Feat: Discover zukunftssicher (Recency-Score) + Agent-Hirn (Hermes) im Modell-Manager

- discover.rank_runnable: Score aus Fit + Recency (lastModified, Halbwertszeit ~9 Mon)
  + Capability (params, log) + Popularity (downloads, log) -> neuere Generationen bevorzugt.
- Agent-Hirn: neuer GET /api/agent/brain (aktuelles hermes-Modell + bestes NousResearch-
  Hermes-Update, versions-aware via Hermes-X.Y-Parsing). Cockpit zeigt "Agent-Hirn (Hermes)"-Karte
  mit aktuellem Brain + Aktualisieren-Button, wenn NousResearch eine neuere Generation hat
  (z.B. Hermes-4-14B -> Hermes-4.3-36B). Update installiert mit Rolle hermes.

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

frontend/src/views/models/Cockpit.tsx

@@ -1,7 +1,7 @@
 import { useState, useRef, useCallback } from "react"
-import { Download, Trash2, Edit3, Activity, HardDrive, X, Check, Copy, Zap } from "lucide-react"
+import { Download, Trash2, Edit3, Activity, HardDrive, X, Check, Copy, Zap, Bot } from "lucide-react"
 import { api, type ModelInfo } from "@/lib/api"
-import { useModels, useRouting, useConnect, useUpdates, useQueryClient, qk } from "@/lib/queries"
+import { useModels, useRouting, useConnect, useUpdates, useHermesBrain, useQueryClient, qk } from "@/lib/queries"
 import { useDialog } from "@/lib/useDialog"
 import { CapsChips } from "@/components/CapsChips"
 import { cn } from "@/lib/utils"
@@ -15,6 +15,7 @@ export function Cockpit() {
   const { data: routing } = useRouting(4_000)
   const { data: connectData } = useConnect()
   const { data: updates } = useUpdates(4_000)
+  const { data: brain } = useHermesBrain()
   const { showAlert, showConfirm, showPrompt, dialogElement } = useDialog()
   const models = modelsResp?.models ?? []
   const running = modelsResp?.running ?? []
@@ -175,6 +176,25 @@ export function Cockpit() {
     }
   }
 
+  async function handleBrainUpdate(repo: string) {
+    showConfirm(
+      "Agent-Hirn aktualisieren?",
+      `Neues Hermes-Modell '${repo.split("/").pop()}' herunterladen und als Agent-Hirn (Rolle hermes) setzen? Hermes nutzt danach automatisch das neue Modell.`,
+      async () => {
+        try {
+          await api("/api/models/install", {
+            method: "POST",
+            body: JSON.stringify({ repo, role: "hermes", quant: "Q4_K_M", jinja: true }),
+          })
+          showAlert("Download gestartet", "Das neue Agent-Hirn wird geladen. Fortschritt oben.")
+          reload()
+        } catch (e: any) {
+          showAlert("Fehler", `Update fehlgeschlagen: ${e.message || e}`)
+        }
+      }
+    )
+  }
+
   async function copySnippet(snippet?: string) {
     if (!snippet) return
     await navigator.clipboard.writeText(snippet)
@@ -628,6 +648,55 @@ export function Cockpit() {
         </div>
       </div>
 
+      {/* ZONE B.6: Agent-Hirn (Hermes) — sichtbar + updatebar (NousResearch) */}
+      {brain?.current && (
+        <div className="rounded-2xl border border-indigo-500/30 bg-indigo-500/5 backdrop-blur-md p-5 shadow-lg shadow-black/10 space-y-3.5">
+          <div className="flex items-center justify-between flex-wrap gap-2">
+            <div className="flex items-center gap-2">
+              <Bot className="h-4.5 w-4.5 text-indigo-400" />
+              <span className="text-xs font-bold uppercase tracking-wider text-foreground">Agent-Hirn (Hermes)</span>
+              {brain.current.version != null && (
+                <span className="text-[9px] font-mono px-1.5 py-0.5 rounded bg-indigo-500/15 text-indigo-300 border border-indigo-500/25">v{brain.current.version}</span>
+              )}
+            </div>
+            <span className="text-[10px] font-mono text-muted-foreground hidden sm:block">Modell, das der Hermes-Agent als Gehirn nutzt</span>
+          </div>
+
+          <div className="flex flex-col sm:flex-row sm:items-center justify-between gap-3 rounded-xl bg-background/30 border border-border/30 p-3.5">
+            <div className="min-w-0">
+              <div className="text-xs font-mono font-bold text-foreground truncate" title={brain.current.name}>
+                {brain.current.name.split("/").pop()}
+              </div>
+              <div className="text-[10px] text-muted-foreground/80 flex items-center gap-2 mt-0.5">
+                <span>{brain.current.params_b ? `${brain.current.params_b}B` : "—"}</span>
+                <span>•</span><span>{brain.current.quant || "GGUF"}</span>
+                <span>•</span><span>{fmtSize(brain.current.size_bytes || 0)}</span>
+              </div>
+            </div>
+            {brain.update_available && brain.recommended ? (
+              <button
+                onClick={() => handleBrainUpdate(brain.recommended!.repo)}
+                className="h-8 px-3 shrink-0 flex items-center justify-center gap-1.5 rounded-lg bg-amber-500 text-black text-[10px] font-bold uppercase hover:bg-amber-400 transition-all cursor-pointer shadow-md shadow-amber-500/10"
+              >
+                <Download className="h-3.5 w-3.5" /> Aktualisieren
+              </button>
+            ) : (
+              <span className="h-8 px-3 shrink-0 flex items-center gap-1.5 text-[10px] font-bold text-emerald-400 uppercase tracking-wide bg-emerald-500/5 border border-emerald-500/15 rounded-lg select-none">
+                <Check className="h-4 w-4" /> Neueste Generation
+              </span>
+            )}
+          </div>
+
+          {brain.update_available && brain.recommended && (
+            <div className="text-[10px] text-amber-400/90 flex items-center gap-1.5">
+              <span className="w-1.5 h-1.5 rounded-full bg-amber-400 animate-ping shrink-0" />
+              Neuere Generation verfügbar: <span className="font-mono font-bold">{brain.recommended.name.replace(/-GGUF$/i, "")}</span>
+              (v{brain.recommended.version}, {brain.recommended.params_b}B) — von NousResearch.
+            </div>
+          )}
+        </div>
+      )}
+
       {/* ZONE C: Library list cards & Upgrade Radar */}
       <div className="space-y-4">
         <div className="flex flex-col sm:flex-row sm:items-center justify-between gap-3 px-1">