feat: Add start_llama and start_loop CLI commands

Added to rdagent CLI:
- rdagent start_llama: Start llama.cpp server (replaces start_llama.sh)
- rdagent start_loop: Start strategy generator loop (replaces start_strategy_loop.sh)

Features:
- start_llama: --model, --port, --gpu-layers, --ctx-size, --reasoning options
- start_loop: --target, --max-wait options with auto-restart on crash
- Both commands have full help (--help) and examples

Moved .sh scripts to scripts/:
- start_llama.sh → scripts/ (kept as reference)
- start_strategy_loop.sh → scripts/ (kept as reference)

Usage:
  rdagent start_llama                    # Start LLM server
  rdagent start_llama --gpu-layers 40    # Custom GPU layers
  rdagent start_loop                     # Start strategy loop
  rdagent start_loop --target 5          # Generate 5 strategies per run

scripts/start_llama.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+# Start llama.cpp server with Qwen3.5-35B for strategy generation
+# Usage: ./start_llama.sh
+
+MODEL_PATH="$HOME/models/qwen3.5/Qwen3.5-35B-A3B-Q3_K_M.gguf"
+PORT=8081
+
+# GPU: RTX 5060 Ti (16GB VRAM)
+# Modell braucht ~15.7GB bei voller GPU-Nutzung
+# Mit 14GB free → reduzieren wir GPU-Layers + Context
+GPU_LAYERS=30  # Weniger Layers für VRAM
+CTX_SIZE=4096  # 4K Context (reicht für Strategien)
+
+echo "🚀 Starting llama.cpp server..."
+echo "   Model: $(basename $MODEL_PATH)"
+echo "   Port: $PORT"
+echo "   GPU Layers: $GPU_LAYERS"
+echo "   Context: $CTX_SIZE"
+echo ""
+
+exec ~/llama.cpp/build/bin/llama-server \
+  --model "$MODEL_PATH" \
+  --n-gpu-layers $GPU_LAYERS \
+  --ctx-size $CTX_SIZE \
+  --port $PORT \
+  --threads 8 \
+  --threads-batch 8 \
+  --parallel 1 \
+  --flash-attn \
+  --jinja \
+  --host 0.0.0.0

scripts/start_strategy_loop.sh

@@ -0,0 +1,115 @@
+#!/bin/bash
+# ============================================================================
+# PREDIX Strategy Generator - Robust Loop
+# Restarts automatically on crash, generates strategies continuously.
+# ============================================================================
+
+SCRIPT_DIR="/home/nico/Predix"
+GENERATOR="python ${SCRIPT_DIR}/predix_smart_strategy_gen.py"
+TARGET_COUNT=3
+LOGFILE="${SCRIPT_DIR}/results/logs/generator_loop.log"
+PIDFILE="/tmp/predix_loop.pid"
+
+echo $$ > "$PIDFILE"
+mkdir -p "${SCRIPT_DIR}/results/logs"
+
+log() {
+    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" | tee -a "$LOGFILE"
+}
+
+cleanup() {
+    log "Received termination signal. Cleaning up..."
+    pkill -f "predix_smart_strategy_gen.py" 2>/dev/null
+    rm -f "$PIDFILE"
+    log "Cleanup complete. Exiting."
+    exit 0
+}
+
+trap cleanup SIGTERM SIGINT
+
+log "========================================="
+log "🚀 PREDIX Generator Loop Starting"
+log "========================================="
+log "Target: ${TARGET_COUNT} strategies per run"
+log "Log: ${LOGFILE}"
+
+ATTEMPT=0
+
+while true; do
+    ATTEMPT=$((ATTEMPT + 1))
+    log ""
+    log "=== Attempt #${ATTEMPT} ==================================="
+    
+    # Check disk space
+    DISK_USAGE=$(df -h ${SCRIPT_DIR} | tail -1 | awk '{print $5}' | sed 's/%//')
+    if [ "$DISK_USAGE" -gt 90 ]; then
+        log "⚠️  Disk usage at ${DISK_USAGE}%. Pausing..."
+        sleep 300
+        continue
+    fi
+    
+    # Check if we already have enough strategies
+    STRAT_COUNT=$(ls ${SCRIPT_DIR}/results/strategies_new/*.json 2>/dev/null | wc -l)
+    log "📁 Existing strategies: ${STRAT_COUNT}"
+    
+    # Kill any stale processes
+    pkill -9 -f "predix_smart_strategy_gen.py" 2>/dev/null
+    sleep 2
+    
+    # Start generator
+    log "🤖 Starting generator..."
+    cd "$SCRIPT_DIR"
+    nohup $GENERATOR $TARGET_COUNT > /dev/null 2>&1 &
+    GEN_PID=$!
+    log "   PID: ${GEN_PID}"
+    
+    # Monitor progress
+    ELAPSED=0
+    MAX_WAIT=1800  # 30 minutes max per run
+    
+    while kill -0 $GEN_PID 2>/dev/null; do
+        sleep 30
+        ELAPSED=$((ELAPSED + 30))
+        
+        # Check latest log for progress
+        LATEST_LOG=$(ls -t ${SCRIPT_DIR}/results/logs/smart_strategy_gen_*.log 2>/dev/null | head -1)
+        if [ -n "$LATEST_LOG" ]; then
+            LAST_LINE=$(tail -1 "$LATEST_LOG" 2>/dev/null)
+            if [ $((ELAPSED % 120)) -eq 0 ]; then  # Every 2 min
+                log "   ⏱️  ${ELAPSED}s elapsed - ${LAST_LINE:0:80}"
+            fi
+        fi
+        
+        # Timeout check
+        if [ $ELAPSED -ge $MAX_WAIT ]; then
+            log "   ⏰ Timeout after ${ELAPSED}s. Killing..."
+            kill -9 $GEN_PID 2>/dev/null
+            break
+        fi
+    done
+    
+    # Check results
+    wait $GEN_PID 2>/dev/null
+    EXIT_CODE=$?
+    
+    if [ $EXIT_CODE -eq 0 ]; then
+        log "✅ Generator completed successfully"
+    elif [ $EXIT_CODE -eq 137 ]; then
+        log "❌ Generator killed (OOM? Exit 137)"
+    else
+        log "⚠️  Generator exited with code ${EXIT_CODE}"
+    fi
+    
+    # Count new strategies
+    NEW_STRATS=$(ls -t ${SCRIPT_DIR}/results/strategies_new/*.json 2>/dev/null | head -3)
+    if [ -n "$NEW_STRATS" ]; then
+        log "📊 Latest strategies:"
+        echo "$NEW_STRATS" | while read f; do
+            [ -f "$f" ] && log "   - $(basename $f)"
+        done
+    fi
+    
+    # Wait before next attempt
+    log "⏳ Waiting 60s before next attempt..."
+    sleep 60
+done