fix: review fixes — bump CHROMIUM_VERSION to v145, add colorScheme to JS, guard download fallback

cloakbrowser/browser.py

@@ -15,7 +15,7 @@ Usage:
 from __future__ import annotations
 
 import logging
-from typing import Any
+from typing import Any, Literal
 from urllib.parse import unquote, urlparse, urlunparse
 
 from .config import DEFAULT_VIEWPORT, get_default_stealth_args
@@ -168,7 +168,7 @@ def launch_context(
     viewport: dict | None = None,
     locale: str | None = None,
     timezone_id: str | None = None,
-    color_scheme: str | None = None,
+    color_scheme: Literal["light", "dark", "no-preference"] | None = None,
     geoip: bool = False,
     **kwargs: Any,
 ) -> Any:

cloakbrowser/config.py

@@ -12,7 +12,7 @@ from ._version import __version__
 # ---------------------------------------------------------------------------
 # Chromium version shipped with this release
 # ---------------------------------------------------------------------------
-CHROMIUM_VERSION = "142.0.7444.175"
+CHROMIUM_VERSION = "145.0.7632.109"
 
 # ---------------------------------------------------------------------------
 # Default stealth arguments passed to the patched Chromium binary.

cloakbrowser/download.py

@@ -121,10 +121,12 @@ def _download_and_extract(version: str | None = None) -> None:
         tmp_path = Path(tmp.name)
 
     try:
-        # Try primary, fall back to GitHub Releases
+        # Try primary, fall back to GitHub Releases (skip fallback if custom URL)
         try:
             _download_file(primary_url, tmp_path)
         except Exception as primary_err:
+            if os.environ.get("CLOAKBROWSER_DOWNLOAD_URL"):
+                raise
             logger.warning(
                 "Primary download failed (%s), trying GitHub Releases...",
                 primary_err,