docs: freeze YuXinGu lexicon, journey, and P1 engineering sources

Establish product language contract, user journey with dual growth engines,
ERD/OpenAPI/Go boundaries, and H5 routes (/profile, /portrait, /relation,
/membership) before P1 implementation.

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

apps/user-h5/src/pages/HomePage.vue

@@ -2,12 +2,12 @@
   <main class="home">
     <header class="brand">
       <div class="word">愈<span>心</span>谷</div>
-      <p class="tag">愈见自己 · 遇见更好</p>
+      <p class="tag">认识自己 · 理解他人</p>
     </header>
 
-    <section class="decode-card">
-      <h2>愈心解码</h2>
-      <p class="sub">一个生日，读懂你的身与心</p>
+    <section class="portrait-card">
+      <h2>性格探索</h2>
+      <p class="sub">填写生日，生成你的成长画像</p>
       <div class="row">
         <input v-model="year" type="number" placeholder="1990" />
         <span>年</span>
@@ -15,15 +15,15 @@
         <span>月</span>
         <input v-model="day" type="number" placeholder="1" />
         <span>日</span>
-        <button type="button" @click="goDecode">生成</button>
+        <button type="button" @click="goPortrait">开始</button>
       </div>
       <p v-if="err" class="err">{{ err }}</p>
     </section>
 
     <section class="block">
-      <div class="head"><h3>认识自己</h3><router-link to="/explore">全部</router-link></div>
+      <div class="head"><h3>快捷入口</h3><router-link to="/explore">全部</router-link></div>
       <div class="grid">
-        <router-link v-for="t in tests" :key="t.to" :to="t.to" class="cell">
+        <router-link v-for="t in entries" :key="t.to" :to="t.to" class="cell">
           <div class="icon" :style="{ background: t.bg, color: t.fg }">{{ t.icon }}</div>
           <span>{{ t.label }}</span>
         </router-link>
@@ -50,14 +50,17 @@ const day = ref('')
 const err = ref('')
 const apiStatus = ref('检测中…')
 
-const tests = [
-  { to: '/decode', icon: '△', label: '愈心解码', bg: '#FFF3D6', fg: '#C8923A' },
-  { to: '/explore', icon: '◆', label: '性格测评', bg: '#E3EEFF', fg: '#4A90E2' },
-  { to: '/ask', icon: '问', label: '愈心问答', bg: '#FFE4E4', fg: '#E54D42' },
+const entries = [
+  { to: '/portrait', icon: '△', label: '性格探索', bg: '#FFF3D6', fg: '#C8923A' },
+  { to: '/explore', icon: '◆', label: '人格测评', bg: '#E3EEFF', fg: '#4A90E2' },
+  { to: '/relation', icon: '◇', label: '关系理解', bg: '#FFE8D6', fg: '#E8985A' },
+  { to: '/ask', icon: '问', label: 'AI问答', bg: '#FFE4E4', fg: '#E54D42' },
   { to: '/companion', icon: '☯', label: '节气陪伴', bg: '#E0F6E4', fg: '#5CB85C' },
+  { to: '/profile', icon: '◍', label: '个人档案', bg: '#F0F4F8', fg: '#5A6A7A' },
+  { to: '/membership', icon: '◇', label: '成长会员', bg: '#F5F0FF', fg: '#8B5CF6' },
 ]
 
-function goDecode() {
+function goPortrait() {
   const y = Number(year.value)
   const m = Number(month.value)
   const d = Number(day.value)
@@ -67,7 +70,7 @@ function goDecode() {
     return
   }
   err.value = ''
-  router.push({ path: '/decode', query: { y: String(y), m: String(m), d: String(d) } })
+  router.push({ path: '/portrait', query: { y: String(y), m: String(m), d: String(d) } })
 }
 
 onMounted(async () => {
@@ -86,11 +89,11 @@ onMounted(async () => {
 .word{font-size:28px;font-weight:700;letter-spacing:.18em}
 .word span{color:var(--yxg-pri)}
 .tag{font-size:12px;color:rgba(0,0,0,.38);margin-top:6px;letter-spacing:.12em}
-.decode-card{
+.portrait-card{
   background:#fff;border-radius:20px;padding:18px 14px;text-align:center;
   box-shadow:0 8px 28px rgba(229,77,66,.12);
 }
-.decode-card h2{font-size:17px;color:var(--yxg-gold);letter-spacing:.1em}
+.portrait-card h2{font-size:17px;color:var(--yxg-gold);letter-spacing:.1em}
 .sub{font-size:12px;color:#aaa;margin:4px 0 14px}
 .row{display:flex;gap:6px;align-items:center;justify-content:center;flex-wrap:wrap}
 .row input{
@@ -106,7 +109,7 @@ onMounted(async () => {
 .head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
 .head h3{font-size:16px}
 .head a{font-size:12px;color:#bbb}
-.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px 8px}
+.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px 8px}
 .cell{display:flex;flex-direction:column;align-items:center;gap:8px;font-size:11px;color:#555}
 .icon{
   width:52px;height:52px;border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:20px;