Revert "feat(request-details): implement observability settings and enhance request detail tracking"

This reverts commit cbabf5547c.

open-sse/utils/usageTracking.js

@@ -312,11 +312,11 @@ export function logUsage(provider, usage, model = null, connectionId = null) {
 
   // Save to usage DB
   const tokens = {
-    prompt_tokens: inTokens,
-    completion_tokens: outTokens,
-    cache_read_input_tokens: cacheRead || 0,
-    cache_creation_input_tokens: cacheCreation || 0,
-    reasoning_tokens: reasoning || 0
+    input: inTokens,
+    output: outTokens,
+    cacheRead: cacheRead || 0,
+    cacheCreation: cacheCreation || 0,
+    reasoning: reasoning || 0
   };
   saveRequestUsage({ model, provider, connectionId, tokens }).catch(() => { });
   appendRequestLog({ model, provider, connectionId, tokens, status: "200 OK" }).catch(() => { });