fix(t95+t96): 查詢 CJK 邊界自動補空白＋圖譜節點模糊命中

leo 07-28 實測：「AI協作」（無空白）搜不到；圖譜搜「AI 協作」0 鄰居但總圖有「AI 協作規範書」節點（「這個搜尋詞來自 Graph View 的一部分，居然搜不到？」）。 - normalizeCjkQuery：CJK↔ASCII 邊界插空白，search q 與 graph 節點名都過 - fuzzyFindNode：精確 0 鄰居時 fallback contains 比對（取最短命中）重查測試 +18 全綠（vitest 197 passed；9 個既有紅=console HTML 搬遷陳舊測試，與本案無關， stash 基線對照確認）。B5 分支衝突面已查：僅 line 274 一行。（實作＝子 CC；驗證+commit＝總管）
2026-07-28 15:06:07 +08:00
parent ba92d10a3f
commit e36cd2d990
4 changed files with 266 additions and 6 deletions
@@ -121,6 +121,62 @@ export function filterDeprecatedEntries<T extends { metadata_json?: string | nul
  });
 }

+/**
+ * CJK/ASCII 邊界插空白正規化（t95）：
+ * 「AI協作」→「AI 協作」；「協作AI」→「協作 AI」；已有空白不重複插。
+ * 只動查詢端，不動索引端。純函式，單測用 export。
+ */
+export function normalizeCjkQuery(q: string): string {
+  // U+3040-U+9FFF: Hiragana/Katakana/CJK Ext.A/CJK main; U+F900-U+FAFF: CJK Compat.
+  const isCjk = (c: string) => /[぀-鿿豈-﫿]/.test(c);
+  const isAsciiAlnum = (c: string) => /[぀-鿿豈-﫿]/.test(c);
+  let result = '';
+  for (let i = 0; i < q.length; i++) {
+    const ch = q[i];
+    if (result.length > 0) {
+      const prev = result[result.length - 1];
+      if (prev !== ' ' && ch !== ' ' &&
+          ((isCjk(prev) && /[A-Za-z0-9]/.test(ch)) || (/[A-Za-z0-9]/.test(prev) && isCjk(ch)))) {
+        result += ' ';
+      }
+    }
+    result += ch;
+  }
+  return result;
+}
+
+/**
+ * 從三元組節點名清單找最佳比對（t96 fuzzy fallback 用）：
+ * 正規化後做 contains 比對；多命中取最短名（前綴/最精確優先）。純函式，單測用 export。
+ */
+export function findBestNodeMatch(searchTerm: string, nodeNames: string[]): string | null {
+  const term = normalizeCjkQuery(searchTerm).toLowerCase();
+  if (!term) return null;
+  const hits = nodeNames.filter(n => normalizeCjkQuery(n).toLowerCase().includes(term));
+  if (hits.length === 0) return null;
+  return hits.reduce((a, b) => a.length <= b.length ? a : b);
+}
+
+/** 從 KBDB triplet records 找最佳比對節點名（t96 plugin fuzzy fallback 用）。 */
+async function fuzzyFindNode(env: Bindings, tenant: string, searchTerm: string): Promise<string | null> {
+  try {
+    const res = await kbdbFetch(env, `/records/by-template/triplet?owner_id=${encodeURIComponent(tenant)}`);
+    if (!res.ok) return null;
+    const body = (await res.json().catch(() => null)) as { records?: { values?: Record<string, unknown> }[] } | null;
+    if (!body || !Array.isArray(body.records)) return null;
+    const nodeNames = new Set<string>();
+    for (const r of body.records) {
+      const v = r?.values;
+      if (!v || typeof v !== 'object') continue;
+      if (typeof v.subject === 'string' && v.subject.trim()) nodeNames.add(v.subject.trim());
+      if (typeof v.object === 'string' && v.object.trim()) nodeNames.add(v.object.trim());
+    }
+    return findBestNodeMatch(searchTerm, [...nodeNames]);
+  } catch {
+    return null; // fallback 失敗靜默略過，原本 0 結果直接回
+  }
+}
+
 // GET /portal/data/search?q=&mode=&entry_type=&limit= — 三模式中的 keyword/semantic
 //（graph 走 /portal/data/graph/*）。server 注入 owner_id＋library；回應照 KBDB 原形
 //（entries 含 metadata_json，前端自取 source 溯源；mode/capability_hint 誠實透傳——
@@ -129,8 +185,9 @@ portalDataRouter.get('/portal/data/search', (c) =>
  run(c, async () => {
    const auth = await requirePortalUser(c);
    if (!auth.ok) return auth.res;
-    const q = c.req.query('q');
-    if (!q) return c.json({ error: 'q 必填' }, 400);
+    const qRaw = c.req.query('q');
+    if (!qRaw) return c.json({ error: 'q 必填' }, 400);
+    const q = normalizeCjkQuery(qRaw); // t95: CJK/ASCII 邊界補空白（只動查詢端）

    const libraries = parseLibraries(auth.user.values.libraries);
    if (libraries.length === 0) {
@@ -205,6 +262,9 @@ portalDataRouter.get('/portal/data/graph/neighbors/:name', (c) =>
      return c.json({ error: '無知識圖譜檢視權限' }, 403);
    }

+    // t95/t96: CJK 正規化後再用（避免「AI協作」找不到「AI 協作」節點）
+    const nodeName = normalizeCjkQuery(c.req.param('name'));
+
    // ① tenant workflow 路徑（存在才走；input：node=path、depth=query 預設 2、namespace/owner=tenant）
    const tenant = portalTenant(c.env);
    const wfGraph = await getTenantWorkflowGraph(c.env, 'graph_neighbors');
@@ -214,7 +274,7 @@ portalDataRouter.get('/portal/data/graph/neighbors/:name', (c) =>
      const result = await executeWebhookGraph(
        c.env,
        wfGraph,
-        { node: c.req.param('name'), depth, namespace: tenant, owner: tenant },
+        { node: nodeName, depth, namespace: tenant, owner: tenant },
        'graph_neighbors',
        tenant,
        c.executionCtx,
@@ -231,8 +291,23 @@ portalDataRouter.get('/portal/data/graph/neighbors/:name', (c) =>
    const headers: Record<string, string> = {};
    if (c.env.KBDB_INTERNAL_TOKEN) headers['Authorization'] = `Bearer ${c.env.KBDB_INTERNAL_TOKEN}`;
    try {
-      const res = await fetch(`${base}/graph/neighbors/${encodeURIComponent(c.req.param('name'))}`, { headers });
-      return new Response(res.body, { status: res.status, headers: { 'Content-Type': 'application/json' } });
+      const res = await fetch(`${base}/graph/neighbors/${encodeURIComponent(nodeName)}`, { headers });
+      if (!res.ok) {
+        return new Response(res.body, { status: res.status, headers: { 'Content-Type': 'application/json' } });
+      }
+      // t96: 精確命中 0 鄰居 → 試 substring fallback 找最佳節點名（如「AI 協作」→「AI 協作規範書」）
+      const resText = await res.text().catch(() => '');
+      let data: { neighbors?: unknown[]; edges?: unknown[] } | null = null;
+      try { data = JSON.parse(resText) as typeof data; } catch { /* 非 JSON → 直接透傳 */ }
+      if (data && Array.isArray(data.neighbors) && data.neighbors.length === 0 &&
+          Array.isArray(data.edges) && data.edges.length === 0) {
+        const fallbackName = await fuzzyFindNode(c.env, tenant, nodeName);
+        if (fallbackName && fallbackName !== nodeName) {
+          const res2 = await fetch(`${base}/graph/neighbors/${encodeURIComponent(fallbackName)}`, { headers });
+          return new Response(res2.body, { status: res2.status, headers: { 'Content-Type': 'application/json' } });
+        }
+      }
+      return new Response(resText, { status: res.status, headers: { 'Content-Type': 'application/json' } });
    } catch (e) {
      // plugin 沒部署/不可達 → 誠實 502（前端顯示「關聯服務不可達」，不假裝無關聯）
      return c.json({ error: `kbdb-graph-plugin 不可達：${e instanceof Error ? e.message : String(e)}` }, 502);