fix(test): use possible configs

lua/cp/snippets.lua

@@ -101,7 +101,7 @@ if __name__ == "__main__":
   }
 
   local user_overrides = {}
-  for _, snippet in ipairs((config and config.snippets) or {}) do
+  for _, snippet in ipairs(config.snippets) do
     user_overrides[snippet.trigger] = snippet
   end
 

spec/snippets_spec.lua

@@ -173,9 +173,9 @@ describe('cp.snippets', function()
       assert.is_not_nil(mock_luasnip.added.python)
     end)
 
-    it('handles nil config gracefully', function()
+    it('handles empty config gracefully', function()
       assert.has_no_errors(function()
-        snippets.setup()
+        snippets.setup({ snippets = {} })
       end)
     end)