vtv_api: fix verify for smil URLs, use GET+Range

vtv_api.py

@@ -110,16 +110,13 @@ def _set_cache(key, data):
 
 
 def _verify_url(url, timeout=5):
-    """Verify a stream URL is reachable with HEAD request."""
+    """Verify a stream URL is reachable."""
     try:
         headers = {"User-Agent": UA["User-Agent"]}
         if "fptplay" in url:
             headers["Referer"] = "https://fptplay.vn/"
             headers["Origin"] = "https://fptplay.vn"
-        r = requests.head(url, headers=headers, timeout=timeout, allow_redirects=True)
-        if r.status_code == 200:
-            return True
-        # Some servers don't support HEAD, try GET with range
+        # Try GET with range first (more reliable than HEAD for CDNs)
         headers["Range"] = "bytes=0-0"
         r = requests.get(url, headers=headers, timeout=timeout, allow_redirects=True)
         return r.status_code in (200, 206)
@@ -301,3 +298,5 @@ def proxy_vtv_segment(url: str = Query(...)):
         )
     except:
         return Response(status_code=502, content="proxy error")
+
+# Updated: 1781062125