Fetch GitHub Models catalog with httpx and documented headers

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

artifacts/flask-api/ai_agent.py

@@ -8,6 +8,7 @@ Supporte Mistral AI (par défaut) et tout fournisseur compatible OpenAI.
 import json
 import os
 import logging
+import httpx
 from openai import OpenAI, BadRequestError
 from legal_framework import LEGAL_FILTER_PROMPT, SYNTHESIS_PROMPT, LAW_CHECK_PROMPT, build_filter_prompt
 from legifrance_client import get_legifrance_client
@@ -77,6 +78,31 @@ def get_client() -> OpenAI:
     return _client
 
 
+GITHUB_CATALOG_URL = "https://models.github.ai/catalog/models"
+
+
+def list_model_ids() -> list[str]:
+    """Modèles accessibles avec la clé en place (GitHub Models : catalogue dédié, /models n'est pas OpenAI-compatible)."""
+    client = get_client()
+    if "models.github.ai" in str(client.base_url):
+        r = httpx.get(
+            GITHUB_CATALOG_URL,
+            headers={
+                "Authorization": f"Bearer {client.api_key}",
+                "Accept": "application/vnd.github+json",
+                "X-GitHub-Api-Version": "2022-11-28",
+            },
+            timeout=10,
+        )
+        if r.status_code != 200 or not r.content:
+            raise RuntimeError(f"catalogue GitHub HTTP {r.status_code} : {r.text[:120]!r}")
+        raw = r.json()
+        if isinstance(raw, dict):
+            raw = next((v for v in raw.values() if isinstance(v, list)), [])
+        return sorted(m["id"] if isinstance(m, dict) else str(m) for m in raw)
+    return sorted(m.id for m in client.models.list().data)
+
+
 def filter_idea(content: str) -> dict:
     """
     Filtre une idée selon le cadre légal international des droits humains

artifacts/flask-api/app.py

@@ -60,7 +60,7 @@ from database import (
     check_ip_blacklist, record_ip_rejection, get_ip_blacklist, remove_ip_blacklist,
     set_setting,
 )
-from ai_agent import filter_idea, synthesize_ideas, check_existing_law, get_client, get_model
+from ai_agent import filter_idea, synthesize_ideas, check_existing_law, get_client, get_model, list_model_ids
 
 # ─── Logging ────────────────────────────────────────────────────────────────
 
@@ -1297,7 +1297,7 @@ def admin_ai_models():
     """Modèles actuellement actifs + liste de ceux accessibles avec la clé en place."""
     out = {"filter": get_model("filter"), "synthesis": get_model("synthesis"), "available": [], "error": None}
     try:
-        out["available"] = sorted(m.id for m in get_client().models.list().data)
+        out["available"] = list_model_ids()
     except Exception as e:
         logger.warning("Admin — liste des modèles IA impossible : %s", type(e).__name__)
         out["error"] = f"{type(e).__name__}: {str(e)[:200]}"