Add ElvUI addon management functions

[MariusStorhaug]

The ElvUI module manages the ElvUI addon for World of Warcraft — installing and updating the addon via the Tukui API.

Request

Desired capability

The module provides two commands:

• Install-ElvUI — Downloads and installs ElvUI to the WoW AddOns folder. Supports targeting a specific WoW installation path and game flavor (_retail_, _classic_, _classic_era_).
• Update-ElvUI — Checks the installed version against the latest available version from the Tukui API, and updates if a newer version is available. Supports -Force to reinstall even when already up to date. Handles fresh installs if ElvUI is not yet present.

The public API surface uses the ElvUI noun exclusively. All Tukui-level functions
that interact with the Tukui API or perform generic addon operations are internal implementation details and
remain private.

Acceptance criteria

• Public and private functions are placed in the correct src/functions/public/ and src/functions/private/ directories
• Each function lives in its own .ps1 file following the module's convention
• The module exports only Install-ElvUI and Update-ElvUI
• All functions have proper comment-based help (.SYNOPSIS, .DESCRIPTION, .EXAMPLE, .OUTPUTS where applicable)
• No function executes on module import — all functions require explicit invocation

---

Technical decisions

Function classification — public vs. private

Function	Visibility	Purpose
Install-ElvUI	Public	Downloads and installs ElvUI to the AddOns folder
Update-ElvUI	Public	Compares installed vs. latest version and updates if needed; supports -Force
Get-WoWAddOnsPath	Private	Resolves the WoW AddOns folder path for a given flavor
Get-TukuiAddon	Private	Queries the Tukui API for addon metadata
Get-TukuiInstalledVersion	Private	Reads .toc files to extract the installed addon version
Install-TukuiAddon	Private	Downloads, extracts, and installs an addon zip to the AddOns folder

File and folder layout

src/functions/
├── private/
│   ├── Get-WoWAddOnsPath.ps1
│   ├── Get-TukuiAddon.ps1
│   ├── Get-TukuiInstalledVersion.ps1
│   └── Install-TukuiAddon.ps1
└── public/
    ├── Install-ElvUI.ps1
    └── Update-ElvUI.ps1

---

Implementation plan

• Remove all template placeholder files — clear out src/functions/public/ and src/functions/private/
• Create private functions
  • src/functions/private/Get-WoWAddOnsPath.ps1 — resolves <WoWPath>\<Flavor>\Interface\AddOns path
  • src/functions/private/Get-TukuiAddon.ps1 — calls the Tukui API, returns structured [PSCustomObject]
  • src/functions/private/Get-TukuiInstalledVersion.ps1 — reads .toc file to extract installed version
  • src/functions/private/Install-TukuiAddon.ps1 — downloads zip, extracts, removes old folders, copies new
• Create public functions
  • src/functions/public/Install-ElvUI.ps1 — downloads and installs ElvUI to the AddOns folder
  • src/functions/public/Update-ElvUI.ps1 — compares installed vs. latest, installs if update available or -Force is used
• Clean up data files — update src/data/Config.psd1 and src/data/Settings.psd1 for default WoW path and flavor settings
• Update README.md with module name, description, installation instructions, and usage examples

[MariusStorhaug]

Reclassified all *-Tukui* functions as private since this module is specifically for ElvUI management. The public API now exposes only *-ElvUI* functions.

Changes:

• Moved Get-TukuiAddon, Get-TukuiChangelog, and Update-TukuiAddon from public to private
• Added Get-ElvUIChangelog as a new public function wrapping Get-TukuiChangelog -Name elvui
• Removed the Tukui/ subfolder from the public layout — all public functions are now flat under src/functions/public/
• Updated the summary: 4 public, 6 private, 2 removed
• Updated the context to focus on ElvUI management rather than generic Tukui addon management

[MariusStorhaug]

Rewrote the issue description to be declarative — defines the desired end state rather than referencing existing template files or the prototype script. Simplified the title to match. Removed the "Remove" classification rows and the auto-invocation note (now covered by the acceptance criteria bullet about no execution on import).

[MariusStorhaug]

Simplified the scope to two public functions: Install-ElvUI and Update-ElvUI. Removed Get-ElvUIInstalledVersion, Get-ElvUILatestVersion, Get-ElvUIChangelog, Get-TukuiChangelog, and Update-TukuiAddon from the plan. The private layer is now 4 functions instead of 6.