feat: add Vision LLM integration (CLIP + Qwen3-VL cascade)

- Add Qwen3-VL dynamic management (start/stop/status CLI)
- Add CLIP + Qwen3-VL cascade detection strategy
- Add Vision CLI commands (vision start/stop/status, detect)
- Add cascade_vision processor module
- Add clip processor module
- Add qwen_vl_manager module

Changes:
- scripts/start_qwen3vl.sh, stop_qwen3vl.sh: Qwen3-VL management scripts
- src/core/vision/: Qwen3-VL manager module
- src/core/processor/cascade_vision.rs: CLIP + Qwen3-VL cascade logic
- src/core/processor/clip.rs: CLIP classification and detection
- src/api/clip_api.rs: CLIP API endpoints
- src/cli/vision.rs: Vision CLI implementation
- src/cli/args.rs: Add Vision and Detect commands
- src/main.rs: Integrate Vision CLI
- src/core/mod.rs: Add vision module
- src/core/processor/mod.rs: Add cascade_vision module

scripts/start_qwen3vl.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+# Start Qwen3-VL server
+
+MODEL_PATH="/Users/accusys/models/Qwen3VL-8B-Instruct-Q8_0.gguf"
+MMPROJ_PATH="/Users/accusys/models/mmproj-Qwen3VL-8B-Instruct-F16.gguf"
+LOG_FILE="/Users/accusys/momentry_core/logs/qwen3vl_8086.log"
+PID_FILE="/tmp/qwen3vl.pid"
+
+# Kill existing process if running
+if [ -f "$PID_FILE" ]; then
+    OLD_PID=$(cat "$PID_FILE")
+    if ps -p "$OLD_PID" > /dev/null 2>&1; then
+        kill "$OLD_PID"
+        sleep 2
+    fi
+    rm "$PID_FILE"
+fi
+
+# Start server
+nohup /opt/homebrew/bin/llama-server \
+    --model "$MODEL_PATH" \
+    --mmproj "$MMPROJ_PATH" \
+    --host 127.0.0.1 \
+    --port 8086 \
+    --ctx-size 8192 \
+    --n-gpu-layers 99 \
+    --threads 8 \
+    --batch-size 512 \
+    --media-path /Users/accusys/momentry/output_dev \
+    > "$LOG_FILE" 2>&1 &
+
+echo $! > "$PID_FILE"
+echo "Qwen3-VL started with PID $(cat $PID_FILE)"
+echo "Log file: $LOG_FILE"
+echo "Health check: http://localhost:8086/health"