fix: carry require_existing collection lifecycle through the legacy renderer config

harness/tht/config.py

@@ -663,7 +663,13 @@ def _validate_internal_vector_contract(raw: dict[str, Any], path: Path) -> None:
     engine = vector.get("engine")
     base_url = vector.get("base_url")
     collection = vector.get("collection")
-    allowed = {"engine", "base_url", "collection"}
+    lifecycle = vector.get("collection_lifecycle")
+    allowed = {"engine", "base_url", "collection", "collection_lifecycle"}
+    if lifecycle is not None and lifecycle not in ("self_heal", "require_existing"):
+        raise ConfigError(
+            f"Configurazione non valida in {path}:\n"
+            "resources.vector.collection_lifecycle deve essere 'self_heal' o 'require_existing'"
+        )
     unexpected = sorted(set(vector) - allowed)
     if unexpected:
         raise ConfigError(

harness/tht/config_compat.py

@@ -36,11 +36,14 @@ def translate_legacy_config(raw: dict[str, Any]) -> tuple[dict[str, Any], bool]:
     if isinstance(resources, dict) and "vector" in resources and "vectors" not in translated:
         vector = _as_mapping(resources.get("vector"))
         if isinstance(vector, dict):
-            translated["vectors"] = {
+            translated_vectors: dict[str, Any] = {
                 "type": "qdrant",
                 "base_url": vector.get("base_url"),
                 "collection": vector.get("collection"),
             }
+            if vector.get("collection_lifecycle") in ("self_heal", "require_existing"):
+                translated_vectors["collection_lifecycle"] = vector["collection_lifecycle"]
+            translated["vectors"] = translated_vectors
     legacy = any(key in raw for key in _LEGACY_RESOURCE_KEYS)
     if not legacy:
         return translated, False