feat: add Windows Terminal helper function across all shells

Add `wt` function to launch Windows Terminal with WSL in current directory across Bash, Fish, Nushell, and PowerShell. The function supports passing additional arguments while maintaining the current working directory context.

home/.chezmoitemplates/nushell/config.nu.tmpl

@@ -1044,4 +1044,15 @@ def maestroOn [] {
     bluetoothctl unblock "AC:BF:71:66:FE:B2"
     bluetoothctl connect "AC:BF:71:66:FE:B2"
 }
-{{ end }}
+{{ end }}
+
+{{- if .wsl }}
+# Launch Windows Terminal in current directory
+def wt [...args: string] {
+    if ($args | is-empty) {
+        ^wt.exe -w 0 sp wsl --cd (pwd)
+    } else {
+        ^wt.exe -w 0 ...$args wsl --cd (pwd)
+    }
+}
+{{- end }}

home/.chezmoitemplates/scripts/commonrc.fish.tmpl

@@ -106,4 +106,13 @@ test -x /mnt/c/Users/Xevion/AppData/Local/Programs/cursor/resources/app/bin/curs
 # Zed Editor CLI (Windows installation accessible from WSL)
 test -x /mnt/c/Users/Xevion/AppData/Local/Programs/Zed/bin/zed && \
     fish_add_path /mnt/c/Users/Xevion/AppData/Local/Programs/Zed/bin
+
+# Launch Windows Terminal in current directory
+function wt
+    if test (count $argv) -eq 0
+        wt.exe -w 0 sp wsl --cd (pwd)
+    else
+        wt.exe -w 0 $argv wsl --cd (pwd)
+    end
+end
 {{- end }}

home/.chezmoitemplates/scripts/commonrc.sh.tmpl

@@ -109,6 +109,15 @@ export BROWSER='powershell.exe /c start'
 # Zed Editor CLI (Windows installation accessible from WSL)
 [ -x /mnt/c/Users/Xevion/AppData/Local/Programs/Zed/bin/zed ] && \
     export PATH="$PATH:/mnt/c/Users/Xevion/AppData/Local/Programs/Zed/bin"
+
+# Launch Windows Terminal in current directory
+wt() {
+    if [ $# -eq 0 ]; then
+        wt.exe -w 0 sp wsl --cd "$(pwd)"
+    else
+        wt.exe -w 0 "$@" wsl --cd "$(pwd)"
+    fi
+}
 {{- end }}
 
 # dotnet