Add Dummy Data Generator plugin with API routes for OJS

[munir-abbasi]

This PR adds the Dummy Data Generator plugin, a generic plugin for Open Journal Systems 3.5+.
The plugin extends the OJS API by adding custom routes under the /api/v1/users endpoint to generate dummy users, submissions, and issues for development and testing environments.

Plugin Details

• Name: Dummy Data Generator
• Category: generic
• Product: ojs
• Repository: https://github.com/munir-abbasi/dummyDataGenerator
• Release Version: 1.0.0
• Compatibility: OJS 3.5.x

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Overview

This plugin provides a controlled way to generate test data directly through the OJS API.
It adds plugin-defined endpoints for:

• generating users with Author role
• generating submissions with metadata and files
• simulating workflow progression via programmatic editorial decisions
• creating and publishing issues
• cleaning up generated data safely
  All routes extend the existing OJS users API handler and inherit authentication and authorization from the OJS API layer.

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API Endpoints

POST   /api/v1/users/generate-users
POST   /api/v1/users/generate-submissions
POST   /api/v1/users/generate-issue
DELETE /api/v1/users/cleanup

These endpoints are implemented by the plugin and are not part of the core OJS API.

Installation & Testing

• Plugin installs under plugins/generic/dummyDataGenerator
• Verified on OJS 3.5.x
• Plugin loads and registers routes successfully
• Endpoints return JSON responses as expected
• Role-based access enforced (Manager/Admin only)

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Notes

• Intended for development and testing environments
• Workflow progression is simulated via internal decision APIs
• Cleanup operation deletes only plugin-generated data within the current context
• Package URL and MD5 checksum have been verified

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Checklist

• Clean release package (no dev artifacts)
• version.xml matches release
• GitHub release created (v1.0.0)
• MD5 checksum matches package
• Documentation included (README, API docs, installation)

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Package

Release archive:
dummyDataGenerator-v1.0.0.tar.gz