feat: pre-request token validation, mid-stream error handling, and usage stats improvements

- Qoder: handle mid-stream errors by returning proper error Response instead of embedding in stream
- Qoder: add refreshCredentials() to validate token via quota endpoint before requests
- chatCore: validate and refresh provider tokens before sending chat requests
- chatCore: bail early with 401 on unrecoverable token refresh errors
- Usage stats: track apiKey, comboName, fallbackHistory in request details
- Dashboard: improve Combos, Endpoint, Provider, Usage, and RequestDetails pages
- API keys route: upsert logic with provider_type support
- DB repos: usageRepo query improvements, requestDetailsRepo pagination, apiKeysRepo updates

open-sse/utils/stream.js

@@ -49,7 +49,9 @@ export function createSSEStream(options = {}) {
     connectionId = null,
     body = null,
     onStreamComplete = null,
-    apiKey = null
+    apiKey = null,
+    endpoint = null,
+    comboName = null
   } = options;
 
   let buffer = "";
@@ -335,11 +337,11 @@ export function createSSEStream(options = {}) {
           }
 
           if (hasValidUsage(usage)) {
-            saveUsageStats({ provider, model, tokens: usage, connectionId, apiKey });
+            saveUsageStats({ provider, model, tokens: usage, connectionId, apiKey, endpoint, comboName });
           } else {
             appendRequestLog({ model, provider, connectionId, tokens: null, status: "200 OK" }).catch(() => { });
           }
-          
+
           // IMPORTANT: In passthrough mode we still must terminate the SSE stream.
           // Some clients (e.g. OpenClaw) expect the OpenAI-style sentinel:
           //   data: [DONE]\n\n
@@ -418,7 +420,7 @@ export function createSSEStream(options = {}) {
         }
 
         if (hasValidUsage(state?.usage)) {
-          saveUsageStats({ provider: state.provider || targetFormat, model, tokens: state.usage, connectionId, apiKey });
+          saveUsageStats({ provider: state.provider || targetFormat, model, tokens: state.usage, connectionId, apiKey, endpoint, comboName });
         } else {
           appendRequestLog({ model, provider, connectionId, tokens: null, status: "200 OK" }).catch(() => { });
         }
@@ -436,7 +438,7 @@ export function createSSEStream(options = {}) {
   });
 }
 
-export function createSSETransformStreamWithLogger(targetFormat, sourceFormat, provider = null, reqLogger = null, toolNameMap = null, model = null, connectionId = null, body = null, onStreamComplete = null, apiKey = null) {
+export function createSSETransformStreamWithLogger(targetFormat, sourceFormat, provider = null, reqLogger = null, toolNameMap = null, model = null, connectionId = null, body = null, onStreamComplete = null, apiKey = null, endpoint = null, comboName = null) {
   return createSSEStream({
     mode: STREAM_MODE.TRANSLATE,
     targetFormat,
@@ -448,11 +450,13 @@ export function createSSETransformStreamWithLogger(targetFormat, sourceFormat, p
     connectionId,
     body,
     onStreamComplete,
-    apiKey
+    apiKey,
+    endpoint,
+    comboName
   });
 }
 
-export function createPassthroughStreamWithLogger(provider = null, reqLogger = null, model = null, connectionId = null, body = null, onStreamComplete = null, apiKey = null) {
+export function createPassthroughStreamWithLogger(provider = null, reqLogger = null, model = null, connectionId = null, body = null, onStreamComplete = null, apiKey = null, endpoint = null, comboName = null) {
   return createSSEStream({
     mode: STREAM_MODE.PASSTHROUGH,
     provider,
@@ -461,6 +465,8 @@ export function createPassthroughStreamWithLogger(provider = null, reqLogger = n
     connectionId,
     body,
     onStreamComplete,
-    apiKey
+    apiKey,
+    endpoint,
+    comboName
   });
 }