feat: 扩展 cache creation token 细分统计与 effective_input_tokens 计费逻辑

- 新增 cache_creation_ephemeral_5m/1h_input_tokens 字段，区分不同 TTL 的缓存写入 token
- 引入 effective_input_tokens（扣除 cache read 后的有效输入 token），暴露给 usage 接口
- billing 规则生成器支持 5m/1h ephemeral cache 独立定价与分级计费
- usage_mapper 增加 Claude/Anthropic 格式映射，修复 OpenAI responses 格式字段兼容性
- 迁移逻辑增强：支持 checksum 容错、applied/pending 数量日志、逐步执行信息输出
- executor 抽离 LocalExecutionRequestOutcome 类型，统一 sync/stream 路径返回语义
- provider-transport auth 层新增 complete passthrough headers 构建逻辑
- 前端 usage 类型全面补充 effective_input_tokens、cache_creation_tokens、total_input_context 字段

frontend/src/features/usage/components/UsageRecordsTable.vue

@@ -273,7 +273,7 @@
             >-</span>
             <span class="text-muted-foreground/50">|</span>
             <!-- Tokens -->
-            <span>{{ formatTokens(record.input_tokens || 0) }}/{{ formatTokens(record.output_tokens || 0) }}</span>
+            <span>{{ formatTokens(getRecordEffectiveInputTokens(record)) }}/{{ formatTokens(record.output_tokens || 0) }}</span>
           </div>
         </div>
       </div>
@@ -552,7 +552,7 @@
           <TableCell class="text-right py-4 w-[140px]">
             <div class="flex flex-col items-end text-xs gap-0.5">
               <div class="flex items-center gap-1">
-                <span>{{ formatTokens(record.input_tokens || 0) }}</span>
+                <span>{{ formatTokens(getRecordEffectiveInputTokens(record)) }}</span>
                 <span class="text-muted-foreground">/</span>
                 <span>{{ formatTokens(record.output_tokens || 0) }}</span>
               </div>
@@ -677,6 +677,7 @@ import {
 import { RefreshCcw, Search } from 'lucide-vue-next'
 import { formatTokens, formatCurrency } from '@/utils/format'
 import { formatDateTime } from '../composables'
+import { getEffectiveInputTokens } from '../token-normalization'
 import { useRowClick } from '@/composables/useRowClick'
 import { formatApiFormat } from '@/api/endpoints/types/api-format'
 import type { DateRangeParams, UsageRecord } from '../types'
@@ -777,6 +778,10 @@ function handleRowClick(event: MouseEvent, id: string) {
   emit('showDetail', id)
 }
 
+function getRecordEffectiveInputTokens(record: UsageRecord): number {
+  return getEffectiveInputTokens(record)
+}
+
 // useDebounceFn 自动处理清理，无需 onUnmounted
 
 // 判断是否应该显示格式转换信息