fix(networking): remove timeout settings;

* refactor: rewrite destVersionForMac in python; remove redundant code & files; new workflow parameter: Force create release using latest WeChat dmg;

* misc: update README file;

scripts/destVersionForMac.py

@@ -76,7 +76,7 @@ def fetch_download_link() -> str:
             str: 下载链接 URL
     """
     # Fetch HTML and extract the first download link on the page.
-    with urllib.request.urlopen(WEBSITE_URL, timeout=30) as response:
+    with urllib.request.urlopen(WEBSITE_URL) as response:
         html = response.read().decode("utf-8", errors="replace")
     parser = DownloadLinkParser()
     parser.feed(html)
@@ -92,11 +92,22 @@ def fetch_head_metadata(url: str) -> dict[str, str]:
     Returns:
         dict[str, str]: 从 HEAD 响应中提取的元数据字典，键为小写字符串，值为对应的响应头值
     """
-
     # Use HEAD request to read metadata from the direct file link.
-    request = urllib.request.Request(url, method="HEAD")
-    with urllib.request.urlopen(request, timeout=30) as response:
-        return {key.lower(): value.strip() for key, value in response.headers.items()}
+    attempts = 2
+    last_error: Exception | None = None
+    for attempt in range(1, attempts + 1):
+        try:
+            request = urllib.request.Request(url, method="HEAD")
+            with urllib.request.urlopen(request) as response:
+                return {key.lower(): value.strip() for key, value in response.headers.items()}
+        except Exception as exc:
+            last_error = exc
+            if attempt < attempts:
+                log(f"HEAD request failed (attempt {attempt}). Waiting before retry...")
+                time.sleep(10)
+    if last_error:
+        log(f"HEAD request failed after {attempts} attempts: {last_error}")
+        return {}
 
 def download_with_retry(url: str, dest: Path) -> None:
     """
@@ -121,8 +132,6 @@ def download_with_retry(url: str, dest: Path) -> None:
                     "--waitretry",
                     "5",
                     "--retry-connrefused",
-                    "--timeout",
-                    "30",
                     url,
                     "-O",
                     str(dest),