Implementar MARGARET - Log de entrada CORP

- app.py: API Flask con endpoints /health, /ingest, /query, /list
- Dockerfile y docker-compose.yml para despliegue
- init.sql para crear tabla margaret_log
- Autenticacion via X-Auth-Key (h_instancia)
- Almacenamiento en R2 y PostgreSQL

Desplegado en CORP (92.112.181.188:5051)

init.sql

@@ -0,0 +1,23 @@
+-- MARGARET Log Table
+-- Deploy on CORP PostgreSQL
+
+CREATE TABLE IF NOT EXISTS margaret_log (
+    id BIGSERIAL PRIMARY KEY,
+    h_instancia VARCHAR(64) NOT NULL,
+    h_entrada VARCHAR(64) NOT NULL,
+    contenedor JSONB NOT NULL,
+    r2_paths JSONB DEFAULT '{}',
+    estado VARCHAR(20) DEFAULT 'recibido',
+    procesado_at TIMESTAMP,
+    created_at TIMESTAMP DEFAULT NOW(),
+    CONSTRAINT margaret_log_h_entrada_unique UNIQUE (h_entrada)
+);
+
+-- Grant permissions
+GRANT ALL PRIVILEGES ON TABLE margaret_log TO corp;
+GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO corp;
+
+-- Index for performance
+CREATE INDEX IF NOT EXISTS idx_margaret_log_h_instancia ON margaret_log(h_instancia);
+CREATE INDEX IF NOT EXISTS idx_margaret_log_estado ON margaret_log(estado);
+CREATE INDEX IF NOT EXISTS idx_margaret_log_created_at ON margaret_log(created_at);