Beagle SCM

DIS-022: be log is empty in a detached / submodule worktree

be log in a submodule worktree (detached at the gitlink pin, or on a synthetic branch) prints nothing though the worktree has a real tip and history. Log resolves an ordinary branch ref that comes up empty instead of resolving the worktree's CURRENT BASE the way the other verbs do. The goal: be log lists history from the current base whether attached or detached, reusing the shared cur-tip resolver — no bespoke logic. See GET, Graf.

Issues

Log's tip resolution diverges from the shared current-base path.

• be log from a sub (cur = ?<sha> detached or .<parent> synthetic) returns no rows; the same store has the commits (a push from it walks 39 commits).
• Log resolves a branch ref, not the worktree's current base, so a detached/synthetic cur yields nothing.

Blockers

None.

Planned

Resolve the current base via the SHARED utility the other verbs use; write no new resolution logic.

• Make graf/LOG.c obtain the start tip from the same shared cur-tip resolver (SNIFFAtTailOf / the at-tip helper) that GET/status use, honouring detached ?<sha> and synthetic branches.
• Do NOT add a custom branch-walk; reuse the existing shared fn (CLAUDE.md §13).
• Repro test: in a detached/sub worktree with N commits, be log lists them.