fix(kiro): normalize dashboard thinking intensity models

Strip the generic dashboard model(level) suffix before resolving Kiro
synthetic -thinking/-agentic variants so the upstream request no longer
carries an invalid parenthesized model id. Map explicit levels to native
Kiro effort fields only for supported Claude/GPT model families, and stop
advertising native levels for unsupported legacy Kiro models. Applies to
both OpenAI→Kiro and direct Claude→Kiro routes.

open-sse/providers/thinkingLevels.js

@@ -2,6 +2,7 @@
 // Reuses capabilities.js (thinkingFormat/canDisable) so this file only maps format→levels (DRY).
 import { getCapabilitiesForModel } from "./capabilities.js";
 import { matchPattern } from "./pricing.js";
+import { resolveKiroEffortPath } from "../config/kiroConstants.js";
 
 // Shared level sets (deduped) — verified against provider docs + wire in thinkingUnified.applyFormat.
 const L = {
@@ -39,6 +40,7 @@ const PATTERN_THINKING = [
 
 // Returns valid thinking levels for a model, or null when the model has no reasoning.
 export function getThinkingLevels(provider, model) {
+  if (provider === "kiro" && resolveKiroEffortPath(model) === null) return null;
   const caps = getCapabilitiesForModel(provider, model);
   if (!caps.reasoning) return null;
   const hit = PATTERN_THINKING.find((p) => matchPattern(p.pattern, model));