feat(hands,desktop): C线差异化 — 管家日报 + 零配置引导优化

C1 管家日报:
- 新增 _daily_report Hand (daily_report.rs) — 5个测试
- 增强 user_profile_store — PainPoint 结构体 + find_active_pains_since + resolve_pain
- experience_store 新增 find_since 日期范围查询
- trajectory_store 新增 get_events_since 日期范围查询
- 新增 DailyReportPanel.tsx 前端日报面板
- Sidebar 新增"日报"导航入口

C3 零配置引导:
- 修复行业卡点击后阶段推进 bug (industry_discovery → identity_setup)

验证: 940 tests PASS, 0 failures

crates/zclaw-growth/src/experience_store.rs

@@ -248,6 +248,20 @@ impl ExperienceStore {
         debug!("[ExperienceStore] Deleted experience {} for agent {}", exp.id, exp.agent_id);
         Ok(())
     }
+
+    /// Find experiences for an agent created since the given datetime.
+    /// Filters by deserializing each entry and checking `created_at`.
+    pub async fn find_since(
+        &self,
+        agent_id: &str,
+        since: DateTime<Utc>,
+    ) -> zclaw_types::Result<Vec<Experience>> {
+        let all = self.find_by_agent(agent_id).await?;
+        Ok(all
+            .into_iter()
+            .filter(|exp| exp.created_at >= since)
+            .collect())
+    }
 }
 
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