flake.nix: split off sqlite debugging tools into separate devshell

flake.nix

@@ -77,16 +77,12 @@
 
     devShells = forAllSystems (system: pkgs: {
       default = pkgs.mkShell {
-        buildInputs = with pkgs; [
+        packages = with pkgs; [
           dart
           gnumake
           lcov
           sqldiff
-          sqlite-analyzer
           sqlite-interactive
-          sqlite-web
-          # sqlint
-          sqlfluff
         ];
         env = {
           LIBSQLITE_PATH = "${pkgs.sqlite.out}/lib/libsqlite3.so";
@@ -94,6 +90,16 @@
           LD_LIBRARY_PATH = lib.makeLibraryPath [ pkgs.sqlite ];
         };
       };
+
+      sqlite-debugging = pkgs.mkShell {
+        packages = with pkgs; [
+          sqlite-sqlite-interactive
+          sqlite-analyzer
+          sqlite-web
+          sqlint
+          sqlfluff
+        ];
+      };
     });
 
     packages = let