Status is 200", function() {
    pm.response.to.have.status(200);
});

pm.test("Response has user", function() {
    const json = pm.response.json();
    pm.expect(json.user).to.exist;
});

Labels

enhancement, feature, frontend, backend