Add [copyparty] module (#486)

## Description

This PR adds a module to install Copyparty as an alternative to
Filebrowser.

## Type of Change

- [x] New module
- [ ] New template
- [ ] Bug fix
- [ ] Feature/enhancement
- [ ] Documentation
- [ ] Other

## Module Information

<!-- Delete this section if not applicable -->

**Path:** `registry/djarbz/modules/copyparty`  
**New version:** `v0.1.0`  
**Breaking change:** [ ] Yes [x] No

## Testing & Validation

- [N/A] Tests pass (`bun test`)
- [x] Code formatted (`bun fmt`)
- [x] Changes tested locally

## Related Issues

<!-- Link related issues or write "None" if not applicable -->
None

---------

Co-authored-by: DevCats <[email protected]>

Author: djarbz

.icons/copyparty.svg

@@ -0,0 +1,11 @@
+---
+display_name: "Austin"
+bio: "IT Pro by day, script kiddie at night."
+avatar: "./.images/avatar.png"
+github: "djarbz"
+status: "community"
+---
+
+# Austin
+
+I like to program as a hobby.

registry/djarbz/.images/avatar.png

@@ -0,0 +1,68 @@
+---
+display_name: copyparty
+description: A web based file explorer alternative to Filebrowser.
+icon: ../../../../.icons/copyparty.svg
+verified: false
+tags: [files, filebrowser, web, copyparty]
+---
+
+# copyparty
+
+<!-- Describes what this module does -->
+
+This module installs Copyparty, an alternative to Filebrowser.
+[Copyparty](https://github.com/9001/copyparty) is a portable file server with accelerated resumable uploads, dedup, WebDAV, FTP, TFTP, zeroconf, media indexer, thumbnails++ all in one file, no deps
+
+```tf
+module "copyparty" {
+  count   = data.coder_workspace.me.start_count
+  source  = "registry.coder.com/djarbz/copyparty/coder"
+  version = "1.0.0"
+}
+```
+
+<!-- Add a screencast or screenshot here  put them in .images directory -->
+
+![copyparty-browser-fs8](../../.images/copyparty_screenshot.png)
+
+## Examples
+
+### Example 1
+
+Some basic command line options:
+
+```tf
+module "copyparty" {
+  count    = data.coder_workspace.me.start_count
+  source   = "registry.coder.com/djarbz/copyparty/coder"
+  version  = "1.0.0"
+  agent_id = coder_agent.example.id
+  arguments = [
+    "-v", "/home/coder/:/home:r",       # Share home directory (read-only)
+    "-v", "${local.repo_dir}:/repo:rw", # Share project directory (read-write)
+    "-e2dsa",                           # Enables general file indexing"
+  ]
+}
+```
+
+### Example 2
+
+```tf
+module "copyparty" {
+  count     = data.coder_workspace.me.start_count
+  source    = "registry.coder.com/djarbz/copyparty/coder"
+  version   = "1.0.0"
+  agent_id  = coder_agent.example.id
+  subdomain = true
+  arguments = [
+    "-v", "/tmp:/tmp:r",                         # Share tmp directory (read-only)
+    "-v", "/home/coder/:/home:rw",               # Share home directory (read-write)
+    "-v", "${local.root_dir}:/work:A:c,dotsrch", # Share work directory (All Perms)
+    "-e2dsa",                                    # Enables general file indexing"
+    "--re-maxage", "900",                        # Rescan filesystem for changes every SEC
+    "--see-dots",                                # Show dotfiles by default if user has correct permissions on volume
+    "--xff-src=lan",                             # List of trusted reverse-proxy CIDRs (comma-separated) or `lan` for private IPs.
+    "--rproxy", "1",                             # Which ip to associate clients with, index of X-FWD IP.
+  ]
+}
+```