feat(ECR-011): 昵称、首页贴士与档案 Self 唯一/合盘交叉校验

每账号仅一条 self（migration 40902）；合盘只选 TA；账号昵称可改；首页穿衣/颜色/养生贴士。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/user-h5/src/composables/useSynastryPage.ts

@@ -56,7 +56,10 @@ export function useSynastryPage() {
   const showQuickAdd = ref(false)
 
   const needsSubTab = computed(() => ['composite', 'davison', 'marks'].includes(mainTab.value))
-  const pickableProfiles = computed(() => profiles.value.filter((p) => p.id !== profileA.value))
+  const pickableProfiles = computed(() =>
+    profiles.value.filter((p) => p.relation === 'other' && p.id !== profileA.value),
+  )
+  const selfProfiles = computed(() => profiles.value.filter((p) => p.relation === 'self'))
   const profileAName = computed(() => {
     const p = profiles.value.find((x) => x.id === profileA.value)
     return p?.display_name || ''
@@ -178,6 +181,7 @@ export function useSynastryPage() {
     showQuickAdd,
     needsSubTab,
     pickableProfiles,
+    selfProfiles,
     profileAName,
     selfInitial,
     profileInitial,