feat(presets): add Code0.ai partner preset for 7 apps

Partner aggregator (New API gateway) across Claude Code, Claude Desktop,
Codex, Gemini, OpenCode, OpenClaw, and Hermes. Claude Code, Claude
Desktop, and Gemini use the bare host (gemini-3.1-pro-preview for
Gemini); Codex, OpenCode, OpenClaw, and Hermes use /v1 with gpt-5.5.

Marks isPartner with ?source=ccswitch attribution on apiKeyUrl only
(website URL stays clean). Adds the partnerPromotion blurb in all four
locales and a sponsor row in all four READMEs. Positioned after
ClaudeAPI in the Claude Code and Claude Desktop lists (the two apps
that carry a ClaudeAPI preset). Registers the favicon-derived code0.png
icon via URL import; the README banner is normalized to the standard
1920x798 aspect ratio.

src/config/claudeDesktopProviderPresets.ts

@@ -791,6 +791,19 @@ export const claudeDesktopProviderPresets: ClaudeDesktopProviderPreset[] = [
     partnerPromotionKey: "claudeapi",
     icon: "claudeapi",
   },
+  {
+    name: "Code0",
+    websiteUrl: "https://code0.ai",
+    apiKeyUrl: "https://code0.ai?source=ccswitch",
+    category: "aggregator",
+    baseUrl: "https://code0.ai",
+    mode: "direct",
+    apiFormat: "anthropic",
+    modelRoutes: passthroughRoutes(),
+    isPartner: true,
+    partnerPromotionKey: "code0",
+    icon: "code0",
+  },
   {
     name: "ClaudeCN",
     websiteUrl: "https://claudecn.top",

src/config/claudeProviderPresets.ts

@@ -861,6 +861,21 @@ export const providerPresets: ProviderPreset[] = [
     partnerPromotionKey: "claudeapi",
     icon: "claudeapi",
   },
+  {
+    name: "Code0",
+    websiteUrl: "https://code0.ai",
+    apiKeyUrl: "https://code0.ai?source=ccswitch",
+    settingsConfig: {
+      env: {
+        ANTHROPIC_BASE_URL: "https://code0.ai",
+        ANTHROPIC_AUTH_TOKEN: "",
+      },
+    },
+    category: "aggregator",
+    isPartner: true,
+    partnerPromotionKey: "code0",
+    icon: "code0",
+  },
   {
     name: "ClaudeCN",
     websiteUrl: "https://claudecn.top",

src/config/codexProviderPresets.ts

@@ -364,6 +364,18 @@ export const codexProviderPresets: CodexProviderPreset[] = [
     endpointCandidates: ["https://api.amux.ai/v1"],
     icon: "amux",
   },
+  {
+    name: "Code0",
+    websiteUrl: "https://code0.ai",
+    apiKeyUrl: "https://code0.ai?source=ccswitch",
+    category: "aggregator",
+    auth: generateThirdPartyAuth(""),
+    config: generateThirdPartyConfig("code0", "https://code0.ai/v1", "gpt-5.5"),
+    endpointCandidates: ["https://code0.ai/v1"],
+    isPartner: true,
+    partnerPromotionKey: "code0",
+    icon: "code0",
+  },
   {
     name: "Azure OpenAI",
     websiteUrl:

src/config/geminiProviderPresets.ts

@@ -130,6 +130,24 @@ export const geminiProviderPresets: GeminiProviderPreset[] = [
     ],
     icon: "qiniu",
   },
+  {
+    name: "Code0",
+    websiteUrl: "https://code0.ai",
+    apiKeyUrl: "https://code0.ai?source=ccswitch",
+    settingsConfig: {
+      env: {
+        GOOGLE_GEMINI_BASE_URL: "https://code0.ai",
+        GEMINI_MODEL: "gemini-3.1-pro-preview",
+      },
+    },
+    baseURL: "https://code0.ai",
+    model: "gemini-3.1-pro-preview",
+    description: "Code0",
+    category: "aggregator",
+    isPartner: true,
+    partnerPromotionKey: "code0",
+    icon: "code0",
+  },
   {
     name: "PackyCode",
     websiteUrl: "https://www.packyapi.com",

src/config/hermesProviderPresets.ts

@@ -245,6 +245,25 @@ export const hermesProviderPresets: HermesProviderPreset[] = [
       model: { default: "gpt-5.5", provider: "amux" },
     },
   },
+  {
+    name: "Code0",
+    websiteUrl: "https://code0.ai",
+    apiKeyUrl: "https://code0.ai?source=ccswitch",
+    settingsConfig: {
+      name: "code0",
+      base_url: "https://code0.ai/v1",
+      api_key: "",
+      api_mode: "chat_completions",
+      models: [{ id: "gpt-5.5", name: "GPT-5.5" }],
+    },
+    category: "aggregator",
+    isPartner: true,
+    partnerPromotionKey: "code0",
+    icon: "code0",
+    suggestedDefaults: {
+      model: { default: "gpt-5.5", provider: "code0" },
+    },
+  },
   {
     name: "火山Agentplan",
     websiteUrl: "https://www.volcengine.com/product/ark",

src/config/openclawProviderPresets.ts

@@ -508,6 +508,42 @@ export const openclawProviderPresets: OpenClawProviderPreset[] = [
       },
     },
   },
+  {
+    name: "Code0",
+    websiteUrl: "https://code0.ai",
+    apiKeyUrl: "https://code0.ai?source=ccswitch",
+    settingsConfig: {
+      baseUrl: "https://code0.ai/v1",
+      apiKey: "",
+      api: "openai-completions",
+      models: [
+        {
+          id: "gpt-5.5",
+          name: "GPT-5.5",
+          contextWindow: 400000,
+        },
+      ],
+    },
+    category: "aggregator",
+    isPartner: true,
+    partnerPromotionKey: "code0",
+    icon: "code0",
+    templateValues: {
+      apiKey: {
+        label: "API Key",
+        placeholder: "",
+        editorValue: "",
+      },
+    },
+    suggestedDefaults: {
+      model: {
+        primary: "code0/gpt-5.5",
+      },
+      modelCatalog: {
+        "code0/gpt-5.5": { alias: "GPT-5.5" },
+      },
+    },
+  },
   {
     name: "Unity2.ai",
     websiteUrl: "https://unity2.ai",

src/config/opencodeProviderPresets.ts

@@ -450,6 +450,34 @@ export const opencodeProviderPresets: OpenCodeProviderPreset[] = [
       },
     },
   },
+  {
+    name: "Code0",
+    websiteUrl: "https://code0.ai",
+    apiKeyUrl: "https://code0.ai?source=ccswitch",
+    settingsConfig: {
+      npm: "@ai-sdk/openai-compatible",
+      name: "Code0",
+      options: {
+        baseURL: "https://code0.ai/v1",
+        apiKey: "",
+        setCacheKey: true,
+      },
+      models: {
+        "gpt-5.5": { name: "GPT-5.5" },
+      },
+    },
+    category: "aggregator",
+    isPartner: true,
+    partnerPromotionKey: "code0",
+    icon: "code0",
+    templateValues: {
+      apiKey: {
+        label: "API Key",
+        placeholder: "",
+        editorValue: "",
+      },
+    },
+  },
   {
     name: "火山Agentplan",
     websiteUrl: "https://www.volcengine.com/product/ark",