"Now" status scan experience — show what you're currently up to

Experience #9 (lite): a published card can carry a "Now" line shown with a live
pulsing dot, so a scanned profile reflects what the person is currently doing.

- Backend: demo publish accepts optional `now` -> definition.profile.now; test
  asserts it. Gate green (120 tests).
- Web: renders a "Now: …" block with an animated green dot. astro check clean.
- Mobile: a "Now" field on the publish screen.

Verified live alongside a link payload (CTA button).

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

cardclaws-mobile/app/publish.tsx

@@ -31,6 +31,7 @@ export default function PublishScreen() {
   const [payloadKind, setPayloadKind] = useState<"none" | "link" | "code">("none");
   const [payloadLabel, setPayloadLabel] = useState("");
   const [payloadValue, setPayloadValue] = useState("");
+  const [now, setNow] = useState("");
   const [busy, setBusy] = useState(false);
   const [result, setResult] = useState<string | null>(card?.publishedUrl ?? null);
 
@@ -56,6 +57,7 @@ export default function PublishScreen() {
           payloadKind !== "none" && payloadValue.trim()
             ? { kind: payloadKind, label: payloadLabel.trim(), value: payloadValue.trim() }
             : undefined,
+        now: now.trim() || undefined,
       });
       // Point the card's QR at the real profile + remember it.
       upsert({ ...card, url: profileUrl, publishedUrl: profileUrl, updatedAt: Date.now() });
@@ -101,6 +103,16 @@ export default function PublishScreen() {
         </>
       )}
 
+      <Text style={styles.label}>Now — what you’re up to (optional)</Text>
+      <TextInput
+        style={styles.input}
+        editable={!busy}
+        placeholder="e.g. Building CardClaws · open to design partners"
+        placeholderTextColor="#6b6b70"
+        value={now}
+        onChangeText={setNow}
+      />
+
       <Text style={styles.label}>Payload drop (optional)</Text>
       <View style={styles.kindRow}>
         {(["none", "link", "code"] as const).map((k) => (