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/providers/forms/OpenCodeFormFields.tsx

@@ -265,7 +265,7 @@ export function OpenCodeFormFields({
   const handleModelOptionKeyChange = (
     modelKey: string,
     oldKey: string,
-    newKey: string
+    newKey: string,
   ) => {
     if (!newKey.trim() || oldKey === newKey) return;
     const model = models[modelKey];
@@ -283,7 +283,7 @@ export function OpenCodeFormFields({
   const handleModelOptionValueChange = (
     modelKey: string,
     optionKey: string,
-    value: string
+    value: string,
   ) => {
     const model = models[modelKey];
     let parsedValue: unknown;
@@ -443,7 +443,9 @@ export function OpenCodeFormFields({
                 />
                 <Input
                   value={value}
-                  onChange={(e) => handleExtraOptionValueChange(key, e.target.value)}
+                  onChange={(e) =>
+                    handleExtraOptionValueChange(key, e.target.value)
+                  }
                   placeholder={t("opencode.extraOptionValuePlaceholder", {
                     defaultValue: "600000",
                   })}
@@ -521,7 +523,7 @@ export function OpenCodeFormFields({
                     <ChevronRight
                       className={cn(
                         "h-4 w-4 transition-transform",
-                        expandedModels.has(key) && "rotate-90"
+                        expandedModels.has(key) && "rotate-90",
                       )}
                     />
                   </Button>
@@ -575,17 +577,24 @@ export function OpenCodeFormFields({
                       <>
                         {Object.entries(model.options || {}).map(
                           ([optKey, optValue]) => (
-                            <div key={optKey} className="flex items-center gap-2">
+                            <div
+                              key={optKey}
+                              className="flex items-center gap-2"
+                            >
                               <ModelOptionKeyInput
                                 optionKey={optKey}
                                 onChange={(newKey) =>
-                                  handleModelOptionKeyChange(key, optKey, newKey)
+                                  handleModelOptionKeyChange(
+                                    key,
+                                    optKey,
+                                    newKey,
+                                  )
                                 }
                                 placeholder={t(
                                   "opencode.modelOptionKeyPlaceholder",
                                   {
                                     defaultValue: "provider",
-                                  }
+                                  },
                                 )}
                               />
                               <Input
@@ -598,14 +607,14 @@ export function OpenCodeFormFields({
                                   handleModelOptionValueChange(
                                     key,
                                     optKey,
-                                    e.target.value
+                                    e.target.value,
                                   )
                                 }
                                 placeholder={t(
                                   "opencode.modelOptionValuePlaceholder",
                                   {
                                     defaultValue: '{"order": ["baseten"]}',
-                                  }
+                                  },
                                 )}
                                 className="flex-1"
                               />
@@ -621,7 +630,7 @@ export function OpenCodeFormFields({
                                 <Trash2 className="h-4 w-4" />
                               </Button>
                             </div>
-                          )
+                          ),
                         )}
                         <div className="flex items-center justify-end">
                           <Button