CODE-027: decompose oversized verb functions (post.js, get.js)

Now: OPEN
Sev: LOW
Rep: ///be/

Deps: soft — land CODE-022 (put) and CODE-023 (get) FIRST so this doesn't churn the same files under them; independent of the rest. Readability only, strictly behavior-preserving. Resist the CODE-001..015 bullshit-quality trap: extract clean seams, do not rewrite logic. See work loop.

Input

Context

post.js postOne (~232 lines): preflight refuse-gating + URI-slot dispatch with four early-return branches (wt advance :817, host push :826, bare advance :836, track advance :861) + patch-origin classify + commit fan-out.
get.js inRepoSeed (~~133 lines): one function per in-repo URI shape — restore :665, `#~~N rewind :668, ?<sha> detach :687, ?#<sha>` pin :701, bare/tracked :713, branch/trunk switch :735; each ends appendWtlog+fanout.
get.js leaf (~126 lines): delete / gitlink-mount / clean-overwrite / 3-way weave behind one function; the weave path is :1032-1078.

Goals

Extract the cleanly-separable seams into named helpers; no behavior change, full ctest suite green.

Constraints

Behavior-preserving; comments ≤2 lines; skip-and-note any seam that isn't clean. be/ JS only, drive via jab.

WIP

TODOs

post.js postOne: split slot-dispatch preflight (:758-862) from the commit fan-out (:864-982)
get.js inRepoSeed: a named helper per URI shape (restore/rewind/ detach/pin/switch), each ending in the shared appendWtlog+fanout tail
get.js leaf: extract the weave/conflict path (:1032-1078)

Blockers and bummers

Overlaps files edited by CODE-022/CODE-023; sequence after them.

Outcome

Not started. Suggested commit: CODE-027: decompose post.postOne + get.inRepoSeed/leaf.