refactor(open-sse): B1 consolidate media endpoint URLs into registry

- image/embed/tts/search base URLs derive from media.*Config.baseUrl /
  searchViaChat.endpoint (single source); handlers read PROVIDER_MEDIA.
- ~18 hardcoded endpoints moved: bfl/fal/stability/runway/hf/gemini/
  cloudflare/recraft/sdwebui/comfyui/nanobanana image, voyage embed,
  gemini/openrouter tts, chatSearch endpoints.
- Byte-identical: PROVIDERS 62 + alias 90 baselines, image buildUrl outputs.

Co-authored-by: Cursor <cursoragent@cursor.com>

open-sse/providers/registry/kimi.js

@@ -23,7 +23,7 @@ export default {
   },
   media: {
     serviceKinds: ["llm", "webSearch"],
-    searchViaChat: { defaultModel: "kimi-k2.5", pricingUrl: "https://platform.moonshot.ai/docs/pricing/chat" }
+    searchViaChat: { defaultModel: "kimi-k2.5", endpoint: "https://api.moonshot.cn/v1/chat/completions", pricingUrl: "https://platform.moonshot.ai/docs/pricing/chat" }
   },
   models: [
     { id: "kimi-k2.6", name: "Kimi K2.6" },