feat(jetbrains): add plugin pre-installation support

[Harsh9485]

Description

Adds a jetbrains_plugins parameter to the JetBrains module.
This parameter accepts a map of JetBrains Marketplace plugin IDs and installs them automatically when the workspace starts.

/claim #208

Approach

1. Uses the JetBrains Marketplace API to download plugins:https: <plugins.jetbrains.com/pluginManager?action=download&id=<pluginId>&build=<productCode>-<buildNumber>

2. Stores IDE metadata (name and build number) in ide_config.json, generated during Terraform apply.
   The build number is used to construct the correct Marketplace download URL for each IDE.

3. Plugin installation runs asynchronously using nohup, so the workspace becomes ready immediately.
   The IDE installation is not blocked, and users can start using the workspace while plugins are being installed in the background.

Changes

• Adds jetbrains_plugins variable of type map(list(string))
  Example:
  { "PY" = [ "com.koxudaxi.pydantic", "com.intellij.kubernetes" ] }
  Allows installing different plugins per IDE.

• scripts/install_plugins.sh:
  Downloads plugins using the Marketplace API
  Detects whether the plugin is a ZIP or JAR
  Installs it into the correct IDE plugin directory

videos

1 video setup:- https://drive.google.com/file/d/1WB5jRkCOM0w4rEUY-za_3hEvo116UCGd/view?usp=sharing

2 video proof:- https://drive.google.com/file/d/1ZeGUJPJ-gSGNvNzwq8_V-cozz2NqveUT/view?usp=sharing

Type of Change

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

Module Information

Path: registry/coder/modules/jetbrain
New version: v1.0.0
Breaking change: [ ] Yes [ ] No

Testing & Validation

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

[Harsh9485]

@DevelopmentCats @matifali, PR is ready for review.

[DevelopmentCats]

I am testing this and will let you know how it goes with a review

[DevelopmentCats]

After some testing it seems to work well. I tested with various different plugins and different IDE's in the toolbox and it is working great. I will look this over and make sure everything looks good with the module code, and I think we will be good to go.

[Harsh9485]

Hey @DevelopmentCats @matifali, can we finish it today?