merge: integrate ZSY customer service and profile capabilities

app/service/knowledge_config.py

@@ -0,0 +1,15 @@
+class KnowledgeRuntimeConfig:
+    DEFAULT_ROUTES = {
+        "faq": ("fin_faq_collection", 3),
+        "product_inquiry": ("fin_product_collection", 5),
+        "policy_explain": ("fin_policy_collection", 5),
+    }
+
+    def __init__(self, *, vector_dim: int = 1024, similarity_threshold: float = 0.60) -> None:
+        self.routes = dict(self.DEFAULT_ROUTES)
+        self.vector_dim = vector_dim
+        self.similarity_threshold = similarity_threshold
+
+    def route(self, intent: str) -> tuple[str, int] | None:
+        """Return the collection route used by the retrieval compatibility layer."""
+        return self.routes.get(intent)