relation: 由關係推導語氣層（bond × 親近度 + 節點上的個人化規則）

人格對伴侶與對女兒用同一種溫度講話，因為 kind 只說得出「這是人還是程式」，
說不出「跟我什麼關係」。語氣需要的是後者。

- 關係節點新增 bond（partner/child/parent/sibling/friend/mentor/ally/rival/
  stranger）；舊節點沒有的話從 tags/note 推測
- bond × 親近度 → 語氣層查表（伴侶 98 = 老夫老妻、子女 97 = 母親），
  解決「都是 9x 分卻分不出戀人與母女」
- node.style[facet] 記使用者本人要求過的規則（稱呼／敬語／口頭禪／禁忌／習慣），
  優先於查表；不另開檔案，因為關係圖每輪都會被讀進 context，
  這類規則不必跟關鍵詞召回競爭
- style 規則可帶 except（如 anger>=40），情緒成立時該規則暫停、退回預設講法
- relation speaker 指定使用者是關係圖裡的哪個節點，turnContext 每輪注入語氣指示
- 新增 relation style / relation speaker 子指令；selftest +8 項（共 228 項）

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

scripts/selftest.mjs

@@ -983,6 +983,50 @@ check("關係節點換 id 不會長出同名的第二個節點", (() => {
   return same.length === 1 && same[0].id === "WELL-01" && same[0].closeness === 40 && same[0].trust === 55 &&
     data.edges.some((e) => e.to === "WELL-01");
 })());
+// --- 語氣層：bond × 親近度 → 距離感，node.style → 他本人要求的稱呼 ------------ //
+check("bond 決定語氣層：伴侶 98 是老夫老妻，子女 97 是母親（光看親近度分不出來）", (() => {
+  cli(["relation", "node", "--session", S_HOST, "--name", "伴侶甲", "--bond", "partner", "--closeness", "98"]);
+  cli(["relation", "node", "--session", S_HOST, "--name", "女兒乙", "--bond", "child", "--closeness", "97"]);
+  const nodes = pl.loadRelations("alpha").nodes;
+  const partner = pl.toneFor(nodes.find((n) => n.name === "伴侶甲"));
+  const child = pl.toneFor(nodes.find((n) => n.name === "女兒乙"));
+  return partner.layer === "老夫老妻" && child.layer === "母親／父親" && partner.layer !== child.layer;
+})());
+check("未知的 --bond 會被擋下", cli(["relation", "node", "--session", S_HOST, "--name", "路人丙", "--bond", "soulmate"]).status !== 0);
+check("舊節點沒有 bond 也能從 tags 推測", (() => {
+  cli(["relation", "node", "--session", S_HOST, "--name", "老朋友丁", "--closeness", "75", "--tags", "摯友"]);
+  const node = pl.loadRelations("alpha").nodes.find((n) => n.name === "老朋友丁");
+  delete node.bond; // 模擬 bond 欄位存在之前建立的資料
+  return pl.inferBond(node) === "friend" && pl.toneFor(node).layer === "摯友";
+})());
+check("relation style：他要求的稱呼記在關係節點上，不另開檔案", (() => {
+  const res = cli(["relation", "style", "--session", S_HOST, "--name", "伴侶甲",
+    "--facet", "稱呼", "--value", "親愛的", "--except", "anger>=40"]);
+  const node = pl.loadRelations("alpha").nodes.find((n) => n.name === "伴侶甲");
+  return res.status === 0 && node.style?.["稱呼"]?.value === "親愛的" && node.style["稱呼"].since;
+})());
+check("語氣規則會被情緒暫停（anger 過門檻就退回預設講法）", (() => {
+  const node = pl.loadRelations("alpha").nodes.find((n) => n.name === "伴侶甲");
+  cli(["emotion", "--session", S_HOST, "--apply", "anger=-100", "--trigger", "selftest 平靜"]);
+  const calm = pl.styleRules("alpha", node);
+  cli(["emotion", "--session", S_HOST, "--apply", "anger=+90", "--trigger", "selftest 生氣"]);
+  const angry = pl.styleRules("alpha", node);
+  cli(["emotion", "--session", S_HOST, "--apply", "anger=-100", "--trigger", "selftest 復原"]);
+  return calm[0].suspended === false && angry[0].suspended === true;
+})());
+check("relation speaker 設定後，context 會注入語氣層與稱呼規則", (() => {
+  const res = cli(["relation", "speaker", "--session", S_HOST, "--name", "伴侶甲"]);
+  const ctx = pl.turnContext("alpha", S_HOST, "今天過得好嗎");
+  return res.status === 0 && pl.loadConfig("alpha").speaker_node === pl.slugify("伴侶甲") &&
+    ctx.includes("語氣層：老夫老妻") && ctx.includes("親愛的");
+})());
+check("relation speaker --clear 之後就不再注入語氣指示", (() => {
+  cli(["relation", "speaker", "--session", S_HOST, "--clear"]);
+  return !pl.loadConfig("alpha").speaker_node &&
+    !pl.turnContext("alpha", S_HOST, "今天過得好嗎").includes("對話對象：");
+})());
+check("speaker 指向不存在的人會被擋下",
+  cli(["relation", "speaker", "--session", S_HOST, "--name", "不存在的人"]).status !== 0);
 check("sleeper 型別存在且宣告了唯讀工具限制", (() => {
   const md = fs.readFileSync(path.join(HERE, "..", "agents", "persona-sleeper.md"), "utf8");
   return md.includes("name: persona-sleeper") && md.includes("disallowedTools") &&