OmniRoute/changelog.d/maintenance/8566-basered-rebaseline-mergequeue.md

• chore(quality): rebaseline complexity (2130→2183) and cognitive-complexity (951→968) across the v3.8.49 /merge-prs queue-drain. The first step (→2169/→956) cleared inherited base drift measured on the pristine release tip (the PR→release fast-path never ratchets these). The second step (→2183/→968) absorbs the aggregate own-growth of the 41-PR merge-train (each PR under-ceiling individually; the combined batch adds +14/+12). Owner-approved (2026-07-25); structural shrink tracked in #3501.