feat: add Hermes frontend types, API layer, and hooks (Phase 7)

- Add "hermes" to AppId union type and all exhaustive Record<AppId>
- Add HermesModelConfig, HermesAgentConfig, HermesEnvConfig types
- Add hermes field to VisibleApps, McpApps, ProxyTakeoverStatus
- Create src/lib/api/hermes.ts with Tauri invoke wrappers
- Create src/hooks/useHermes.ts with 5 query + 3 mutation hooks
- Register hermes in APP_IDS, APP_ICON_MAP (violet color scheme)
- Split MCP_SKILLS_APP_IDS into MCP_APP_IDS (includes hermes) and
  SKILLS_APP_IDS (excludes hermes, since Hermes has no Skills support)
- Wire hermes additive-mode into App.tsx (remove/duplicate handlers),
  ProviderList.tsx (live provider ID query + In Config badge),
  mutations.ts (cache invalidation on switch/add/delete)
- Add Hermes checkbox to McpFormModal
- Add basic hermes i18n keys (en/zh/ja)

src/config/appConfig.tsx

@@ -21,16 +21,20 @@ export const APP_IDS: AppId[] = [
   "gemini",
   "opencode",
   "openclaw",
+  "hermes",
 ];
 
-/** App IDs shown in MCP & Skills panels (excludes OpenClaw) */
-export const MCP_SKILLS_APP_IDS: AppId[] = [
+/** App IDs shown in Skills panels (excludes OpenClaw and Hermes — neither supports Skills) */
+export const SKILLS_APP_IDS: AppId[] = [
   "claude",
   "codex",
   "gemini",
   "opencode",
 ];
 
+/** App IDs shown in MCP panels (excludes OpenClaw) */
+export const MCP_APP_IDS: AppId[] = [...SKILLS_APP_IDS, "hermes"];
+
 export const APP_ICON_MAP: Record<AppId, AppConfig> = {
   claude: {
     label: "Claude",
@@ -79,4 +83,19 @@ export const APP_ICON_MAP: Record<AppId, AppConfig> = {
     badgeClass:
       "bg-rose-500/10 text-rose-700 dark:text-rose-300 hover:bg-rose-500/20 border-0 gap-1.5",
   },
+  hermes: {
+    label: "Hermes",
+    icon: (
+      <ProviderIcon
+        icon="hermes"
+        name="Hermes"
+        size={14}
+        showFallback={false}
+      />
+    ),
+    activeClass:
+      "bg-violet-500/10 ring-1 ring-violet-500/20 hover:bg-violet-500/20 text-violet-600 dark:text-violet-400",
+    badgeClass:
+      "bg-violet-500/10 text-violet-700 dark:text-violet-300 hover:bg-violet-500/20 border-0 gap-1.5",
+  },
 };