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/controls/Chip.stories.js

@@ -1,4 +1,9 @@
 import Chip from "../../app/components/controls/Chip";
+import {
+  CHIP_PALETTE_OPTIONS,
+  CHIP_SIZE_OPTIONS,
+  CHIP_STATE_OPTIONS,
+} from "../../lib/propNormalization";
 
 export default {
   title: "Components/Controls/Chip",
@@ -13,17 +18,17 @@ export default {
     },
     state: {
       control: "select",
-      options: ["unselected", "selected", "disabled", "custom"],
+      options: [...CHIP_STATE_OPTIONS],
       description: "Visual state of the chip",
     },
     palette: {
       control: "select",
-      options: ["default", "inverse"],
+      options: [...CHIP_PALETTE_OPTIONS],
       description: "Color palette of the chip",
     },
     size: {
       control: "select",
-      options: ["s", "m"],
+      options: [...CHIP_SIZE_OPTIONS],
       description: "Size of the chip",
     },
     disabled: {