feat: display subscription quota for Codex OAuth provider cards

Codex OAuth (ChatGPT Plus/Pro) providers previously fell through to the
default UsageFooter branch and showed no quota at all, while Copilot and
official Codex providers already had a wham/usage-backed quota footer.

This wires up the same five-hour / seven-day tier badges for codex_oauth
provider cards by reusing the existing query_codex_quota function and
SubscriptionQuotaFooter rendering, parameterized to keep both the CLI
credential path ("codex") and the cc-switch managed OAuth path
("codex_oauth") working from a single source of truth.

- Parameterize services::subscription::query_codex_quota with tool_label
  and expired_message; promote SubscriptionQuota constructors to
  pub(crate). The CLI path keeps its existing "codex" label and the
  "re-login with Codex CLI" message; the new path passes "codex_oauth"
  and a cc-switch-specific re-login hint.
- Add a new get_codex_oauth_quota Tauri command in commands/codex_oauth.rs
  that resolves the ChatGPT account (explicit binding > default account
  > not_found), pulls a valid access_token from CodexOAuthManager
  (auto-refresh handled), and delegates to query_codex_quota.
- Extract SubscriptionQuotaFooter's render body into a pure
  SubscriptionQuotaView component (props: quota / loading / refetch /
  appIdForExpiredHint / inline). The existing SubscriptionQuotaFooter
  becomes a thin wrapper with identical props and behavior, so
  CopilotQuotaFooter and the official Claude/Codex/Gemini paths are
  untouched. This avoids duplicating ~280 lines of five-state rendering.
- Add CodexOauthQuotaFooter, a 38-line wrapper that calls the new
  useCodexOauthQuota hook and forwards to SubscriptionQuotaView.
- ProviderCard inserts an isCodexOauth branch between isCopilot and
  isOfficial, keyed off PROVIDER_TYPES.CODEX_OAUTH (newly added to
  config/constants.ts to centralize the previously scattered string).
- Frontend hook caches per (codex_oauth, accountId) so multiple cards
  bound to the same ChatGPT account share one fetch via react-query
  dedup; cards bound to different accounts get independent fetches.
- No new i18n keys: existing subscription.fiveHour / sevenDay / expired /
  refresh / queryFailed / expiredHint are reused.

src/components/providers/ProviderCard.tsx

@@ -13,6 +13,7 @@ import { ProviderIcon } from "@/components/ProviderIcon";
 import UsageFooter from "@/components/UsageFooter";
 import SubscriptionQuotaFooter from "@/components/SubscriptionQuotaFooter";
 import CopilotQuotaFooter from "@/components/CopilotQuotaFooter";
+import CodexOauthQuotaFooter from "@/components/CodexOauthQuotaFooter";
 import { PROVIDER_TYPES } from "@/config/constants";
 import { ProviderHealthBadge } from "@/components/providers/ProviderHealthBadge";
 import { FailoverPriorityBadge } from "@/components/providers/FailoverPriorityBadge";
@@ -177,6 +178,8 @@ export function ProviderCard({
   const isCopilot =
     provider.meta?.providerType === PROVIDER_TYPES.GITHUB_COPILOT ||
     provider.meta?.usage_script?.templateType === "github_copilot";
+  const isCodexOauth =
+    provider.meta?.providerType === PROVIDER_TYPES.CODEX_OAUTH;
 
   // 获取用量数据以判断是否有多套餐
   // 累加模式应用（OpenCode/OpenClaw）：使用 isInConfig 代替 isCurrent
@@ -355,6 +358,8 @@ export function ProviderCard({
             <div className="flex items-center gap-1">
               {isCopilot ? (
                 <CopilotQuotaFooter meta={provider.meta} inline={true} />
+              ) : isCodexOauth ? (
+                <CodexOauthQuotaFooter meta={provider.meta} inline={true} />
               ) : isOfficial ? (
                 <SubscriptionQuotaFooter appId={appId} inline={true} />
               ) : hasMultiplePlans ? (