chore: release 1.1.2

README first, per the release procedure: the 1.1.* pin still covers this
version, the 22-field count re-checked with inspect.signature, and the
telemetry row now states that an existing table needs no schema CREATE
privilege.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "polygateway"
-version = "1.1.1"
+version = "1.1.2"
 description = "PolyGateway：实验室统一的大语言模型（LLM/VLM/OCR）调度与中转库——多源、限流、重试、熔断、缓存、遥测"
 requires-python = ">=3.11"
 dependencies = [