check Nushell files in the CI

in order to help catch issues with the various Nushell scripts and modules in the source base, i propose to add a CI script that will check them all.

below is an example error, e.g. when introducing a syntax error in .env.nu:

Error:   × Failed to parse content:
  │     file: .env.nu
  │     err:  Expected keyword.

scripts/check-nushell-files.nu

+let files = [
+    [name,                                 is_module, ignore, reason];
+
+    [bins/inbreeding,                      true,      false,  null],
+    [.nushell,                             true,      false,  null],
+    [tests/cli.nu,                         false,     false,  null],
+    [tests/binary.nu,                      false,     false,  null],
+    [tests/color.nu,                       false,     false,  null],
+    [examples/cli.nu,                      false,     false,  null],
+    [komodo.nu,                            false,     false,  null],
+    [benchmarks/.nushell/commit/run.nu,    false,     false,  null],
+    [benchmarks/.nushell/fec/run.nu,       false,     true,   "fails for some reason..."],
+    [benchmarks/.nushell/recoding/run.nu,  false,     true,   "fails for some reason..."],
+    [benchmarks/.nushell/setup/run.nu,     false,     false,  null],
+    [benchmarks/.nushell/commit/plot.nu,   false,     false,  null],
+    [benchmarks/.nushell/fec/plot.nu,      false,     false,  null],
+    [benchmarks/.nushell/recoding/plot.nu, false,     false,  null],
+    [benchmarks/.nushell/setup/plot.nu,    false,     false,  null],
+]
+
+for f in $files {
+    let path = $env.FILE_PWD | path dirname | path join $f.name
+
+    if $f.ignore {
+        print $"ignore ($f.name): ($f.reason)"
+        continue
+    }
+
+    try {
+        if $f.is_module {
+            nu-check $path --debug --as-module
+        } else {
+            nu-check $path --debug
+        }
+    } catch { |e|
+        let err = $e.debug
+            | ansi strip
+            | parse '{foo}msg: "Found : {msg}", span: {bar}'
+            | into record
+            | get msg
+        error make --unspanned {
+            msg: ([
+                $"($e.msg):",
+                $"    file: ($f.name)",
+                $"    err:  ($err)",
+            ] | str join "\n")
+        }
+    }
+}