BL-004 [defer] Add explicit freshness reconcile and non-loop handoff for branch-head/manual/require

[MacAttak]

Observed in work pivot-scope-expansion from debug-freshness-lifecycle-loop.

Problem:

• /sw-ship blocks on branch freshness when validation=branch-head, checkpoint=require, and reconcile=manual.
• Re-running /sw-verify blocks before gates on the same freshness condition.
• /sw-build also blocks on the same freshness condition.
• /sw-sync is explicitly advisory-only and never clears freshness blocks.
• /sw-verify maps any BLOCK result to Next: /sw-build, which is misleading for freshness-blocked states and creates an operator loop.

Why this needs design:

• The gap crosses multiple lifecycle skills and shared protocols: sw-build, sw-verify, sw-ship, sw-sync, git-freshness, and handoff semantics.
• Specwright currently has no sanctioned reconcile surface for manual freshness policy once a work is already in verifying or shipping-adjacent flow.
• Linked worktrees make the problem more likely because another active worktree can advance origin/main while a unit is waiting in verifying.

Needed outcome:

• Define a valid operator path for manual reconcile that does not strand the work in a blocked lifecycle loop.
• Make freshness-blocked handoffs recommend the correct next action instead of /sw-build.
• Decide whether the fix is a new reconcile skill, an allowed lifecycle sub-path, queue-mode guidance, or a narrower handoff/state change.