fix(v9): Auto-Setup "agent"-Slot via Tool-Capability statt Name-Kategorie

Der agent-Slot zog bisher aus der duennen Name-Keyword-Kategorie und blieb
oft leer. Jetzt poolt build_dynamic_recipes fuer role==agent ueber ALLE
discover-Kategorien und filtert via model_caps.capabilities (HF-Tags) auf
tool-faehige Modelle.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

routers/cookbook.py

@@ -52,6 +52,13 @@ def _is_moe(name: str) -> bool:
             or "mixtral" in low or bool(re.search(r"\d+x\d+\.?\d*b", low)))
 
 
+def _tool_capable(m: dict) -> bool:
+    """Tool-Fähigkeit eines (noch nicht installierten) Modells aus Name + HF-Tags."""
+    from model_caps import capabilities
+    c = capabilities(name=m.get("repo", ""), hf={"tags": m.get("tags", [])})
+    return c["tools"] != "no"
+
+
 def _safe_discover(ram_gb: float) -> dict | None:
     """discover-Daten aus Cache (oder live), ohne zu werfen — None wenn nichts da."""
     cached = _load_discover()
@@ -68,15 +75,20 @@ def build_dynamic_recipes(disc: dict) -> list:
     Pro Slot das beste passende Modell (perfect>marginal, MoE bevorzugt fuer APU,
     dann Beliebtheit); dedupe ueber Slots; leere Slots werden still ausgelassen."""
     cats = {c["role"]: c for c in (disc.get("categories") or [])}
+    all_models = [m for c in cats.values() for m in (c.get("models") or [])]
     out = []
     for tpl in RECIPE_TEMPLATES:
         used: set[str] = set()
         models = []
         for role in tpl["slots"]:
-            cat = cats.get(role)
-            if not cat:
-                continue
-            cands = [m for m in cat["models"]
+            # "agent" = bestes TOOL-FÄHIGES Modell (kategorieübergreifend, via caps),
+            # nicht die dünne Name-Keyword-Kategorie. Sonst: Modelle der Rolle.
+            if role == "agent":
+                pool = [m for m in all_models if _tool_capable(m)]
+            else:
+                cat = cats.get(role)
+                pool = (cat.get("models") if cat else []) or []
+            cands = [m for m in pool
                      if m["fit"]["level"] != "too_tight" and m["repo"] not in used]
             if not cands:
                 continue