PowerShell development standards for this project. Use when writing, reviewing, or debugging PowerShell code (.ps1, .psm1, .psd1). Covers naming conventions (Verb-Noun, CmdletBinding), error handling (-ErrorAction Stop), performance (List<T>, .Where()), security (TryParse, Test-SafePath), console UI (brackets not emoji), logging (Write-Log module), and Pester testing.