feat(usage): Sub2API 中转站账单查询 + 模型发现列表全选/反选 — bump to v0.7.17

- 新增 balance:sub2api：GET {base}/v1/usage 复用推理 sk- key，解析 quota /
  5h·1d·7d rate_limits / 订阅组日周月额度 / 钱包余额（USD）
- detect_provider 修正 codingplan.site 家族：主域=Sub2API，ai.=NewAPI
- UsageConfigModal 新增 Sub2API 模板（无需凭据，可选 Base URL 覆盖）
- ProviderEdit 模型发现列表新增 全选/取消全选/反选
- cargo test 124 通过（+6 sub2api 解析用例）、tsc 零错误

src/components/ProviderEdit.tsx

@@ -527,6 +527,18 @@ function ModelMapping({
     });
   };
 
+  const selectAllModels = () => {
+    if (!discovered) return;
+    setSelected(new Set(discovered.map((m) => m.id)));
+  };
+
+  const deselectAllModels = () => setSelected(new Set());
+
+  const invertSelection = () => {
+    if (!discovered) return;
+    setSelected((prev) => new Set(discovered.filter((m) => !prev.has(m.id)).map((m) => m.id)));
+  };
+
   const handleAddSelected = () => {
     if (!discovered || selected.size === 0) return;
     const existingIds = new Set(models.filter((m) => m.model).map((m) => m.model));
@@ -596,8 +608,33 @@ function ModelMapping({
 
       {discovered && (
         <div className="bg-panel border border-border rounded-xl p-4 space-y-3">
-          <div className="text-sm font-medium">
-            {t("discoveredModels", { count: discovered.length })}
+          <div className="flex items-center justify-between">
+            <div className="text-sm font-medium">
+              {t("discoveredModels", { count: discovered.length })}
+            </div>
+            <div className="flex items-center gap-1">
+              <button
+                type="button"
+                onClick={selectAllModels}
+                className="px-2 py-0.5 text-xs border border-border rounded hover:bg-hover-2 text-content-primary transition-colors"
+              >
+                {t("selectAll")}
+              </button>
+              <button
+                type="button"
+                onClick={deselectAllModels}
+                className="px-2 py-0.5 text-xs border border-border rounded hover:bg-hover-2 text-content-primary transition-colors"
+              >
+                {t("deselectAll")}
+              </button>
+              <button
+                type="button"
+                onClick={invertSelection}
+                className="px-2 py-0.5 text-xs border border-border rounded hover:bg-hover-2 text-content-primary transition-colors"
+              >
+                {t("invertSelection")}
+              </button>
+            </div>
           </div>
           <label className="flex items-center gap-2 text-sm text-content-primary cursor-pointer">
             <input

src/components/UsageConfigModal.tsx

@@ -30,12 +30,13 @@ interface UsageConfigModalProps {
 }
 
 const TEMPLATES: ReadonlyArray<{
-  id: "auto" | "newapi";
+  id: "auto" | "newapi" | "sub2api";
   labelKey: TranslationKey;
   hintKey: TranslationKey;
 }> = [
   { id: "auto", labelKey: "usageTemplateAuto", hintKey: "usageAutoDetectHint" },
   { id: "newapi", labelKey: "usageTemplateNewapi", hintKey: "usageNewapiHint" },
+  { id: "sub2api", labelKey: "usageTemplateSub2api", hintKey: "usageSub2apiHint" },
 ];
 
 function defaultConfig(provider: Provider): UsageConfig {
@@ -225,7 +226,9 @@ export function UsageConfigModal({ open, agent, provider, onClose, onSave }: Usa
                     <p className="text-xs text-content-muted">
                       {cfg.templateType === "newapi"
                         ? t("usageNewapiHint")
-                        : t("usageAutoDetectHint")}
+                        : cfg.templateType === "sub2api"
+                          ? t("usageSub2apiHint")
+                          : t("usageAutoDetectHint")}
                     </p>
                   </>
                 )}
@@ -237,9 +240,9 @@ export function UsageConfigModal({ open, agent, provider, onClose, onSave }: Usa
                     <span className="text-blue-500">{"{{baseUrl}}"}</span>
                     <span className="text-content-muted">=</span>
                     <span className="text-content-primary break-all">
-                      {cfg.templateType === "newapi"
-                        ? cfg.baseUrl || provider.base_url || "-"
-                        : provider.base_url || "-"}
+                      {cfg.templateType === "auto"
+                        ? provider.base_url || "-"
+                        : cfg.baseUrl || provider.base_url || "-"}
                     </span>
                   </div>
                   <div className="flex items-center gap-2 text-xs font-mono">
@@ -344,6 +347,21 @@ export function UsageConfigModal({ open, agent, provider, onClose, onSave }: Usa
                     </div>
                   </div>
                 )}
+                {/* sub2api: no extra credentials (reuses the inference key), optional gateway override */}
+                {!isManaged && cfg.templateType === "sub2api" && (
+                  <div className="space-y-3">
+                    <div>
+                      <label className="block text-sm text-content-muted mb-1.5">{t("usageBaseUrl")}</label>
+                      <input
+                        type="text"
+                        className="w-full bg-input border border-border rounded-lg px-3 py-2 text-sm focus:ring-2 focus:ring-blue-500 focus:outline-none"
+                        value={cfg.baseUrl ?? ""}
+                        placeholder={provider.base_url ?? "https://your-sub2api-site.com"}
+                        onChange={(e) => setCfg({ ...cfg, baseUrl: e.target.value || undefined })}
+                      />
+                    </div>
+                  </div>
+                )}
               </div>
 
               {/* timeout + auto query interval */}