chore(partners): remove DDSHub partner integration

Remove DDSHub from all provider presets (Claude, Claude Desktop, Codex, Hermes),
i18n files (zh/en/ja), README docs, and icon system. Physical assets retained for
potential future restoration.

src/icons/extracted/index.ts

@@ -1,7 +1,6 @@
 // Auto-generated icon index
 // Do not edit manually
 
-import _dds from "./dds.svg?url";
 import _eflowcode from "./eflowcode.png";
 import _hermes from "./hermes.png";
 import _lemondata from "./lemondata.png";
@@ -81,7 +80,6 @@ export const icons: Record<string, string> = {
 };
 
 export const iconUrls: Record<string, string> = {
-  dds: _dds,
   eflowcode: _eflowcode,
   hermes: _hermes,
   lemondata: _lemondata,

src/icons/extracted/metadata.ts

@@ -107,13 +107,6 @@ export const iconMetadata: Record<string, IconMetadata> = {
     keywords: ["cubence", "api", "relay"],
     defaultColor: "#4B5563",
   },
-  dds: {
-    name: "dds",
-    displayName: "DDS",
-    category: "other",
-    keywords: [],
-    defaultColor: "currentColor",
-  },
   deepseek: {
     name: "deepseek",
     displayName: "DeepSeek",