Initial prototype for AI agent with video creation role.

[GYFX35]

This commit introduces the initial structure for the AI services application. It sets up a new Node.js project with an Express.js web server.

The key features of this initial prototype are:

• A basic Express.js server to handle API requests.
• A defined list of AI agent roles, including a "General Assistant" and the new "Prototype Video Creator".
• An API endpoint at /roles that returns the list of available roles.

This serves as the foundation for the AI agent. The actual video creation functionality for the "Prototype Video Creator" role will be implemented in a future update.

Summary by Sourcery

Initialize Node.js Express application with AI agent roles API

New Features:

• Setup basic Express.js server with root and roles endpoints
• Define AI agent roles list including General Assistant and Prototype Video Creator

[sourcery-ai]

Reviewer's Guide

This PR bootstraps a new Node.js Express application, defines a list of AI agent roles, and exposes them via a /roles API endpoint, laying the groundwork for future video creation functionality.

Sequence diagram for /roles API request and response

sequenceDiagram
    actor User
    participant ExpressApp
    participant Roles
    User->>ExpressApp: GET /roles
    ExpressApp->>Roles: Retrieve roles list
    ExpressApp-->>User: Return roles as JSON

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Entity relationship diagram for AI agent roles data structure

erDiagram
    ROLES {
        id int
        name string
        description string
    }

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Class diagram for initial Express server and roles structure

classDiagram
    class ExpressApp {
        +get(path, handler)
        +listen(port, callback)
    }
    class Roles {
        +id: number
        +name: string
        +description: string
    }
    ExpressApp --> "*" Roles : exposes via /roles endpoint

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File-Level Changes

Change	Details	Files
Initialize Node.js project structure	Add package.json with project metadata and Express dependency Include package-lock.json for dependency lock Create .gitignore for untracked files	package.json package-lock.json .gitignore
Set up Express server and routing	Instantiate Express app and configure default port Implement GET / returning a welcome message Implement GET /roles to return available roles in JSON Start server and log listening port	src/index.js
Define AI agent roles	Create roles array with General Assistant and Prototype Video Creator entries Export roles module for use in server routes	src/roles.js

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[sourcery-ai]

Hey there - I've reviewed your changes - here's some feedback:

Blocking issues:

• A CSRF middleware was not detected in your express application. Ensure you are either using one such as csurf or csrf (see rule references) and/or you are properly doing CSRF validation in your routes with a token or cookies. (link)

General comments:

• Consider organizing route handlers into separate router modules to keep index.js focused and maintainable as more endpoints are added.
• Add a configuration management approach (e.g., dotenv) for environment variables instead of relying on hardcoded defaults.
• Include a global error‐handling middleware to ensure the API returns consistent error responses.

Prompt for AI Agents

Please address the comments from this code review:
## Overall Comments
- Consider organizing route handlers into separate router modules to keep index.js focused and maintainable as more endpoints are added.
- Add a configuration management approach (e.g., dotenv) for environment variables instead of relying on hardcoded defaults.
- Include a global error‐handling middleware to ensure the API returns consistent error responses.

## Individual Comments

### Comment 1
<location> `src/index.js:15` </location>
<code_context>
+  res.json(roles);
+});
+
+app.listen(port, () => {
+  console.log(`Server is running on port ${port}`);
+});
</code_context>

<issue_to_address>
Consider handling server startup errors in app.listen.

Currently, errors like port conflicts during startup are not logged. Adding an error callback to app.listen will allow you to catch and report these issues.
</issue_to_address>

## Security Issues

### Issue 1
<location> `src/index.js:2` </location>

<issue_to_address>
**security (javascript.express.security.audit.express-check-csurf-middleware-usage):** A CSRF middleware was not detected in your express application. Ensure you are either using one such as `csurf` or `csrf` (see rule references) and/or you are properly doing CSRF validation in your routes with a token or cookies.

*Source: opengrep*
</issue_to_address>

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[sourcery-ai]

suggestion (bug_risk): Consider handling server startup errors in app.listen.

Currently, errors like port conflicts during startup are not logged. Adding an error callback to app.listen will allow you to catch and report these issues.

[sourcery-ai]

security (javascript.express.security.audit.express-check-csurf-middleware-usage): A CSRF middleware was not detected in your express application. Ensure you are either using one such as csurf or csrf (see rule references) and/or you are properly doing CSRF validation in your routes with a token or cookies.

Source: opengrep