Feat/provider individual config (#663)

* refactor(ui): simplify UpdateBadge to minimal dot indicator

* feat(provider): add individual test and proxy config for providers

Add support for provider-specific model test and proxy configurations:

- Add ProviderTestConfig and ProviderProxyConfig types in Rust and TypeScript
- Create ProviderAdvancedConfig component with collapsible panels
- Update stream_check service to merge provider config with global config
- Proxy config UI follows global proxy style (single URL input)

Provider-level configs stored in meta field, no database schema changes needed.

* feat(ui): add failover toggle and improve proxy controls

- Add FailoverToggle component with slide animation
- Simplify ProxyToggle style to match FailoverToggle
- Add usage statistics button when proxy is active
- Fix i18n parameter passing for failover messages
- Add missing failover translation keys (inQueue, addQueue, priority)
- Replace AboutSection icon with app logo

* fix(proxy): support system proxy fallback and provider-level proxy config

- Remove no_proxy() calls in http_client.rs to allow system proxy fallback
- Add get_for_provider() to build HTTP client with provider-specific proxy
- Update forwarder.rs and stream_check.rs to use provider proxy config
- Fix EditProviderDialog.tsx to include provider.meta in useMemo deps
- Add useEffect in ProviderAdvancedConfig.tsx to sync expand state

Fixes #636
Fixes #583

* fix(ui): sync toast theme with app setting

* feat(settings): add log config management

Fixes #612
Fixes #514

* fix(proxy): increase request body size limit to 200MB

Fixes #666

* docs(proxy): update timeout config descriptions and defaults

Fixes #612

* fix(proxy): filter x-goog-api-key header to prevent duplication

* fix(proxy): prevent proxy recursion when system proxy points to localhost

Detect if HTTP_PROXY, HTTPS_PROXY, or ALL_PROXY environment variables
point to loopback addresses (localhost, 127.0.0.1), and bypass system
proxy in such cases to avoid infinite request loops.

* fix(i18n): add providerAdvanced i18n keys and fix failover toast parameter

- Add providerAdvanced.* i18n keys to en.json, zh.json, and ja.json
- Fix failover toggleFailed toast to pass detail parameter
- Remove Chinese fallback text from UI for English/Japanese users

* fix(tray): restore tray-provider events and enable Auto failover properly

- Emit provider-switched event on tray provider click (backward compatibility)
- Auto button now: starts proxy, takes over live config, enables failover

* fix(log): enable dynamic log level and single file mode

- Initialize log at Trace level for dynamic adjustment
- Change rotation strategy to KeepSome(1) for single file
- Set max file size to 1GB
- Delete old log file on startup for clean start

* fix(tray): fix clippy uninlined format args warning

Use inline format arguments: {app_type_str} instead of {}

* fix(provider): allow typing :// in endpoint URL inputs

Change input type from "url" to "text" to prevent browser
URL validation from blocking :// input.

Closes #681

* fix(stream-check): use Gemini native streaming API format

- Change endpoint from OpenAI-compatible to native streamGenerateContent
- Add alt=sse parameter for SSE format response
- Use x-goog-api-key header instead of Bearer token
- Convert request body to Gemini contents/parts format

* feat(proxy): add request logging for debugging

Add debug logs for outgoing requests including URL and body content
with byte size, matching the existing response logging format.

* fix(log): prevent usize underflow in KeepSome rotation strategy

KeepSome(n) internally computes n-2, so n=1 causes underflow.
Use KeepSome(2) as the minimum safe value.

src/components/UpdateBadge.tsx

@@ -1,6 +1,6 @@
-import { X, Download } from "lucide-react";
 import { useUpdate } from "@/contexts/UpdateContext";
 import { useTranslation } from "react-i18next";
+import { Button } from "@/components/ui/button";
 
 interface UpdateBadgeProps {
   className?: string;
@@ -8,56 +8,39 @@ interface UpdateBadgeProps {
 }
 
 export function UpdateBadge({ className = "", onClick }: UpdateBadgeProps) {
-  const { hasUpdate, updateInfo, isDismissed, dismissUpdate } = useUpdate();
+  const { hasUpdate, updateInfo } = useUpdate();
   const { t } = useTranslation();
+  const isActive = hasUpdate && updateInfo;
+  const title = isActive
+    ? t("settings.updateAvailable", {
+        version: updateInfo?.availableVersion ?? "",
+      })
+    : t("settings.checkForUpdates");
 
-  // 如果没有更新或已关闭，不显示
-  if (!hasUpdate || isDismissed || !updateInfo) {
+  if (!isActive) {
     return null;
   }
 
   return (
-    <div
+    <Button
+      type="button"
+      variant="ghost"
+      size="icon"
+      title={title}
+      aria-label={title}
+      onClick={onClick}
       className={`
-        flex items-center gap-1.5 px-2.5 py-1
-        bg-white dark:bg-gray-800
-        border border-border-default 
-        rounded-lg text-xs
-        shadow-sm
-        transition-all duration-200
-        ${onClick ? "cursor-pointer hover:bg-gray-50 dark:hover:bg-gray-750" : ""}
+        relative h-6 w-6 rounded-full
+        ${isActive ? "text-blue-600 dark:text-blue-300 hover:bg-blue-50 dark:hover:bg-blue-500/10" : "text-muted-foreground hover:bg-muted/60"}
         ${className}
       `}
-      role={onClick ? "button" : undefined}
-      tabIndex={onClick ? 0 : -1}
-      onClick={onClick}
-      onKeyDown={(e) => {
-        if (!onClick) return;
-        if (e.key === "Enter" || e.key === " ") {
-          e.preventDefault();
-          onClick();
-        }
-      }}
     >
-      <Download className="w-3 h-3 text-blue-500 dark:text-blue-400" />
-      <span className="text-gray-700 dark:text-gray-300 font-medium">
-        {t("settings.updateBadge")}
-      </span>
-      <button
-        onClick={(e) => {
-          e.stopPropagation();
-          dismissUpdate();
-        }}
-        className="
-          ml-1 -mr-0.5 p-0.5 rounded
-          hover:bg-gray-100 dark:hover:bg-gray-700
-          transition-colors
-          focus:outline-none focus:ring-2 focus:ring-blue-500/20
-        "
-        aria-label={t("common.close")}
-      >
-        <X className="w-3 h-3 text-muted-foreground" />
-      </button>
-    </div>
+      <span
+        className={`
+          absolute inset-0 m-auto h-2 w-2 rounded-full ring-1 ring-background
+          ${isActive ? "bg-blue-500 dark:bg-blue-400" : "bg-blue-300/70 dark:bg-blue-300/60"}
+        `}
+      />
+    </Button>
   );
 }