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/handlers/imageProviders/blackForestLabs.js

@@ -1,7 +1,8 @@
 // Black Forest Labs (FLUX) — async submit + polling_url
 import { sleep, nowSec, POLL_INTERVAL_MS, POLL_TIMEOUT_MS } from "./_base.js";
+import { PROVIDER_MEDIA } from "../../providers/index.js";
 
-const BASE_URL = "https://api.bfl.ai/v1";
+const BASE_URL = PROVIDER_MEDIA["black-forest-labs"]?.imageConfig?.baseUrl;
 
 export default {
   async: true,

open-sse/handlers/imageProviders/cloudflareAi.js

@@ -1,6 +1,7 @@
 import { nowSec, urlToBase64 } from "./_base.js";
+import { PROVIDER_MEDIA } from "../../providers/index.js";
 
-const BASE_URL = "https://api.cloudflare.com/client/v4/accounts";
+const BASE_URL = PROVIDER_MEDIA["cloudflare-ai"]?.imageConfig?.baseUrl;
 
 const MULTIPART_MODELS = new Set([
   "@cf/black-forest-labs/flux-2-dev",

open-sse/handlers/imageProviders/comfyui.js

@@ -1,7 +1,11 @@
 // ComfyUI — local, noAuth (placeholder; full graph workflow not implemented)
+import { PROVIDER_MEDIA } from "../../providers/index.js";
+
+const BASE_URL = PROVIDER_MEDIA["comfyui"]?.imageConfig?.baseUrl;
+
 export default {
   noAuth: true,
-  buildUrl: () => "http://localhost:8188",
+  buildUrl: () => BASE_URL,
   buildHeaders: () => ({ "Content-Type": "application/json" }),
   buildBody: (_model, body) => ({ prompt: body.prompt }),
   normalize: (responseBody) => responseBody,

open-sse/handlers/imageProviders/falAi.js

@@ -1,7 +1,8 @@
 // Fal.ai — async submit + queue polling
 import { sleep, nowSec, sizeToAspectRatio, POLL_INTERVAL_MS, POLL_TIMEOUT_MS } from "./_base.js";
+import { PROVIDER_MEDIA } from "../../providers/index.js";
 
-const BASE_URL = "https://queue.fal.run";
+const BASE_URL = PROVIDER_MEDIA["fal-ai"]?.imageConfig?.baseUrl;
 
 export default {
   async: true,

open-sse/handlers/imageProviders/gemini.js

@@ -1,7 +1,8 @@
 // Google Gemini adapter (Nano Banana models)
 import { nowSec } from "./_base.js";
+import { PROVIDER_MEDIA } from "../../providers/index.js";
 
-const BASE_URL = "https://generativelanguage.googleapis.com/v1beta/models";
+const BASE_URL = PROVIDER_MEDIA["gemini"]?.imageConfig?.baseUrl;
 
 export default {
   buildUrl: (model, creds) => {

open-sse/handlers/imageProviders/huggingface.js

@@ -1,7 +1,8 @@
 // HuggingFace Inference API — returns binary image
 import { nowSec } from "./_base.js";
+import { PROVIDER_MEDIA } from "../../providers/index.js";
 
-const BASE_URL = "https://api-inference.huggingface.co/models";
+const BASE_URL = PROVIDER_MEDIA["huggingface"]?.imageConfig?.baseUrl;
 
 export default {
   buildUrl: (model) => `${BASE_URL}/${model}`,

open-sse/handlers/imageProviders/nanobanana.js

@@ -1,8 +1,10 @@
 // NanoBanana API — async submit + poll record-info
 import { sleep, nowSec, sizeToAspectRatio, POLL_INTERVAL_MS, POLL_TIMEOUT_MS } from "./_base.js";
+import { PROVIDER_MEDIA } from "../../providers/index.js";
 
-const SUBMIT_URL = "https://api.nanobananaapi.ai/api/v1/nanobanana/generate";
-const POLL_BASE = "https://api.nanobananaapi.ai/api/v1/nanobanana/record-info";
+const IMG_CFG = PROVIDER_MEDIA["nanobanana"]?.imageConfig || {};
+const SUBMIT_URL = IMG_CFG.baseUrl;
+const POLL_BASE = IMG_CFG.pollUrl;
 
 export default {
   async: true,

open-sse/handlers/imageProviders/openai.js

@@ -1,13 +1,8 @@
 // OpenAI-compatible adapter (used by openai, minimax, openrouter, recraft)
 import { PROVIDER_MEDIA } from "../../providers/index.js";
 
-// media-only providers without a registry file keep their URL here; rest derive from registry media.imageConfig.baseUrl
-const ENDPOINTS = {
-  recraft: "https://external.api.recraft.ai/v1/images/generations",
-};
-
 const imageCfg = (id) => PROVIDER_MEDIA[id]?.imageConfig || {};
-const imageUrl = (id) => imageCfg(id).baseUrl || ENDPOINTS[id];
+const imageUrl = (id) => imageCfg(id).baseUrl;
 
 export default function createOpenAIAdapter(providerId) {
   const cfg = imageCfg(providerId);

open-sse/handlers/imageProviders/runwayml.js

@@ -1,7 +1,8 @@
 // Runway ML — async submit + /tasks/{id} polling
 import { sleep, nowSec, sizeToAspectRatio, POLL_INTERVAL_MS, POLL_TIMEOUT_MS } from "./_base.js";
+import { PROVIDER_MEDIA } from "../../providers/index.js";
 
-const BASE_URL = "https://api.dev.runwayml.com/v1";
+const BASE_URL = PROVIDER_MEDIA["runwayml"]?.imageConfig?.baseUrl;
 
 export default {
   async: true,

open-sse/handlers/imageProviders/sdwebui.js

@@ -1,9 +1,12 @@
 // SD WebUI (AUTOMATIC1111) — local, noAuth
 import { nowSec } from "./_base.js";
+import { PROVIDER_MEDIA } from "../../providers/index.js";
+
+const BASE_URL = PROVIDER_MEDIA["sdwebui"]?.imageConfig?.baseUrl;
 
 export default {
   noAuth: true,
-  buildUrl: () => "http://localhost:7860/sdapi/v1/txt2img",
+  buildUrl: () => BASE_URL,
   buildHeaders: () => ({ "Content-Type": "application/json" }),
   buildBody: (_model, body) => {
     const { prompt, n = 1, size = "1024x1024" } = body;

open-sse/handlers/imageProviders/stabilityAi.js

@@ -1,7 +1,8 @@
 // Stability AI v2 — sync, returns { image: "<b64>" }
 import { nowSec, sizeToAspectRatio } from "./_base.js";
+import { PROVIDER_MEDIA } from "../../providers/index.js";
 
-const BASE_URL = "https://api.stability.ai/v2beta/stable-image/generate";
+const BASE_URL = PROVIDER_MEDIA["stability-ai"]?.imageConfig?.baseUrl;
 
 // Map model id → endpoint segment
 function modelToEndpoint(model) {