feat: 梅花易数证据链架构 + 64卦爻辞

calculator/src/run-hua.ts

@@ -91,5 +91,55 @@ ${mutual.fullName} (${mutual.symbol})
 卦辞：${mutual.judgment}
 `;
 
+  // 证据链摘要
+  if (r.evidence) {
+    const ev = r.evidence;
+    text += `
+───────────────────────────────────
+  证 据 链
+───────────────────────────────────
+`;
+    // 阶段体用
+    for (const s of ev.stages) {
+      text += `【${s.label}】${s.hexagramName}：体${s.ti.name}${s.ti.element}（${s.ti.seasonState}）vs 用${s.yong.name}${s.yong.element}（${s.yong.seasonState}）→ ${s.relation}
+`;
+    }
+    // 推进
+    if (ev.transitionFacts.length > 0) {
+      text += `
+【阶段推进】
+`;
+      for (const t of ev.transitionFacts) {
+        text += `  ${t.promptText}
+`;
+      }
+    }
+    // 反证
+    text += `
+【反证】${ev.counterSummary.detail}
+`;
+    // 应期
+    if (ev.timingFacts.length > 0) {
+      text += `
+【应期参考】
+`;
+      for (const t of ev.timingFacts) {
+        text += `  ${t.promptText}
+`;
+      }
+    }
+    // 传统文本（仅动爻爻辞）
+    const movingYaoFacts = ev.traditionalFacts.filter(f => f.applicability === '当前动爻辅助');
+    if (movingYaoFacts.length > 0) {
+      text += `
+【动爻爻辞】
+`;
+      for (const f of movingYaoFacts) {
+        text += `  ${f.originalText}
+`;
+      }
+    }
+  }
+
   return text;
 }