add: rstudio module

[mtojek]

Description

This PR brings RStudio Server module. Since full RStudio distribution is hard to install in a consistent, stable way (lib versions, deps, etc.), this module bases on Docker distribution - Rocker.

Type of Change

• New module
• Bug fix
• Feature/enhancement
• Documentation
• Other

Module Information

Path: registry/coder/modules/rstudio
New version: v0.9.0
Breaking change: [ ] Yes [ ] No

Testing & Validation

module "rstudio-server" {
  count    = data.coder_workspace.me.start_count
  source   = "git::https://github.com/coder/registry.git//registry/coder/modules/rstudio-server?ref=rstudio-module"

  agent_id = coder_agent.main.id
  docker_socket = var.docker_socket

  #disable_auth = false
  project_path = "/home/coder"
  enable_renv = true
}

• Tests pass (bun test)
• Code formatted (bun run fmt)
• Changes tested locally

[Copilot]

Pull Request Overview

This PR introduces a new RStudio Server module for Coder that deploys RStudio Server using the Rocker Project Docker distribution. The module provides a consistent and stable way to run RStudio Server in Coder workspaces, handling authentication, project mounting, and R environment management with renv support.

• Adds Docker-based RStudio Server deployment with configurable authentication and project paths
• Implements renv cache volume for dependency persistence and automatic environment restoration
• Provides comprehensive Terraform configuration with variables for customization and Coder app integration

Reviewed Changes

Copilot reviewed 3 out of 5 changed files in this pull request and generated 5 comments.

File	Description
registry/coder/modules/rstudio-server/main.tf	Terraform configuration defining variables, script execution, and Coder app setup
registry/coder/modules/rstudio-server/run.sh	Shell script that manages Docker operations, container lifecycle, and renv restoration
registry/coder/modules/rstudio-server/README.md	Documentation with module description and basic usage example

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[mtojek]

Hi @DevelopmentCats @matifali! Could you take a look at this PR whenever you've free cycles?

[matifali]

A few suggestions but look good to me.