docs(flows): DoD obligatorio con user-facing surface + abrir issues 0100-0103 (taxonomia, frontmatter migration, dev_console, work dashboard)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

python/functions/core/validate_recipe_yaml.py

@@ -110,11 +110,23 @@ def validate_recipe_yaml(yaml_text: str) -> dict:
                             )
 
             sink = output.get("sink")
-            valid_sinks = {"data_factory.runs", "stdout", "json_file"}
+            # duckdb sink: requires output.duckdb_path (relative or absolute) and
+            # output.table (table name). Optional output.database_id (default =
+            # recipe_name + "_db") used to register/lookup in data_factory.databases.
+            valid_sinks = {"data_factory.runs", "stdout", "json_file", "duckdb"}
             if sink is not None and sink not in valid_sinks:
                 errors.append(
                     f"Campo 'output.sink' debe ser uno de {sorted(valid_sinks)}, got '{sink}'."
                 )
+            if sink == "duckdb":
+                if not output.get("duckdb_path"):
+                    errors.append(
+                        "Sink 'duckdb' requiere 'output.duckdb_path' (ruta al archivo .duckdb)."
+                    )
+                if not output.get("table"):
+                    errors.append(
+                        "Sink 'duckdb' requiere 'output.table' (nombre de la tabla destino)."
+                    )
 
     return {
         "valid": len(errors) == 0,