feat(growth,skills,saas,desktop): C线差异化全量实现 — C1日报+C2飞轮+C3引导

C3 零配置引导 (P0):
- use-cold-start.ts: 4阶段→6阶段对话驱动状态机 (idle→greeting→industry→identity→task→completed)
- cold-start-mapper.ts: 关键词行业检测 + 肯定/否定/名字提取
- cold_start_prompt.rs: Rust侧6阶段system prompt生成 + 7个测试
- FirstConversationPrompt.tsx: 动态行业卡片 + 行业任务引导 + 通用快捷操作

C1 管家日报 (P0):
- kernel注册DailyReportHand (第8个Hand)
- DailyReportPanel.tsx已存在，事件监听+持久化完整

C2 行业知识飞轮 (P1):
- heartbeat.rs: 经验缓存(EXPERIENCE_CACHE) + check_unresolved_pains增强经验感知
- heartbeat_update_experiences Tauri命令 + VikingStorage持久化
- semantic_router.rs: 经验权重boost(0.05*ln(count+1), 上限0.15) + update_experience_boosts方法
- service.rs: auto_optimize_config() 基于使用频率自动优化行业skill_priorities

验证: tsc 0 errors, cargo check 0 warnings, 7 cold_start + 5 daily_report + 1 experience_boost tests PASS

crates/zclaw-kernel/src/kernel/mod.rs

@@ -25,7 +25,7 @@ use crate::config::KernelConfig;
 use zclaw_memory::MemoryStore;
 use zclaw_runtime::{LlmDriver, ToolRegistry, tool::SkillExecutor};
 use zclaw_skills::SkillRegistry;
-use zclaw_hands::{HandRegistry, hands::{BrowserHand, QuizHand, ResearcherHand, CollectorHand, ClipHand, TwitterHand, ReminderHand, quiz::LlmQuizGenerator}};
+use zclaw_hands::{HandRegistry, hands::{BrowserHand, QuizHand, ResearcherHand, CollectorHand, ClipHand, TwitterHand, ReminderHand, DailyReportHand, quiz::LlmQuizGenerator}};
 
 pub use adapters::KernelSkillExecutor;
 pub use adapters::KernelHandExecutor;
@@ -103,6 +103,7 @@ impl Kernel {
         hands.register(Arc::new(ClipHand::new())).await;
         hands.register(Arc::new(TwitterHand::new())).await;
         hands.register(Arc::new(ReminderHand::new())).await;
+        hands.register(Arc::new(DailyReportHand::new())).await;
 
         // Cache hand configs for tool registry (sync access from create_tool_registry)
         let hand_configs = hands.list().await;