feat: add curl_cffi session support with browser impersonation

Add new session utility with curl_cffi support for anti-bot protection
Update all manifest parsers (DASH, HLS, ISM, M3U8) to accept curl_cffi sessions
Add browser impersonation support (Chrome, Firefox, Safari)
Fix cookie handling compatibility between requests and curl_cffi
Suppress HTTPS proxy warnings for better UX
Maintain full backward compatibility with requests.Session

unshackle/core/manifests/ism.py

@@ -10,6 +10,7 @@ from pathlib import Path
 from typing import Any, Callable, Optional, Union
 
 import requests
+from curl_cffi.requests import Session as CurlSession
 from langcodes import Language, tag_is_valid
 from lxml.etree import Element
 from pyplayready.system.pssh import PSSH as PR_PSSH
@@ -34,11 +35,13 @@ class ISM:
         self.url = url
 
     @classmethod
-    def from_url(cls, url: str, session: Optional[Session] = None, **kwargs: Any) -> "ISM":
+    def from_url(cls, url: str, session: Optional[Union[Session, CurlSession]] = None, **kwargs: Any) -> "ISM":
         if not url:
             raise requests.URLRequired("ISM manifest URL must be provided")
         if not session:
             session = Session()
+        elif not isinstance(session, (Session, CurlSession)):
+            raise TypeError(f"Expected session to be a {Session} or {CurlSession}, not {session!r}")
         res = session.get(url, **kwargs)
         if res.url != url:
             url = res.url