chore: catch up Storybook preview, coverage, and story hygiene

Stories were throwing without AuthModal/CreateFlow providers, autodocs was a no-op, and several DS/create-flow screens had no stories.

stories/buttons/InlineTextButton.stories.js

@@ -33,7 +33,7 @@ export const Default = {
 
 export const InParagraph = {
   render: () => (
-    <p className="max-w-md font-inter text-[14px] leading-[20px] text-[color:var(--color-content-default-primary,#fff)]">
+    <p className="max-w-md text-small-paragraph text-[var(--color-content-default-primary)]">
       Share a bit more detail so the group can weigh in. You can always{" "}
       <InlineTextButton onClick={() => {}}>expand this later</InlineTextButton>{" "}
       if you need more room.