fix(vertex_ai/gemini/transformation.py): handle 'http://' in gemini p… (#7660)

* fix(vertex_ai/gemini/transformation.py): handle 'http://' in gemini process url

* refactor(router.py): refactor '_prompt_management_factory' to use logging obj get_chat_completion logic

deduplicates code

* fix(litellm_logging.py): update 'get_chat_completion_prompt' to update logging object messages

* docs(prompt_management.md): update prompt management to be in beta

given feedback - this still needs to be revised (e.g. passing in user message, not ignoring)

* refactor(prompt_management_base.py): introduce base class for prompt management

allows consistent behaviour across prompt management integrations

* feat(prompt_management_base.py): support adding client message to template message + refactor langfuse prompt management to use prompt management base

* fix(litellm_logging.py): log prompt id + prompt variables to langfuse if set

allows tracking what prompt was used for what purpose

* feat(litellm_logging.py): log prompt management metadata in standard logging payload + use in langfuse

allows logging prompt id / prompt variables to langfuse

* test: fix test

* fix(router.py): cleanup unused imports

* fix: fix linting error

* fix: fix trace param typing

* fix: fix linting errors

* fix: fix code qa check

litellm/proxy/proxy_server.py

@@ -2565,7 +2565,6 @@ class ProxyConfig:
         for response in responses:
             if response is not None:
                 param_name = getattr(response, "param_name", None)
-                verbose_proxy_logger.info(f"loading {param_name} settings from db")
                 if param_name == "litellm_settings":
                     verbose_proxy_logger.info(
                         f"litellm_settings: {response.param_value}"