Fix snap chromium path collapsing to /usr/bin/snap

readlink/realpath of /snap/bin/chromium becomes /usr/bin/snap, which is
not a browser and breaks DrissionPage launch. Keep the snap wrapper path,
reject snap host basenames, and prefer real deb chromium binaries.

auto_register.py

@@ -182,18 +182,48 @@ def save_account(email: str, password: str, sso: str = ""):
         f.write(f"{email}----{password}----{sso}\n")
     print(f"[+] Saved: {email}")
 
+def _normalize_browser_path(path: str | None) -> str | None:
+    """Keep /snap/bin/chromium; never collapse to /usr/bin/snap."""
+    if not path:
+        return None
+    path = str(path).strip()
+    if not path:
+        return None
+    if not (os.path.isfile(path) or os.path.islink(path) or os.path.exists(path)):
+        return None
+    base = os.path.basename(path)
+    if base in ("snap", "snap-confine", "snapd", "env", "bash", "sh"):
+        return None
+    low = path.replace("\\", "/").lower()
+    if "chromium" not in low and "chrome" not in low:
+        return None
+    if path.startswith("/snap/bin/"):
+        return path
+    try:
+        real = os.path.realpath(path)
+        if os.path.basename(real) in ("snap", "snap-confine", "snapd"):
+            return path if ("chromium" in low or "chrome" in low) else None
+        if "chromium" in real.lower() or "chrome" in real.lower():
+            return real
+    except Exception:
+        pass
+    return path
+
+
 def resolve_browser_path() -> str | None:
     # Prefer Chromium: Google Chrome blocks --load-extension (turnstilePatch).
-    # Chrome-first order often leaves Turnstile token=0 on Xvfb servers.
+    # Never use realpath of /snap/bin/chromium → /usr/bin/snap (breaks launch).
     for cand in (
         "/usr/bin/chromium",
         "/usr/bin/chromium-browser",
+        "/usr/lib/chromium/chromium",
         "/snap/bin/chromium",
         "/usr/bin/google-chrome-stable",
         "/usr/bin/google-chrome",
     ):
-        if os.path.isfile(cand) or os.path.islink(cand):
-            return cand
+        norm = _normalize_browser_path(cand)
+        if norm:
+            return norm
     return None