chore(presets): refresh sponsor domains and referral links

- PackyCode: packyapi.com -> www.packyapi.ai across all 8 app presets;
  drop the api-slb.packyapi.com endpoint candidate
- RightCode: right.codes -> www.rightapi.ai across 7 app presets, keeping
  the /claude and /codex/v1 path split and adding the www prefix that the
  Codex-side endpoints were missing
- ClaudeAPI: site -> www.apito.ai, referral -> console.apito.ai/agent/...,
  endpoint -> gw.apito.ai (Claude Code and Claude Desktop only)
- APINebula: apinebula.com -> apinebula.ai across all 8 app presets,
  including the endpoint inside the Codex config.toml template
- SudoCode.chat: referral link only, /register -> /sign-up with new aff
  and utm parameters (7 app presets); SudoCode.us is a different company
  and is untouched

READMEs (en/zh/ja/de) carry the same URL updates. Brand names, icons,
i18n promo keys and README copy are deliberately unchanged.

src/config/codexProviderPresets.ts

@@ -196,19 +196,16 @@ export const codexProviderPresets: CodexProviderPreset[] = [
   },
   {
     name: "PackyCode",
-    websiteUrl: "https://www.packyapi.com",
-    apiKeyUrl: "https://www.packyapi.com/register?aff=cc-switch",
+    websiteUrl: "https://www.packyapi.ai",
+    apiKeyUrl: "https://www.packyapi.ai/register?aff=cc-switch",
     category: "third_party",
     auth: generateThirdPartyAuth(""),
     config: generateThirdPartyConfig(
       "packycode",
-      "https://www.packyapi.com/v1",
+      "https://www.packyapi.ai/v1",
       "gpt-5.5",
     ),
-    endpointCandidates: [
-      "https://www.packyapi.com/v1",
-      "https://api-slb.packyapi.com/v1",
-    ],
+    endpointCandidates: ["https://www.packyapi.ai/v1"],
     isPartner: true, // 合作伙伴
     partnerPromotionKey: "packycode", // 促销信息 i18n key
     icon: "packycode",
@@ -231,8 +228,8 @@ export const codexProviderPresets: CodexProviderPreset[] = [
   },
   {
     name: "APINebula",
-    websiteUrl: "https://apinebula.com",
-    apiKeyUrl: "https://apinebula.com/VjM74M",
+    websiteUrl: "https://apinebula.ai",
+    apiKeyUrl: "https://apinebula.ai/VjM74M",
     category: "third_party",
     auth: generateThirdPartyAuth(""),
     config: `model_provider = "custom"
@@ -243,10 +240,10 @@ disable_response_storage = true
 
 [model_providers.custom]
 name = "APINebula"
-base_url = "https://apinebula.com/v1"
+base_url = "https://apinebula.ai/v1"
 wire_api = "responses"
 requires_openai_auth = true`,
-    endpointCandidates: ["https://apinebula.com/v1"],
+    endpointCandidates: ["https://apinebula.ai/v1"],
     apiFormat: "openai_responses",
     isPartner: true,
     partnerPromotionKey: "apinebula",
@@ -744,12 +741,12 @@ requires_openai_auth = true`,
   },
   {
     name: "RightCode",
-    websiteUrl: "https://www.right.codes",
-    apiKeyUrl: "https://www.right.codes/register?aff=CCSWITCH",
+    websiteUrl: "https://www.rightapi.ai",
+    apiKeyUrl: "https://www.rightapi.ai/register?aff=CCSWITCH",
     auth: generateThirdPartyAuth(""),
     config: generateThirdPartyConfig(
       "rightcode",
-      "https://right.codes/codex/v1",
+      "https://www.rightapi.ai/codex/v1",
       "gpt-5.5",
     ),
     category: "third_party",
@@ -851,7 +848,7 @@ requires_openai_auth = true`,
     name: "SudoCode.chat",
     websiteUrl: "https://sudocode.chat",
     apiKeyUrl:
-      "https://sudocode.chat/register?utm_source=ccswitch&utm_medium=partner",
+      "https://sudocode.chat/sign-up?aff=CC-SWITCH&utm_source=cc-switch&utm_medium=sponsor&utm_campaign=ccswitch",
     category: "third_party",
     auth: generateThirdPartyAuth(""),
     config: `model_provider = "custom"