refactor: move clipboard to frontend, fix cipher type mapping, add context menu

main.py

@@ -242,32 +242,27 @@ class Plugin:
     # ===== Credential Copy =====
 
     async def copy_password(self, cipher_id: str) -> dict:
-        """Copy a password to clipboard with 60s auto-clear."""
-        from clipboard import copy_to_clipboard
+        """Get password for clipboard copy."""
         password = self._get_cipher_field(cipher_id, "password")
         if password is None:
             return {"success": False, "error": "Password not found"}
-        return await copy_to_clipboard(password, clear_after=60, label=f"password_{cipher_id}")
+        return {"success": True, "value": password, "clear_after": 60}
 
     async def copy_username(self, cipher_id: str) -> dict:
-        """Copy a username to clipboard with 60s auto-clear."""
-        from clipboard import copy_to_clipboard
+        """Get username for clipboard copy."""
         username = self._get_cipher_field(cipher_id, "username")
         if username is None:
             return {"success": False, "error": "Username not found"}
-        return await copy_to_clipboard(username, clear_after=60, label=f"username_{cipher_id}")
+        return {"success": True, "value": username, "clear_after": 60}
 
     async def copy_totp(self, cipher_id: str) -> dict:
-        """Copy TOTP code to clipboard with 60s auto-clear."""
-        from clipboard import copy_to_clipboard
+        """Get TOTP code for clipboard copy."""
         from totp import generate_totp, get_totp_remaining_seconds
         totp_secret = self._get_cipher_field(cipher_id, "totp")
         if totp_secret:
             code = generate_totp(totp_secret)
             remaining = get_totp_remaining_seconds()
-            result = await copy_to_clipboard(code, clear_after=min(remaining, 30), label=f"totp_{cipher_id}")
-            result["remaining_seconds"] = remaining
-            return result
+            return {"success": True, "value": code, "clear_after": min(remaining, 30), "remaining_seconds": remaining}
         return {"success": False, "error": "TOTP not configured"}
 
     async def get_totp_code(self, cipher_id: str) -> dict: