Add .golangci.yml (v2): the standard linters plus bodyclose, errorlint, noctx, misspell, rowserrcheck, sqlclosecheck, unconvert, usestdlibvars, with gofumpt + goimports formatters. Enable the std-error-handling exclusion preset for idiomatic Close/Remove/Setenv ignores; scope-exclude SA1019 (parser.ParseDir in tools/openapigen) and ST1005 (intentional capitalized user-facing error copy that tests assert verbatim). No inline nolint directives were introduced.
Resolve all 217 findings behavior-preserving: gofumpt/goimports formatting, explicit blank assignment on intentionally ignored errors, errors.Is/errors.As and %w wrapping, context-aware stdlib calls (CommandContext/QueryContext/NewRequestWithContext/Dialer), staticcheck simplifications, removed redundant conversions, http.StatusOK and http.MethodGet, inlined the go:fix intPtr helper, and deferred sql rows Close. Add a golangci CI job mirroring the existing Go jobs.
The IP-limit job tracks per-client IPs via the core's online-stats API; the access-log parser only ran as a fallback for cores predating that API (which the panel never bundles). Remove the parser, the availability check, and the hourly rotation that truncated a log the job no longer reads.
Move the user-enabled access-log wipe to the daily clear-logs job, guarded so a disabled ('none') or missing log is left alone. Retire the now-unwritten 3xipl-ap persistent-log machinery.
Also resolve IP-limit clients via the exact clients/client_inbounds relation instead of a fragile settings LIKE '%email%' substring, keeping the JSON scan only as a fallback (carried from #5496).
