Feat: kuratierter Modell-Katalog (Cookbook) - korrekte Metadaten statt Namens-Raterei

Inspiriert von Odysseus' Cookbook: backend/models_catalog.json mit echten Metadaten
(total/active params, moe, generation) je Rolle. services/catalog.py: Laden, Name-Match,
MoE-bewusstes Scoring (Wissen + Tempo via tps -> MoE-first auf der bandbreiten-Box), Fit.
- discover.py: Empfehlung jetzt KATALOG-FIRST (kuratiert, korrekt), HF-Dynamik als Ergaenzung/Fallback.
- maintenance.model_upgrades: Metadaten aus Katalog -> praezise Familie/Generation/Groesse + MoE-first
  (dense ersetzt MoE nur bei grossem Wissens-Sprung). Behebt Coder-Next=7B-Fehlschaetzung,
  Qwen2.5-VL-Generations-Downgrade, falsches dense-scout-Upgrade.
- fit.py: MXFP4/FP8/AWQ in der Quant-Tabelle.

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

backend/models_catalog.json

@@ -0,0 +1,60 @@
+{
+  "_comment": "Kuratierter Modell-Katalog (Cookbook) für Strix Halo / Ryzen AI MAX+ 395 — 128GB unified, bandbreiten-limitiert (256 GB/s). MoE-first. EINE Quelle der Wahrheit für KORREKTE Metadaten (total/active params, moe, generation) → präzise Empfehlungen ohne Namens-Raterei. Inspiriert vom Odysseus-Cookbook (statischer, validierter Katalog statt Live-Scraping). Erweiterbar: neue Modelle hier eintragen. Felder: name (Match-Identifier), repo (HF org/name für Install), family (+Subtyp), generation (numerisch, für Upgrade-Vergleich), total_params_b, active_params_b (=total bei dense), moe, quant, ctx (empfohlen), tools, vision.",
+  "version": "2026-06-27",
+  "models": [
+    {
+      "role": "fast", "name": "Qwen3.6-35B-A3B", "repo": "Qwen/Qwen3.6-35B-A3B-GGUF",
+      "family": "qwen", "generation": 3.6, "total_params_b": 35, "active_params_b": 3,
+      "moe": true, "quant": "Q4_K_M", "ctx": 32768, "tools": true, "vision": true
+    },
+    {
+      "role": "fast", "name": "Qwen3-30B-A3B-Instruct", "repo": "unsloth/Qwen3-30B-A3B-Instruct-2507-GGUF",
+      "family": "qwen", "generation": 3.0, "total_params_b": 30, "active_params_b": 3,
+      "moe": true, "quant": "Q4_K_M", "ctx": 32768, "tools": true, "vision": false
+    },
+
+    {
+      "role": "heavy", "name": "Qwen3.5-122B-A10B", "repo": "Qwen/Qwen3.5-122B-A10B-GGUF",
+      "family": "qwen", "generation": 3.5, "total_params_b": 122, "active_params_b": 10,
+      "moe": true, "quant": "Q4_K_M", "ctx": 32768, "tools": true, "vision": false
+    },
+    {
+      "role": "heavy", "name": "gpt-oss-120b", "repo": "ggml-org/gpt-oss-120b-GGUF",
+      "family": "gpt-oss", "generation": 1.0, "total_params_b": 120, "active_params_b": 5,
+      "moe": true, "quant": "MXFP4", "ctx": 32768, "tools": true, "vision": false
+    },
+
+    {
+      "role": "coder", "name": "Qwen3-Coder-Next", "repo": "Qwen/Qwen3-Coder-Next-GGUF",
+      "family": "qwen-coder", "generation": 3.0, "total_params_b": 84, "active_params_b": 3,
+      "moe": true, "quant": "Q4_K_M", "ctx": 65536, "tools": true, "vision": false
+    },
+    {
+      "role": "coder", "name": "Qwen3-Coder-30B-A3B-Instruct", "repo": "unsloth/Qwen3-Coder-30B-A3B-Instruct-GGUF",
+      "family": "qwen-coder", "generation": 3.0, "total_params_b": 30, "active_params_b": 3,
+      "moe": true, "quant": "Q4_K_M", "ctx": 65536, "tools": true, "vision": false
+    },
+
+    {
+      "role": "vision", "name": "Qwen3-VL-8B-Instruct", "repo": "Qwen/Qwen3-VL-8B-Instruct-GGUF",
+      "family": "qwen-vl", "generation": 3.0, "total_params_b": 8, "active_params_b": 8,
+      "moe": false, "quant": "Q4_K_M", "ctx": 32768, "tools": false, "vision": true
+    },
+    {
+      "role": "vision", "name": "Qwen3-VL-2B-Instruct", "repo": "Qwen/Qwen3-VL-2B-Instruct-GGUF",
+      "family": "qwen-vl", "generation": 3.0, "total_params_b": 2, "active_params_b": 2,
+      "moe": false, "quant": "Q4_K_M", "ctx": 32768, "tools": false, "vision": true
+    },
+
+    {
+      "role": "scout", "name": "gemma-4-26B-A4B-it", "repo": "google/gemma-4-26B-A4B-it-GGUF",
+      "family": "gemma", "generation": 4.0, "total_params_b": 26, "active_params_b": 4,
+      "moe": true, "quant": "Q4_K_M", "ctx": 32768, "tools": false, "vision": true
+    },
+    {
+      "role": "scout", "name": "gemma-4-31B-it", "repo": "google/gemma-4-31B-it-GGUF",
+      "family": "gemma", "generation": 4.0, "total_params_b": 31, "active_params_b": 31,
+      "moe": false, "quant": "Q4_K_M", "ctx": 32768, "tools": false, "vision": true
+    }
+  ]
+}