feat(deploy): despliegue nativo Debian sin Docker

- Elimina todos los Dockerfiles y docker-compose.yml
- Elimina scripts Docker (start_docker, reset_and_deploy, deploy-clean)
- Agrega deploy/debian/ con despliegue nativo via systemd:
  - install.sh: instalacion completa en Debian (PostgreSQL, Redis,
    Qdrant binario, Go, Python venv, nginx, frontend compilado)
  - build.sh: recompila binarios Go y frontend sin reinstalar
  - env.example: variables de entorno sin referencias Docker
  - nginx.conf: sirve React estatico + proxy al API Go en localhost
  - systemd/*.service: 16 servicios (8 Go + 7 Python + Qdrant)

Todos los hostnames Docker (db, redis, qdrant) reemplazados por 127.0.0.1

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

deploy/debian/env.example

@@ -0,0 +1,104 @@
+# =============================================================================
+# RSS2 - Variables de entorno para despliegue Debian nativo
+# Copiar a /opt/rss2/.env y editar valores antes de instalar
+# =============================================================================
+
+# --- PostgreSQL ---
+POSTGRES_DB=rss
+POSTGRES_USER=rss
+POSTGRES_PASSWORD=CAMBIA_ESTO_postgres_password
+
+# Usadas por workers Go (equivalente a DATABASE_URL)
+DB_HOST=127.0.0.1
+DB_PORT=5432
+DB_NAME=rss
+DB_USER=rss
+DB_PASS=CAMBIA_ESTO_postgres_password
+
+# URL completa para backend API Go
+DATABASE_URL=postgres://rss:CAMBIA_ESTO_postgres_password@127.0.0.1:5432/rss?sslmode=disable
+
+# --- Redis ---
+REDIS_PASSWORD=CAMBIA_ESTO_redis_password
+REDIS_URL=redis://:CAMBIA_ESTO_redis_password@127.0.0.1:6379
+
+# --- JWT Secret (minimo 32 caracteres, aleatorio) ---
+SECRET_KEY=CAMBIA_ESTO_jwt_secret_muy_largo_y_aleatorio
+
+# --- Backend API ---
+SERVER_PORT=8080
+
+# --- Zona horaria ---
+TZ=Europe/Madrid
+
+# --- HuggingFace cache (modelos ML) ---
+HF_HOME=/opt/rss2/hf_cache
+
+# --- Qdrant (local, sin Docker) ---
+QDRANT_HOST=127.0.0.1
+QDRANT_PORT=6333
+QDRANT_COLLECTION=news_vectors
+
+# --- Translator (NLLB-200 via CTranslate2) ---
+TARGET_LANGS=es
+TRANSLATOR_BATCH=32
+CT2_MODEL_PATH=/opt/rss2/models/nllb-ct2
+CT2_DEVICE=cpu
+CT2_COMPUTE_TYPE=int8
+UNIVERSAL_MODEL=facebook/nllb-200-distilled-600M
+
+# --- Embeddings ---
+EMB_MODEL=sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2
+EMB_BATCH=64
+EMB_SLEEP_IDLE=5
+EMB_LANGS=es
+EMB_LIMIT=1000
+DEVICE=cpu
+
+# --- NER ---
+NER_LANG=es
+NER_BATCH=64
+
+# --- Ingestor RSS ---
+RSS_MAX_WORKERS=100
+RSS_POKE_INTERVAL_MIN=15
+
+# --- Scraper ---
+SCRAPER_SLEEP=60
+SCRAPER_BATCH=10
+
+# --- Discovery ---
+DISCOVERY_INTERVAL=900
+DISCOVERY_BATCH=10
+MAX_FEEDS_PER_URL=5
+
+# --- Wiki Worker ---
+WIKI_SLEEP=10
+
+# --- Topics ---
+TOPICS_SLEEP=10
+TOPICS_BATCH=500
+
+# --- Related ---
+RELATED_SLEEP=10
+RELATED_BATCH=200
+RELATED_TOPK=10
+
+# --- Cluster ---
+EVENT_DIST_THRESHOLD=0.35
+
+# --- Categorizer ---
+CATEGORIZER_BATCH_SIZE=10
+CATEGORIZER_SLEEP_IDLE=5
+
+# --- Scheduler traduccion ---
+SCHEDULER_BATCH=1000
+SCHEDULER_SLEEP=30
+
+# --- Lang Detect ---
+LANG_DETECT_SLEEP=60
+LANG_DETECT_BATCH=1000
+
+# --- Qdrant Worker ---
+QDRANT_SLEEP=30
+QDRANT_BATCH=100