fix(industry): 审计收尾 — MEDIUM + LOW 全部清零

M-1: Industries 创建弹窗添加 cold_start_template + pain_seed_categories
M-3: industryStore console.warn → createLogger 结构化日志
B2: classify_with_industries 平局打破 + 归一化因子 3.0 文档化
S3: set_account_industries 验证移入事务内消除 TOCTOU
T1: 4 个 SaaS 请求类型添加 deny_unknown_fields
I3: store_trigger_experience Debug 格式 → signal_name 描述名
L-1: 删除 Accounts.tsx 死代码 editingIndustries
L-3: Industries.tsx filters 类型补全 source 字段

crates/zclaw-runtime/src/middleware/butler_router.rs

@@ -130,11 +130,15 @@ impl KeywordClassifier {
         if hits == 0 {
             return 0.0;
         }
-        // Normalize: more hits = higher score, capped at 1.0
+        // Normalize: 3 keyword hits → score 1.0 (saturated). Threshold 0.2 ≈ 0.6 hits.
         (hits as f32 / 3.0).min(1.0)
     }
 
     /// Classify against dynamic industry keyword configs.
+    ///
+    /// Tie-breaking: when two industries score equally, the *first* entry wins
+    /// (keeps existing best on `<=`). Industries should be ordered by priority
+    /// in the config array if specific tie-breaking is desired.
     fn classify_with_industries(query: &str, industries: &[IndustryKeywordConfig]) -> Option<RoutingHint> {
         let lower = query.to_lowercase();