builders.foundation.basic: Add strings and numbers as valid types for vars (#54)

I forgor 💀

Reviewed-on: #54
Reviewed-by: vlinkz <vlinkz@snowflakeos.org>
Co-authored-by: Ross Smyth <snix@treefroog.com>
Co-committed-by: Ross Smyth <snix@treefroog.com>

tidepool/src/lib/types.nix

@@ -70,6 +70,8 @@ in
       # Any arbitrary Bash variable
       bashVar =
         (lib.types.one [
+          lib.types.number
+          lib.types.bashString
           lib.types.bashList
           lib.types.bashMap
         ])