Remove redundant habit copy and document goal layouts

src/components/design-system/HabitColorPicker.tsx

@@ -40,7 +40,6 @@ export function isHabitColor(value: string) {
 export function HabitColorPicker({
   value,
   onChange,
-  mode = "demo",
   compact = false,
 }: {
   value: string;
@@ -55,8 +54,8 @@ export function HabitColorPicker({
   return (
     <fieldset className="ds-color-picker" aria-describedby={`${id}-hint`}>
       <legend>Habit color</legend>
-      <p id={`${id}-hint`} className="ds-footnote">
-        {showDetails ? "Choose a suggested shade or enter a custom color for this habit’s calendar." : "Choose a color for your habit."}
+      <p id={`${id}-hint`} className={showDetails ? "ds-footnote" : "ds-visually-hidden"}>
+        Custom colors use six-digit hex values, such as #426582.
       </p>
       {compact && (
         <>
@@ -156,13 +155,6 @@ export function HabitColorPicker({
           <span className="ds-muted">0 → complete</span>
         </div>
       )}
-      <p className="ds-footnote">
-        {mode === "create"
-          ? "Saved with your habit."
-          : mode === "edit"
-            ? "Save to apply this color; Cancel restores the saved color."
-            : "Charts preview changes immediately. Save keeps the demo color; Cancel reverts it."}
-      </p>
       {!valid && (
         <p id={`${id}-error`} role="alert" className="ds-form-feedback">
           Use a six-digit hex color, such as #426582.

src/components/design-system/accessibility.test.tsx

@@ -135,7 +135,7 @@ test("invalid custom colors associate both guidance and corrective feedback", as
   await act(async () => root.render(<HabitColorPicker value="#bad" onChange={() => {}} />));
   const input = container.querySelector('input[type="text"]')!;
   expect(input.getAttribute("aria-invalid")).toBe("true");
-  expect(description(input)).toContain("Choose a suggested shade");
+  expect(description(input)).toContain("Custom colors use six-digit hex values");
   expect(description(input)).toContain("Use a six-digit hex color");
 });