fix(setup): correct LM Studio loaded state value to "loaded" not "loaded_instance"

Querying the live /api/v0/models endpoint shows LM Studio uses state="loaded"
for in-memory models (not "loaded_instance"), so the filter never matched.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pyra/setup/wizard.py

@@ -391,7 +391,7 @@ def fetch_loaded_models(provider: Provider) -> list[str]:
             resp.raise_for_status()
             return [
                 m["id"] for m in resp.json().get("data", [])
-                if m.get("state") == "loaded_instance"
+                if m.get("state") == "loaded"
             ]
         else:  # llamacpp — /models returns only the active loaded model
             resp = httpx.get(f"{provider.base_url}/models", timeout=3.0)
@@ -427,7 +427,7 @@ def _fetch_local_models(provider: Provider) -> list[str]:
             resp.raise_for_status()
             return [
                 m["id"] for m in resp.json().get("data", [])
-                if m.get("state") == "loaded_instance"
+                if m.get("state") == "loaded"
             ]
         else:
             resp = httpx.get(f"{provider.base_url}/models", timeout=3.0)