Initial FELDMAN implementation - Completed flows registry

- Flask API for storing completed flows
- Receives OK flows from ALFRED/JARED
- Receives corrected data from MASON
- Docker deployment on port 5054

init.sql

@@ -0,0 +1,14 @@
+-- FELDMAN tables
+
+CREATE TABLE IF NOT EXISTS completados (
+    id BIGSERIAL PRIMARY KEY,
+    h_completado VARCHAR(64) NOT NULL UNIQUE,
+    h_instancia_origen VARCHAR(64) NOT NULL,
+    h_ejecucion VARCHAR(64),
+    flujo_nombre VARCHAR(100),
+    datos JSONB DEFAULT '{}',
+    notas TEXT,
+    created_at TIMESTAMP DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_completados_origen ON completados(h_instancia_origen);