fix: address Copilot review on #347 (explicit eol=lf + comment honesty)

.editorconfig

@@ -26,10 +26,11 @@ indent_size = 2
 indent_size = 2
 
 # PowerShell files
-# Use LF + no BOM so the `#!/usr/bin/env pwsh` shebang works on Linux/macOS.
-# (CR breaks kernel exec lookup; BOM before `#!` prevents shebang recognition.)
-# Modern PowerShell 7+ handles LF on Windows transparently; users with
-# autocrlf=true still get CRLF in their working tree on checkout.
+# Only the indent override is needed; LF + UTF-8 (no BOM) come from the
+# global [*] section above. LF + no-BOM is required for the
+# `#!/usr/bin/env pwsh` shebang at the top of every script in scripts/
+# to work on Linux/macOS — CR breaks the kernel's exec lookup, and a
+# leading BOM prevents shebang recognition entirely.
 [*.ps1]
 indent_size = 4
 

.gitattributes

@@ -16,7 +16,7 @@
 # Modern PowerShell 7+ handles LF on Windows transparently; Git's
 # autocrlf still gives Windows users CRLF in their working tree if
 # desired without forcing CRLF into the index.
-*.ps1 text
+*.ps1 text eol=lf
 
 
 # Build and configuration files