init: pi_coder_v2 — Single-Server (Option B)

Beide Rollen (Coder + Judge) auf einem llama.cpp-Server (Port 8001).
switchModel wechselt zwischen qwen3.5-coder und qwen3.5-judge via
llama-cpp-single-Provider ohne Server-Neustart. start-single.sh startet
den gemeinsamen Server, GPU wählbar per GPU_DEVICE-Env-Variable.

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

stop-servers.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+CODER="qwen36-27b-coder"
+JUDGE="qwen36-27b-judge"
+
+for NAME in "$CODER" "$JUDGE"; do
+  if docker ps -a --format '{{.Names}}' | grep -q "^${NAME}\$"; then
+    docker rm -f "$NAME" >/dev/null
+    echo "[*] Gestoppt: $NAME"
+  else
+    echo "[-] Nicht gefunden: $NAME"
+  fi
+done