refactor(open-sse): translator DRY + schema enums, bug fixes, dead code cleanup

- Bug B1-B7: media UI m.kind||m.type, serviceKinds, gemini mediaPriority, schema kind, models/info lookup by kind
- Dead code D1-D6: safeParseJSON, drop PROVIDER_ENDPOINTS, orphan fetcher, GITHUB_CONFIG derive, getProviderConfig internal, legacy kiro file
- Translator concerns: toOpenAIUsage, toOpenAIFinish (gemini/kiro/ollama + fix kiro tool finish), thinking effort maps
- Reorg helpers/ → concerns/ (logic) + formats/ (per-format) + schema/ (pure enums: roles/blocks/finishReasons/defaults)
- Wire ~280 hardcoded role/block/finish/default literals to schema enums across 20+ files
- collapseTextParts + extractTextContent dedup
- Normalize translator fn names to openaiToXRequest / xToOpenAIResponse
- Golden tests lock behavior; 0 regression (byte-for-byte providers/alias, 26=26 known fails)

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

src/shared/constants/config.js

@@ -62,26 +62,6 @@ export const CONSOLE_LOG_CONFIG = {
 // Client-side store TTL: how long fetched data stays fresh before re-fetching
 export const CLIENT_STORE_TTL_MS = 60000;
 
-// Provider API endpoints (for display only)
-export const PROVIDER_ENDPOINTS = {
-  openrouter: "https://openrouter.ai/api/v1/chat/completions",
-  glm: "https://api.z.ai/api/anthropic/v1/messages",
-  "glm-cn": "https://open.bigmodel.cn/api/coding/paas/v4/chat/completions",
-  kimi: "https://api.kimi.com/coding/v1/messages",
-  minimax: "https://api.minimax.io/anthropic/v1/messages",
-  "minimax-cn": "https://api.minimaxi.com/anthropic/v1/messages",
-  alicode: "https://coding.dashscope.aliyuncs.com/v1/chat/completions",
-  "alicode-intl": "https://coding-intl.dashscope.aliyuncs.com/v1/chat/completions",
-  "volcengine-ark": "https://ark.cn-beijing.volces.com/api/coding/v3/chat/completions",
-  byteplus: "https://ark.ap-southeast.bytepluses.com/api/coding/v3/chat/completions",
-  openai: "https://api.openai.com/v1/chat/completions",
-  "vercel-ai-gateway": "https://ai-gateway.vercel.sh/v1/chat/completions",
-  anthropic: "https://api.anthropic.com/v1/messages",
-  gemini: "https://generativelanguage.googleapis.com/v1beta/models",
-  ollama: "https://ollama.com/api/chat",
-  "ollama-local": "http://localhost:11434/api/chat",
-};
-
 // Re-export from providers.js for backward compatibility
 export {
   FREE_PROVIDERS,

src/shared/constants/providers.js

@@ -11,7 +11,6 @@ const MEDIA_ENTRY_KEYS = [
 // Build provider UI object from registry entry
 function buildProviderEntry(r) {
   const mediaFields = {};
-  // Support both legacy r.media wrapper and new flat top-level fields (post-migration)
   if (r.media) Object.assign(mediaFields, r.media);
   for (const k of MEDIA_ENTRY_KEYS) {
     if (r[k] !== undefined) mediaFields[k] = r[k];
@@ -21,6 +20,8 @@ function buildProviderEntry(r) {
     id: r.id,
     alias: r.uiAlias || r.alias,
     ...mediaFields,
+    ...(r.priority !== undefined ? { priority: r.priority } : {}),
+    ...(r.hasFree ? { hasFree: true } : {}),
     ...(r.thinkingConfig ? { thinkingConfig: r.thinkingConfig } : {}),
     ...(r.regions ? { regions: r.regions, defaultRegion: r.defaultRegion } : {}),
     ...(r.hasProviderSpecificData ? { hasProviderSpecificData: true } : {}),
@@ -147,7 +148,7 @@ export function getProvidersByKind(kind) {
       if (p.hiddenKinds?.includes(kind)) return false;
       return true;
     })
-    .sort((a, b) => (a.mediaPriority ?? 100) - (b.mediaPriority ?? 100));
+    .sort((a, b) => (a.priority ?? a.mediaPriority ?? 999) - (b.priority ?? b.mediaPriority ?? 999));
 }
 
 // Derive từ registry features flags