chore(pyproject): remove playwright

* To reduce container image size, numbers of dependencies and unused code
* Code removed in previous commit

== Command used

   # uv remove pymilvus
    - playwright==1.49.1
    - pyee==12.0.0

Saves around 125MB.

Refs: PRODAI-198

Author: thlehmann-ionos

backend/open_webui/main.py

@@ -660,9 +660,6 @@ async def lifespan(app: FastAPI):
 app.state.config.SOUGOU_API_SID = SOUGOU_API_SID
 app.state.config.SOUGOU_API_SK = SOUGOU_API_SK
 
-
-app.state.config.PLAYWRIGHT_WS_URL = PLAYWRIGHT_WS_URL
-app.state.config.PLAYWRIGHT_TIMEOUT = PLAYWRIGHT_TIMEOUT
 app.state.config.FIRECRAWL_API_BASE_URL = FIRECRAWL_API_BASE_URL
 app.state.config.FIRECRAWL_API_KEY = FIRECRAWL_API_KEY
 app.state.config.TAVILY_EXTRACT_DEPTH = TAVILY_EXTRACT_DEPTH

backend/open_webui/routers/retrieval.py

@@ -675,8 +675,6 @@ async def update_rag_config(
             "SOUGOU_API_SK": request.app.state.config.SOUGOU_API_SK,
             "WEB_LOADER_ENGINE": request.app.state.config.WEB_LOADER_ENGINE,
             "ENABLE_WEB_LOADER_SSL_VERIFICATION": request.app.state.config.ENABLE_WEB_LOADER_SSL_VERIFICATION,
-            "PLAYWRIGHT_WS_URL": request.app.state.config.PLAYWRIGHT_WS_URL,
-            "PLAYWRIGHT_TIMEOUT": request.app.state.config.PLAYWRIGHT_TIMEOUT,
             "FIRECRAWL_API_KEY": request.app.state.config.FIRECRAWL_API_KEY,
             "FIRECRAWL_API_BASE_URL": request.app.state.config.FIRECRAWL_API_BASE_URL,
             "TAVILY_EXTRACT_DEPTH": request.app.state.config.TAVILY_EXTRACT_DEPTH,

pyproject.toml

@@ -45,7 +45,6 @@ dependencies = [
     "posthog<6.0.0",
     "qdrant-client~=1.12.0",
     "opensearch-py==2.8.0",
-    "playwright==1.49.1", # Caution: version must match docker-compose.playwright.yaml
     "elasticsearch==8.17.1",
     "einops==0.8.1",
     "ftfy==6.2.3",