feat(tray): show cached provider usage in the system tray menu (#2184)

* feat: add Rust-side write-through usage cache

Introduce an in-memory UsageCache on AppState that the existing usage
query commands populate on success. The cache is read-only to the rest
of the app today; the next commit consumes it from the tray menu.

- New services::usage_cache module with split maps: subscription keyed
  by AppType, script keyed by (AppType, provider_id).
- AppType gains Eq + Hash so it can be used as a HashMap key.
- commands::subscription::get_subscription_quota now takes State<AppState>
  and writes through on success (signature change is invisible to the
  frontend — Tauri injects State automatically).
- commands::provider::queryProviderUsage body extracted into an inner
  async fn; the public command wraps it with write-through, covering
  Copilot, coding-plan, balance, and generic script paths uniformly.

Cache is in-memory only; auto-query interval and the upcoming tray
refresh action rebuild it after restarts.

* feat(tray): surface cached usage in the system tray menu

Read UsageCache populated by the previous commit and render it in three
places, scoped to whatever TRAY_SECTIONS covers (Claude/Codex/Gemini):

1. Inline suffix on each provider submenu item
   "AnyProvider  · 🟢 5h 18% / 7d 23%"
2. Disabled summary row per visible app under "Show Main"
   "Claude · Anthropic Official · 🟢 5h 18% / 7d 23%"
3. "Refresh all usage" menu item that triggers get_subscription_quota +
   queryProviderUsage for every applicable provider, then rebuilds the
   tray menu via the existing refresh_tray_menu path.

Color encoding uses emoji (🟢 <70% / 🟠 70-89% / 🔴 ≥90%) since Tauri 2
tray labels are plain text. Missing cache entry leaves the label
unchanged — tray never issues network requests when opened. Three new
i18n-ready strings live in TrayTexts (en/zh/ja), following the existing
pattern for tray text.

Closes #2178.

* feat(usage): bridge tray UsageCache writes to frontend React Query

Why: tray hover triggers backend-only refresh that wrote to UsageCache but
never notified the frontend, leaving main UI stale while tray showed fresh
numbers. Emit a payload-carrying event after each cache write so React Query
can setQueryData directly, keeping both views in sync without duplicate fetches.

* fix(tray): skip hidden apps on hover refresh and drop stale disabled-script cache

Address P2 findings from automated review on #2184:

1. refresh_all_usage_in_tray now filters TRAY_SECTIONS by settings.visible_apps
   before scheduling subscription/script queries, matching create_tray_menu and
   preventing wasted external API calls (and rate-limit/auth-error log noise)
   for apps the user has hidden.

2. format_usage_suffix only trusts the script cache when provider.meta.usage_script
   is still enabled; when a script is disabled/removed the cached suffix is now
   invalidated so the tray label no longer shows stale data indefinitely.

* refactor: consolidate codex provider helpers and fix test semantics

- Add Provider::is_codex_oauth() and Provider::codex_fast_mode_enabled()
  to eliminate duplicated meta extraction in claude.rs and stream_check.rs
- Fix non-codex-oauth tests to pass codex_fast_mode=false (was true, harmless
  but semantically misleading)
- Remove redundant is_dir() guard after resolve_skill_source_dir already
  guarantees the returned path is a directory

* style: apply cargo fmt

* fix(tray): reflect failed refreshes in cache and support Gemini flash-lite

Follow-up to the tray usage-display feature addressing review feedback:

- Write snapshots for both Ok(success:false) and Err paths in
  queryProviderUsage / get_subscription_quota so stale success data
  no longer persists across failed refreshes; the original Err is
  still returned to the frontend onError handler.
- Include gemini_flash_lite tier in the tray summary with label "l".
  Matches the frontend SubscriptionQuotaFooter and keeps the worst
  emoji correct when lite is the highest utilization.
- Add TIER_GEMINI_PRO / _FLASH / _FLASH_LITE constants in
  services/subscription.rs and reuse them in classify_gemini_model
  and sort_order.
- Extract Provider::has_usage_script_enabled() to remove the
  duplicated meta.usage_script chain at two call sites.
- Use db.get_provider_by_id in refresh_all_usage_in_tray instead of
  materialising the full provider map, and parallelise subscription
  and script futures via futures::future::join.
- Narrow refresh_all_usage_in_tray to each section's effective
  current provider (script if enabled, else subscription when the
  provider is official). Hover refreshes now issue at most
  TRAY_SECTIONS.len() outbound requests.
- Add 10 unit tests in tray::tests covering Claude/Codex h/w dispatch,
  Gemini p/f/l dispatch (including lite-only and lite-worst cases),
  and success/failure guards.

---------

Co-authored-by: Jason <farion1231@gmail.com>

src-tauri/src/commands/provider.rs

@@ -1,5 +1,5 @@
 use indexmap::IndexMap;
-use tauri::State;
+use tauri::{Emitter, State};
 
 use crate::app_config::AppType;
 use crate::commands::copilot::CopilotAuthState;
@@ -153,19 +153,55 @@ pub fn import_default_config(state: State<'_, AppState>, app: String) -> Result<
 #[allow(non_snake_case)]
 #[tauri::command]
 pub async fn queryProviderUsage(
+    app_handle: tauri::AppHandle,
     state: State<'_, AppState>,
     copilot_state: State<'_, CopilotAuthState>,
     #[allow(non_snake_case)] providerId: String, // 使用 camelCase 匹配前端
     app: String,
 ) -> Result<crate::provider::UsageResult, String> {
     let app_type = AppType::from_str(&app).map_err(|e| e.to_string())?;
+    // inner 可能以两种形式失败：
+    //   1) 返回 Ok(UsageResult { success: false, .. }) —— 业务失败（401、脚本报错等）
+    //   2) 返回 Err(String) —— RPC/DB/Copilot fetch_usage 等 transport 层失败
+    // 两种都要把"失败"写进 UsageCache 并刷新托盘，让 format_script_summary 的
+    // success 守卫生效、suffix 自然消失，避免旧 success 快照长期滞留。
+    // 同时保持原始 Err 返回给前端 React Query 的 onError 回调，不吞错误。
+    let inner =
+        query_provider_usage_inner(&state, &copilot_state, app_type.clone(), &providerId).await;
+    let snapshot = match &inner {
+        Ok(r) => r.clone(),
+        Err(err_msg) => crate::provider::UsageResult {
+            success: false,
+            data: None,
+            error: Some(err_msg.clone()),
+        },
+    };
+    let payload = serde_json::json!({
+        "kind": "script",
+        "appType": app_type.as_str(),
+        "providerId": &providerId,
+        "data": &snapshot,
+    });
+    if let Err(e) = app_handle.emit("usage-cache-updated", payload) {
+        log::error!("emit usage-cache-updated (script) 失败: {e}");
+    }
+    state.usage_cache.put_script(app_type, providerId, snapshot);
+    crate::tray::schedule_tray_refresh(&app_handle);
+    inner
+}
 
+async fn query_provider_usage_inner(
+    state: &AppState,
+    copilot_state: &CopilotAuthState,
+    app_type: AppType,
+    provider_id: &str,
+) -> Result<crate::provider::UsageResult, String> {
     // 从数据库读取供应商信息，检查特殊模板类型
     let providers = state
         .db
         .get_all_providers(app_type.as_str())
         .map_err(|e| format!("Failed to get providers: {e}"))?;
-    let provider = providers.get(&providerId);
+    let provider = providers.get(provider_id);
     let usage_script = provider
         .and_then(|p| p.meta.as_ref())
         .and_then(|m| m.usage_script.as_ref());
@@ -294,7 +330,7 @@ pub async fn queryProviderUsage(
     }
 
     // ── 通用 JS 脚本路径 ──
-    ProviderService::query_usage(state.inner(), app_type, &providerId)
+    ProviderService::query_usage(state, app_type, provider_id)
         .await
         .map_err(|e| e.to_string())
 }
@@ -406,7 +442,7 @@ pub fn update_providers_sort_order(
 
 use crate::provider::UniversalProvider;
 use std::collections::HashMap;
-use tauri::{AppHandle, Emitter};
+use tauri::AppHandle;
 
 #[derive(Clone, serde::Serialize)]
 pub struct UniversalProviderSyncedEvent {

src-tauri/src/commands/subscription.rs

@@ -1,10 +1,41 @@
-use crate::services::subscription::SubscriptionQuota;
+use std::str::FromStr;
+use tauri::{Emitter, State};
+
+use crate::app_config::AppType;
+use crate::services::subscription::{CredentialStatus, SubscriptionQuota};
+use crate::store::AppState;
 
 /// 查询官方订阅额度
 ///
 /// 读取 CLI 工具已有的 OAuth 凭据并调用官方 API 获取使用额度。
-/// 不需要 AppState（不访问数据库），直接读文件 + 发 HTTP。
+/// 结果（无论业务失败还是 transport 层 Err）都会写入 `UsageCache`、通知托盘
+/// 刷新，并 emit `usage-cache-updated`，让前端 React Query 与托盘共享同一份
+/// 最新数据。失败快照写入后 `format_subscription_summary` 会通过 `success=false`
+/// 守卫返回 `None`，托盘 suffix 自然消失，避免长期滞留旧配额数字。
+/// Err 原样向前端返回，React Query 的 onError 不会被吞掉。
 #[tauri::command]
-pub async fn get_subscription_quota(tool: String) -> Result<SubscriptionQuota, String> {
-    crate::services::subscription::get_subscription_quota(&tool).await
+pub async fn get_subscription_quota(
+    app: tauri::AppHandle,
+    state: State<'_, AppState>,
+    tool: String,
+) -> Result<SubscriptionQuota, String> {
+    let inner = crate::services::subscription::get_subscription_quota(&tool).await;
+    let snapshot = match &inner {
+        Ok(q) => q.clone(),
+        // transport 层 Err —— 凭据状态不明，用 Valid 表达"凭据没问题，是通信/parse 出错"。
+        Err(err_msg) => SubscriptionQuota::error(&tool, CredentialStatus::Valid, err_msg.clone()),
+    };
+    if let Ok(app_type) = AppType::from_str(&tool) {
+        let payload = serde_json::json!({
+            "kind": "subscription",
+            "appType": app_type.as_str(),
+            "data": &snapshot,
+        });
+        if let Err(e) = app.emit("usage-cache-updated", payload) {
+            log::error!("emit usage-cache-updated (subscription) 失败: {e}");
+        }
+        state.usage_cache.put_subscription(app_type, snapshot);
+        crate::tray::schedule_tray_refresh(&app);
+    }
+    inner
 }