reorg(characters): ship-time folders — lena_base_v01 ships, lane moves to work/lena

REGISTRY rewritten around the central rule: a character folder is born only
when a body ships to ariki-game (<character>_base_v<NN> = ship ordinal).
lena_nude dissolves accordingly:
- characters/female/lena_base_v01/ — SHIPPED 2026-08-10: AccuRig GLB carrier,
  T-pose/rig FBX + JSON, previews, frozen README
- characters/work/lena/ — the live lane: recipes 01-47 (incl. new 36-47:
  refill/sheets/clay/despeckle/musculature/spin/AccuRig export/graft/pose QC),
  masters (athletic_v04 blend + textures, accurig blend), lane-history README
- hires_claude/hires_work intermediates (blends, logs, probes) pruned

Supporting docs: AGENTS.md, working-files rule, rig-graft plan addendum,
originals README, prune_lane.py.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

characters/originals/README.md

@@ -20,9 +20,11 @@ These files are name-synced mirrors of
 - **Do not rename them** — not even to fix the missing `_v1` on the female. Names
   are baked into tools and mirrored in the game repo; renames fork identity.
 - **Do not delete them** — ever.
-- **Do not work here.** To alter a model: copy it out to the character's working
-  folder (`../male/mako/`, `../female/lena/`), name the copy per the grammar in
-  `../REGISTRY.md` (`<character>[_<variant>]_<stage>_<format>_v<NN>`), and register it.
+- **Do not work here.** To alter a model: copy it out to the character's lane
+  (`../work/mako/`, `../work/lena/`) and work there. Lanes are exempt from the
+  filename grammar. A model only earns a name and a registry row when it *ships* —
+  at which point it graduates into a new `../female/<character>_base_v<NN>/`
+  folder per `../REGISTRY.md`.
 
 Files are marked with the Windows read-only attribute as a guard; the registry
 checksums are the real integrity check.