Phase 1 Foundations: onboarding profile, nav padding, backpack views, AI persona

- profileStore (MMKV) + pure profileLogic (types, options, isProfileComplete,
  buildPersona). Rich first-run onboarding (app/onboarding.tsx): name/role,
  industry, vibes (multi), goal, brand colors, social links, inspirations.
- First-launch gate in (tabs)/_layout via <Redirect> guarded by a hydration
  flag; onboarding registered in the root stack.
- Bottom tab bar made taller with safe-area bottom padding.
- Backpack (Cards tab): Grid / Showcase view toggle + add-new entry.
- Business cards skip data entry: demo.tsx prefills name/title/links from the
  profile (creative tools lead).
- Persona → AI: SceneBrief/refine_prompt gain an optional persona (role/vibe/
  colors/goal); mobile generators pass buildPersona(profile). FakeAiClient
  echoes the role. genwizard gains MultiChips.
- Tests: mobile 28 (new profileLogic), backend 121 (new refine_includes_persona).

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

cardclaws-backend/crates/cardclaws-api/tests/ai_test.rs

@@ -22,6 +22,25 @@ async fn refine_returns_a_prompt() {
     assert!(prompt.contains("neon Tokyo street"));
 }
 
+#[tokio::test]
+async fn refine_includes_persona() {
+    let app = require_app!();
+    let (status, body) = app
+        .request(
+            "POST",
+            "/v1/ai/refine",
+            None,
+            Some(json!({
+                "scene": "a calm forest at dawn",
+                "persona": { "role": "Founder", "vibe": "Cinematic, Luxe", "colors": ["#ff3b30"], "goal": "networking" }
+            })),
+        )
+        .await;
+    assert_eq!(status, StatusCode::OK);
+    // FakeAiClient echoes the persona role into the refined prompt.
+    assert!(body["prompt"].as_str().unwrap().contains("Founder"));
+}
+
 #[tokio::test]
 async fn refine_requires_a_scene() {
     let app = require_app!();