fix(providers): make all models available in kilocode provider (#32352)

* kilocode: dynamic model discovery, kilo/auto default, cooldown exemption

- Replace 9-model hardcoded catalog with dynamic discovery from
  GET /api/gateway/models (Venice-like pattern with static fallback)
- Default model changed from anthropic/claude-opus-4.6 to kilo/auto
  (smart routing model)
- Add createKilocodeWrapper for X-KILOCODE-FEATURE header injection
  and reasoning.effort handling (skip for kilo/auto)
- Add kilocode to cooldown-exempt providers (proxy like OpenRouter)
- Keep sync buildKilocodeProvider for onboarding, add async
  buildKilocodeProviderWithDiscovery for implicit provider resolution
- Per-token gateway pricing converted to per-1M-token for cost fields

* kilocode: skip reasoning injection for x-ai models, harden discovery loop

* fix(kilocode): keep valid discovered duplicates (openclaw#32352, thanks @pandemicsyn)

* refactor(proxy): normalize reasoning payload guards (openclaw#32352, thanks @pandemicsyn)

* chore(changelog): note kilocode hardening (openclaw#32352, thanks @pandemicsyn and @vincentkoc)

* chore(changelog): fix kilocode note format (openclaw#32352, thanks @pandemicsyn and @vincentkoc)

* test(kilocode): support auto-model override cases (openclaw#32352, thanks @pandemicsyn)

* Update CHANGELOG.md

---------

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

src/agents/pi-embedded-runner-extraparams.test.ts

@@ -321,7 +321,7 @@ describe("applyExtraParamsToAgent", () => {
   it("does not inject reasoning.effort for x-ai/grok models on OpenRouter (#32039)", () => {
     const payloads: Record<string, unknown>[] = [];
     const baseStreamFn: StreamFn = (_model, _context, options) => {
-      const payload: Record<string, unknown> = {};
+      const payload: Record<string, unknown> = { reasoning_effort: "medium" };
       options?.onPayload?.(payload);
       payloads.push(payload);
       return {} as ReturnType<StreamFn>;