Wire plugin services through Bind/InjectFrom and AppContext so HTTP and
workers resolve dependencies after Apply. Register TaskHandler objects
with persisted results, and implement send_email_code, mail:send,
cleanup_inactive_users, and dispatch_bot_msg.
24 of the 96 nolint directives were dead: they covered findings that no
longer exist. A stale suppression is not inert — it silently claims any
future finding for that linter in that scope, so a real problem raised
there would vanish without anyone noticing. Explanatory prose was kept as
ordinary comments.
Two directives proved load-bearing under the project gate even though
nolintlint reported them unused, and removing them exposed verified
contextcheck false positives: App.Run does forward a sigCtx derived from
the caller's context to Start, and the migration lock renewal must keep
its own deadline because the task context may already be canceled. Both
were restored, narrowed to the live linter, and given the reason the
originals lacked.
AppendTaskExecutionLog discarded the error from its read of the buffer, so a
transient cache failure looked like an empty buffer and the very next write
replaced the whole accumulated log with just the newest line. Flush already
distinguished miss from failure; append now does the same.
loadTaskExecutionLog and loadTaskExecutionLogs could never fail, yet four
call sites branched on their error as if they could, presenting unreachable
code as error handling.