Fix: request /crawl with stream: true issue #1066

[zinodynn]

Summary

Fixes #1066
This PR fixes the error that happens when you send a request to /crawl with stream: true in the crawler_config.
What’s the fix?

If a request has stream: true, it now automatically redirects (307) to the /crawl/stream endpoint.

No more async_generator errors

List of files changed and why

1. deploy/docker/server.py

• Added a check for stream: true in the /crawl request handler.
• If detected, redirects to /crawl/stream instead of trying to process it in the wrong place.

2. deploy/docker/static/playground/index.html

• update stream configuration based on endpoint selection (/crawl :stream is False, /crawl/stream : stream is True )
  

3. tests/docker/test_server_requests.py

• add test for crawl endpoint with stream redirects

How Has This Been Tested?

Tested with curl(like the issue example)
eg.

curl --location 'http://localhost:11235/crawl' \
--header 'Content-Type: application/json' \
--data '{
    "urls": [
        "https://example.com/page1",  
        "https://example.com/page2",
    ],
    "crawler_config": {
        "type": "CrawlerRunConfig",
        "params": {
            "scraping_strategy": {
                "type": "WebScrapingStrategy",
            },
            "stream": true
        }
    }
}'

Got a 307 redirect to /crawl/stream, and the streaming worked!

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added/updated unit tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes