fix: 第六轮全面搜索审计修复 — 12项

Parser: Title/Abstract大小写匹配、末尾OR空Term保护、tokeniser gap字符恢复、
混合日期范围反转支持
Engine: field标签正则含/、ATM括号剥离、name_zh LIMIT 100、
year_from/ year_to is not null检查
Docs: 更新修复全记录至第六轮

frontend/src/views/app/SearchView.vue

@@ -377,7 +377,7 @@ function restoreFromQuery() {
   if (route.query.sort) sort.value = String(route.query.sort)
   if (route.query.year_from) yearFromStr.value = String(route.query.year_from)
   if (route.query.year_to) yearToStr.value = String(route.query.year_to)
-  if (route.query.date_preset && ['1y','5y','10y'].includes(String(route.query.date_preset))) {
+  if (route.query.date_preset && ['1y','5y','10y','custom'].includes(String(route.query.date_preset))) {
     datePreset.value = String(route.query.date_preset)
   } else if (route.query.date_from || route.query.date_to) {
     datePreset.value = null
@@ -487,8 +487,11 @@ function syncSearchToUrl() {
     else if (datePreset.value === '10y') d.setUTCFullYear(d.getUTCFullYear() - 10)
     q.date_from = d.toISOString().slice(0, 10)
   } else {
-    if (yearFromStr.value) q.year_from = yearFromStr.value
-    if (yearToStr.value) q.year_to = yearToStr.value
+    if (datePreset.value === 'custom') q.date_preset = 'custom'
+    if (urlDateFrom.value) q.date_from = urlDateFrom.value
+    else if (yearFromStr.value) q.year_from = yearFromStr.value
+    if (urlDateTo.value) q.date_to = urlDateTo.value
+    else if (yearToStr.value) q.year_to = yearToStr.value
   }
   if (selectedTags.value.length) q.tag = selectedTags.value.join(',')
   if (selectedTiers.value.length) q.tier = selectedTiers.value.join(',')
@@ -835,9 +838,11 @@ const specialTags = computed(() => filterOptions.value?.special_tags || {})
           <NSelect v-model:value="sort" :options="[
             {label:'Best Match',value:'best_match'},
             {label:'Most Recent',value:'date'},
-            {label:'Publication date',value:'pub_date'},
+            {label:'Most Cited',value:'cited'},
+            {label:'Relevance',value:'relevance'},
             {label:'First author',value:'first_author'},
             {label:'Journal',value:'journal'},
+            {label:'Title',value:'title'},
           ]" size="tiny" style="width:150px" @update:value="goToPage(1)" />
           <span class="toolbar-label">每页:</span>
           <NSelect v-model:value="pageSize" :options="[