Merge remote-tracking branch 'origin/master' into gitea/feature/end

Resolved conflicts taking origin/master (v0.5.55) as canonical, with local
features re-applied:
- runtime log level (LOG_LEVEL env + dashboard Settings → Logging, applied
  immediately and persisted across restarts)
- free/noAuth provider enable/disable toggle via providerStrategies.enabled
- parallel model testing (Test All Models / Test Selected Keys)

open-sse/translator/formats/maxTokens.js

@@ -3,9 +3,13 @@ import { DEFAULT_MAX_TOKENS, DEFAULT_MIN_TOKENS } from "../../config/runtimeConf
 /**
  * Adjust max_tokens based on request context
  * @param {object} body - Request body
+ * @param {number} [ceiling=DEFAULT_MAX_TOKENS] - Upper bound for max_tokens.
+ *   Callers with model context (e.g. openai-to-claude) pass the model's real
+ *   maxOutput so high-output models (Opus 4.8 = 128000) aren't pre-clamped to
+ *   the conservative 64000 default before the model-aware step sees them.
  * @returns {number} Adjusted max_tokens
  */
-export function adjustMaxTokens(body) {
+export function adjustMaxTokens(body, ceiling = DEFAULT_MAX_TOKENS) {
   let maxTokens = body.max_tokens || DEFAULT_MAX_TOKENS;
 
   // Auto-increase for tool calling to prevent truncated arguments (min never above max)
@@ -16,14 +20,14 @@ export function adjustMaxTokens(body) {
   }
 
   // Ensure max_tokens > thinking.budget_tokens (Claude API requirement)
-  // Claude API requires strictly greater, so add buffer instead of using DEFAULT_MAX_TOKENS
-  // which could equal budget_tokens when budget_tokens >= 64000
+  // Claude API requires strictly greater, so add buffer instead of using the
+  // ceiling which could equal budget_tokens when budget_tokens >= ceiling
   if (body.thinking?.budget_tokens && maxTokens <= body.thinking.budget_tokens) {
     maxTokens = body.thinking.budget_tokens + 1024;
   }
 
-  // Never exceed the global ceiling
-  if (maxTokens > DEFAULT_MAX_TOKENS) maxTokens = DEFAULT_MAX_TOKENS;
+  // Never exceed the ceiling
+  if (maxTokens > ceiling) maxTokens = ceiling;
 
   return maxTokens;
 }