Problem: Wrong credentials during login produced two bugs: scrapers wrapped the `bad_credentials` error code in `"Login failed: ..."`, causing double-prefixed messages in the UI; and `credentials.lua` did not clear cached credentials before re-prompting or on failure, leaving stale bad creds in the cache. Solution: Standardize all scrapers to emit `"bad_credentials"` as the raw error code. Add `LOGIN_ERRORS` map in `constants.lua` to translate it to a human-readable string in both `credentials.lua` and `submit.lua`. Fix `credentials.lua` to clear credentials on failure in both the fresh-prompt and cached-creds-fail paths. For AtCoder and Codeforces, replace `wait_for_url` with `wait_for_function` to detect the login error element immediately rather than waiting the full 10s navigation timeout. Also add "Remember me" checkbox check on Codeforces login. |
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