Explanation
A valid way of referencing the CC Cart Object whose API name is E_Cart__c in a SOQL query is to use ccrz__E_Cart__c. This is the transformed name of the object that is used by the Salesforce B2B Commerce framework. All custom objects and fields that are part of the cloudcraze managed package have the prefix ccrz__ in their API names. For example, SELECT Id, Name FROM ccrz__E_Cart__c will query the CC Cart Object records. Salesforce References: B2B Commerce and D2C Commerce Developer Guide, Query Transformation

Explanation
The static method invocation that is used to initialize ccrz.cc_CallContext with information from ccrz.cc_RemoteActionContext and return an instance of ccrz.cc_RemoteActionResult in an Apex
@RemoteAction method is ccrz.cc_CallContext.initCallContext(ccrz.cc_RemoteActionContext). This method takes in a ccrz.cc_RemoteActionContext object as a parameter and returns a ccrz.cc_RemoteActionResult object. The ccrz.cc_RemoteActionContext object contains information about the current storefront, user, cart, price list, currency, locale, and session. The ccrz.cc_RemoteActionResult object contains information about the status, result, and errors of the remote action. The other methods are not valid or do not exist. Salesforce References: B2B Commerce Developer Guide: cc_CallContext Class, B2B Commerce Developer Guide:
cc_RemoteActionContext Class, B2B Commerce Developer Guide: cc_RemoteActionResult Class

Explanation
The out of the box Salesforce B2B Commerce page that can give instructions to web crawlers from accessing specific Salesforce B2B Commerce pages is cc_RobotsTxt. This is a Visualforce page that generates a robots.txt file, which is a text file that tells web crawlers which pages or files they can or can't request from a site. The page uses the configuration settings CO.RobotsTxtAllow and CO.RobotsTxtDisallow to specify which paths are allowed or disallowed for web crawlers. For example, User-agent: * Disallow: /CCCart will instruct web crawlers to not access the CCCart page. Salesforce References: B2B Commerce and D2C Commerce Developer Guide, Robots.txt File

The templating, JavaScript, and CSS frameworks that the cloudcraze managed package leverages are Bootstrap, Backbone.js, and Handlebars.js. Bootstrap is a CSS framework that provides responsive design and layout components. Backbone.js is a JavaScript framework that provides models, views, collections, and events for building single-page applications. Handlebars.js is a templating engine that allows generating HTML from JSON data. Salesforce Reference: B2B Commerce and D2C Commerce Developer Guide, Front-End Development