feat: Initial pipeline for Twitch highlight detection

- New 2-of-3 detection system (chat + audio + color)
- GPU support (PyTorch ROCm/CUDA ready)
- Draft mode (360p) for fast testing
- HD mode (1080p) for final render
- Auto download video + chat
- CLI pipeline script
- Documentation in Spanish

pipeline.sh

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+#!/bin/bash
+
+# Highlight Detector Pipeline con Modo Draft
+# Uso: ./pipeline.sh <video_id> [output_name] [--draft | --hd]
+
+set -e
+
+# Parsear argumentos
+DRAFT_MODE=false
+VIDEO_ID=""
+OUTPUT_NAME="highlights"
+
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        --draft)
+            DRAFT_MODE=true
+            shift
+            ;;
+        --hd)
+            DRAFT_MODE=false
+            shift
+            ;;
+        *)
+            if [[ -z "$VIDEO_ID" ]]; then
+                VIDEO_ID="$1"
+            else
+                OUTPUT_NAME="$1"
+            fi
+            shift
+            ;;
+    esac
+done
+
+if [ -z "$VIDEO_ID" ]; then
+    echo "Uso: $0 <video_id> [output_name] [--draft | --hd]"
+    echo ""
+    echo "Modos:"
+    echo "  --draft   Modo prueba rápida (360p, menos procesamiento)"
+    echo "  --hd      Modo alta calidad (1080p, por defecto)"
+    echo ""
+    echo "Ejemplo:"
+    echo "  $0 2701190361 elxokas --draft   # Prueba rápida"
+    echo "  $0 2701190361 elxokas --hd      # Alta calidad"
+    exit 1
+fi
+
+echo "============================================"
+echo "  HIGHLIGHT DETECTOR PIPELINE"
+echo "============================================"
+echo "Video ID: $VIDEO_ID"
+echo "Output:   $OUTPUT_NAME"
+echo "Modo:     $([ "$DRAFT_MODE" = true ] && echo "DRAFT (360p)" || echo "HD (1080p)")"
+echo ""
+
+# Determinar calidad
+if [ "$DRAFT_MODE" = true ]; then
+    QUALITY="360p"
+    VIDEO_FILE="${OUTPUT_NAME}_draft.mp4"
+else
+    QUALITY="best"
+    VIDEO_FILE="${OUTPUT_NAME}.mp4"
+fi
+
+# 1. Descargar video
+echo "[1/5] Descargando video ($QUALITY)..."
+if [ ! -f "$VIDEO_FILE" ]; then
+    streamlink "https://www.twitch.tv/videos/${VIDEO_ID}" "$QUALITY" -o "$VIDEO_FILE"
+else
+    echo "Video ya existe: $VIDEO_FILE"
+fi
+
+# 2. Descargar chat
+echo "[2/5] Descargando chat..."
+if [ ! -f "${OUTPUT_NAME}_chat.json" ]; then
+    TwitchDownloaderCLI chatdownload --id "$VIDEO_ID" -o "${OUTPUT_NAME}_chat.json"
+else
+    echo "Chat ya existe"
+fi
+
+# 3. Detectar highlights (usando GPU si está disponible)
+echo "[3/5] Detectando highlights..."
+python3 detector_gpu.py \
+    --video "$VIDEO_FILE" \
+    --chat "${OUTPUT_NAME}_chat.json" \
+    --output "${OUTPUT_NAME}_highlights.json" \
+    --threshold 1.5 \
+    --min-duration 10
+
+# 4. Generar video
+echo "[4/5] Generando video..."
+python3 generate_video.py \
+    --video "$VIDEO_FILE" \
+    --highlights "${OUTPUT_NAME}_highlights.json" \
+    --output "${OUTPUT_NAME}_final.mp4"
+
+# 5. Limpiar
+echo "[5/5] Limpiando archivos temporales..."
+if [ "$DRAFT_MODE" = true ]; then
+    rm -f "${OUTPUT_NAME}_draft_360p.mp4"
+fi
+
+echo ""
+echo "============================================"
+echo "  COMPLETADO"
+echo "============================================"
+echo "Video final: ${OUTPUT_NAME}_final.mp4"
+echo ""
+echo "Para procesar en HD después:"
+echo "  $0 $VIDEO_ID ${OUTPUT_NAME}_hd --hd"