Task: Pull remote and fast-forward main

Identity

Fetch origin and fast-forward the local main branch from 38f85f6 to the verified remote origin/main tip.
Preserve the adopted untracked review task record and make no independent product-source changes.

Use a fast-forward-only merge so this task cannot synthesize an unreviewed merge commit or resolve content conflicts implicitly.
Keep all existing local task records intact and verify branch ancestry, remote parity, and worktree state after the update.

Fetched origin and fast-forwarded local main by nine commits, from 38f85f6b5e4dc4e2c5e5b9f8f4506554cfd578f5 to bf32fecd6013101485434b1977a73beb8b6a1fe3.
The update used git pull --ff-only origin main; no conflict resolution or additional merge commit was created.
Preserved the adopted untracked review record 20260831-review-local-update-5b8c21.md unchanged.
The task-aware drift check correctly identified the five immutable source task records and product files introduced by the remote fast-forward as changes after this task's recorded base. Those files were not edited or re-authored by this task; final ownership transfers to a fresh Integration task whose base already contains the remote history.

git rev-parse HEAD and git rev-parse origin/main both returned bf32fecd6013101485434b1977a73beb8b6a1fe3.
git rev-list --left-right --count main...origin/main returned 0 0.
git merge-base --is-ancestor 38f85f6 HEAD passed.
git diff --check 38f85f6..HEAD passed.
No code tests were rerun because this task performed an exact fast-forward of the already-committed remote history and introduced no independent source edits.
The first task-aware documentation drift check was blocked by the imported remote source records, as required by the ownership boundary.

Close the documentation gate from a fresh Integration task based on the synchronized main tip; do not push remote history unless explicitly asked.