OpenRouter: allow any model ID instead of restricting to static catalog (#14312)

* OpenRouter: allow any model ID instead of restricting to static catalog

OpenRouter models were restricted to a hardcoded prefix list in the internal model catalog, preventing use of newly added or less common models. This change makes OpenRouter work as the pass-through proxy it is -- any valid OpenRouter model ID now resolves dynamically.

Fixes https://github.com/openclaw/openclaw/issues/5241

Changes:
- Add OpenRouter as an implicit provider in resolveImplicitProviders so models.json is populated when an API key is detected (models-config.providers.ts)
- Add a pass-through fallback in resolveModel that creates OpenRouter models on-the-fly when they aren't pre-registered in the local catalog (
model.ts
)
- Remove the static prefix filter for OpenRouter/opencode in isModernModelRef (live-model-filter.ts)

* Apply requested change for maxTokens

* Agents: remove dead helper in live model filter

* Changelog: note Joly0/main OpenRouter fix

* Changelog: fix OpenRouter entry text

---------

Co-authored-by: Vincent Koc <vincentkoc@ieee.org>

src/agents/live-model-filter.ts

@@ -33,10 +33,6 @@ function matchesExactOrPrefix(id: string, values: string[]): boolean {
   return values.some((value) => id === value || id.startsWith(value));
 }
 
-function matchesAny(id: string, values: string[]): boolean {
-  return values.some((value) => id.includes(value));
-}
-
 export function isModernModelRef(ref: ModelRef): boolean {
   const provider = ref.provider?.trim().toLowerCase() ?? "";
   const id = ref.id?.trim().toLowerCase() ?? "";
@@ -89,15 +85,9 @@ export function isModernModelRef(ref: ModelRef): boolean {
   }
 
   if (provider === "openrouter" || provider === "opencode") {
-    return matchesAny(id, [
-      ...ANTHROPIC_PREFIXES,
-      ...OPENAI_MODELS,
-      ...CODEX_MODELS,
-      ...GOOGLE_PREFIXES,
-      ...ZAI_PREFIXES,
-      ...MINIMAX_PREFIXES,
-      ...XAI_PREFIXES,
-    ]);
+    // OpenRouter/opencode are pass-through proxies; accept any model ID
+    // rather than restricting to a static prefix list.
+    return true;
   }
 
   return false;