Add managed content and keyboard usage insights

Introduce versioned official content workflows and privacy-safe keyboard analytics, while preventing repeat DeviceCheck sign-ins from incorrectly restricting eligible accounts.

admin-web/src/features/analytics/analytics-page.tsx

@@ -4,6 +4,7 @@ import {
   BrainCircuit,
   ChartNoAxesCombined,
   Gauge,
+  Keyboard,
   Repeat2,
   Sparkles,
   Target,
@@ -264,6 +265,74 @@ export function AnalyticsPage() {
         </Card>
       </section>
 
+      <section className="grid gap-6 xl:grid-cols-2" aria-label="键盘输入统计">
+        <Card className="overflow-hidden">
+          <SectionHeader
+            title="键盘中英文输入"
+            description="仅统计 OSGKeyboard 本地聚合后的手动提交字符，不包含输入内容"
+            icon={Keyboard}
+          />
+          <ComparisonBarChart
+            items={[
+              {
+                label: "中文",
+                value: data.keyboardUsage.chineseCharacters,
+                hint: `占中英文 ${optionalPercent(data.keyboardUsage.chineseSharePercent)}`,
+              },
+              {
+                label: "英文",
+                value: data.keyboardUsage.englishCharacters,
+                hint: `占中英文 ${optionalPercent(data.keyboardUsage.englishSharePercent)}`,
+              },
+              {
+                label: "其他",
+                value: data.keyboardUsage.otherCharacters,
+                hint: "数字、标点与 Emoji",
+              },
+            ]}
+            primaryLabel="提交字符数"
+            primaryTone="primary"
+          />
+          <MetricRows
+            rows={[
+              ["输入活跃用户", formatNumber(data.keyboardUsage.activeUsers)],
+              ["激活到输入转化", rateLabel(data.keyboardUsage.activationToInput)],
+              ["中文活跃用户", formatNumber(data.keyboardUsage.chineseActiveUsers)],
+              ["英文活跃用户", formatNumber(data.keyboardUsage.englishActiveUsers)],
+              ["中英双语用户", formatNumber(data.keyboardUsage.bilingualActiveUsers)],
+              ["总提交字符", formatNumber(data.keyboardUsage.totalCharacters)],
+            ]}
+          />
+        </Card>
+
+        <Card className="overflow-hidden">
+          <SectionHeader
+            title="输入会话结构"
+            description="一次键盘激活期间至少提交一个字符才计为输入会话"
+            icon={Activity}
+          />
+          <ComparisonBarChart
+            items={[
+              { label: "仅中文", value: data.keyboardUsage.chineseOnlySessions },
+              { label: "仅英文", value: data.keyboardUsage.englishOnlySessions },
+              { label: "中英混合", value: data.keyboardUsage.mixedLanguageSessions },
+              { label: "仅其他", value: data.keyboardUsage.otherOnlySessions },
+            ]}
+            primaryLabel="输入会话"
+            primaryTone="success"
+          />
+          <MetricRows
+            rows={[
+              ["输入会话总数", formatNumber(data.keyboardUsage.inputSessions)],
+              [
+                "平均每会话字符",
+                optionalDecimal(data.keyboardUsage.averageCharactersPerInputSession),
+              ],
+            ]}
+          />
+        </Card>
+      </section>
+
       <section className="grid gap-6 xl:grid-cols-3">
         <Card className="overflow-hidden">
           <SectionHeader title="付费转化" description="StoreKit 已验证交易" icon={BadgeDollarSign} />