feat: v0.13.0 Workbench multi-panel via panel v0.2.0

D.2-revisit closes the Workbench Gate-2 walkthrough: right-click
on Workbench now opens workbench_crafting (left-half layout-slot)
+ workbench_inv (right-half) simultaneously, replacing the v0.12.0
auto-switch workaround. Both panels visible at the same time.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

README.md

@@ -8,9 +8,9 @@ callback, foot-body-orientation ("tactical twist"), scale-deformation walk
 cycle, and inheritance-decoupled foot sprites. End-to-end inventory pickup/drop
 demo: pick up a rock into a backpack container, drop it back into the world.
 
-**Version:** 0.12.0
+**Version:** 0.13.0
 **Module-ID:** vagrant-skeleton
-**Requires:** lib-core.input >=0.4.0, lib-core.camera >=0.3.0, lib-core.render >=0.1.0, lib-core.maps >=0.1.2, lib-core.puppet >=0.4.4, lib-core.interaction >=0.1.0, lib-core.composition >=0.3.0, lib-core.actor >=0.1.0, lib-core.inventory-list >=0.1.0, lib-core.panel >=0.1.0, lib-core.inventory-list-display >=0.1.0, lib-core.notify >=0.1.0, lib-core.notify-display >=0.1.0, lib-core.world-overlay >=0.1.0, lib-core.crafting >=0.2.0, lib-core.crafting-display >=0.2.0, lib-asset.prototype-subterrain >=0.1.0
+**Requires:** lib-core.input >=0.4.0, lib-core.camera >=0.3.0, lib-core.render >=0.1.0, lib-core.maps >=0.1.2, lib-core.puppet >=0.4.4, lib-core.interaction >=0.1.0, lib-core.composition >=0.3.0, lib-core.actor >=0.1.0, lib-core.inventory-list >=0.1.0, lib-core.panel >=0.2.0, lib-core.inventory-list-display >=0.1.0, lib-core.notify >=0.1.0, lib-core.notify-display >=0.1.0, lib-core.world-overlay >=0.1.0, lib-core.crafting >=0.2.0, lib-core.crafting-display >=0.2.0, lib-asset.prototype-subterrain >=0.1.0
 **Tags:** test-chamber, puppet, walking-sim, interaction
 
 ## Topology
@@ -27,7 +27,7 @@ demo: pick up a rock into a backpack container, drop it back into the world.
 - **Q** — quick-drop (LIFO): places the most-recently-added backpack item at player position (+30px right)
 - **Tab** — toggle inventory panel (Backpack contents)
 - **C** — toggle Backpack-Crafting panel (lists known recipes; availability dimmed by inventory)
-- **Right-Click on Workbench** (within range) — opens Workbench-Crafting + Workbench-Inventory panels (Phase D v0.2)
+- **Right-Click on Workbench** (within range) — opens Workbench-Crafting (left-half) + Workbench-Inventory (right-half) panels side-by-side (panel v0.2.0 multi-active)
 - **Right-Click on item row** (inventory panel): context menu with **Drop** / **Inspect** (Backpack) or **Take** / **Inspect** (Workbench)
 - **Right-Click on recipe row** (crafting panel): context menu with **Craft** / **Inspect**
 - **L** — toggle game-log (chronological list of all events)
@@ -72,17 +72,18 @@ The world contains five notable entities at startup:
 **Multiple pickups:** Each E → Q → E cycle moves the same rock in and out.
 Only one rock is spawned per session.
 
-**Workbench flow (Phase D v0.2):**
+**Workbench flow (Phase D v0.2 + v0.13.0 multi-panel):**
 - Pick up rock + stick into the backpack (E on each).
 - Walk to the Workbench (just above the Backpack at (350, 380)) and
   right-click within 40px range.
-- Two panels open simultaneously (Workbench-Crafting + Workbench-Inventory).
-  Because `lib-core.panel` v0.1 is single-active, only one panel is visible
-  at a time — closing it (X) reveals the other.
+- Both panels open simultaneously, side-by-side: Workbench-Crafting in
+  the **left-half** layout-slot, Workbench-Inventory in the **right-half**
+  slot (panel v0.2.0 multi-active + layout-slots).
 - Right-click on a recipe row (e.g. **Stone Pick**) → context menu with
   **Craft** + **Inspect**. Click **Craft** → crafted item lands in
-  **Workbench-Inventory** (NOT Backpack).
-- Open Workbench-Inventory, right-click on the crafted item → **Take** moves
+  **Workbench-Inventory** (NOT Backpack); it appears in the right-half
+  panel immediately.
+- Right-click on the crafted item in Workbench-Inventory → **Take** moves
   it to the Backpack; a "Took <item>" toast appears.
 - Crafting inputs are aggregated from `{backpack, workbench}` (drain order:
   backpack first, then workbench).
@@ -141,6 +142,17 @@ Only one rock is spawned per session.
 
 ## CHANGELOG
 
+### v0.13.0 — Workbench Multi-Panel via lib-core.panel v0.2.0
+
+- Right-click on Workbench now opens BOTH panels simultaneously:
+  `workbench_crafting` (layout="left-half") + `workbench_inv`
+  (layout="right-half").
+- Replaces the v0.12.0 auto-switch workaround that was forced by
+  panel v0.1.1's single-active limitation. The Workbench Gate-2
+  walkthrough per `2026-06-14-phase-D-workbench-design.md` §7 now
+  runs cleanly.
+- Deps: lib-core.panel 0.1.1 → 0.2.0 (multi-active + layout-slots).
+
 ### v0.12.0 — Workbench
 
 - **New: Workbench entity** in the world at (350, 380) — `composition.define_template`
@@ -165,7 +177,8 @@ Only one rock is spawned per session.
   enforces one active widget. Opening both Workbench panels means only
   the second (`workbench_inv`) is visible until the player closes it (X);
   closing it reveals `workbench_crafting`. Proper side-by-side stacking
-  is a future panel-lib slice.
+  is a future panel-lib slice. **Resolved in v0.13.0** via panel v0.2.0
+  multi-active + layout-slots.
 - **Deps**: crafting 0.1.0 → 0.2.0, crafting-display 0.1.0 → 0.2.0.
 - **Notify events-Channel**: filter um `"transfer"` erweitert, damit
   Take-Action-Toasts im events-channel landen.

init.lua

@@ -1,4 +1,4 @@
--- sporel-module-vagrant-skeleton v0.12.0
+-- sporel-module-vagrant-skeleton v0.13.0
 -- Sprite-mode test-chamber: 13-bone humanoid puppet + sprite-tilemap +
 -- hardcoded furniture. Subterrain-style puppet control model:
 -- multi-look-target (aim/soft), slerp body rotation, hip-static legs,
@@ -57,9 +57,12 @@
 -- in the workbench. Take-action in workbench-inv moves an item back
 -- to the backpack. C-key Backpack-Crafting remains via the bw-compat
 -- shim in crafting v0.2.0 (Form-1 bare entity-handle stays valid).
--- Panel-lib v0.1 is single-active so opening both panels lets
--- workbench_inv win; user can close it (X) to reveal workbench_crafting
--- below — Gate-2 walkthrough documents the flow.
+--
+-- v0.13.0: lib-core.panel bumped to 0.2.0 (multi-active + layout-slots).
+-- Workbench-Crafting registers with layout="left-half", Workbench-
+-- Inventory with layout="right-half"; right-click opens both panels
+-- simultaneously side-by-side. Replaces the v0.12.0 single-active
+-- caveat where workbench_inv covered workbench_crafting.
 
 local input       = require("lib-core.input")
 local camera      = require("lib-core.camera")
@@ -297,16 +300,13 @@ end
 -- Workbench-Inventory panels.
 --
 -- lib-core.interaction v0.1.0 is XY-based (not entity-bound); the trigger
--- snapshots the position at registration time. Workbench is static in v0.12
--- so a single registration suffices. Action-name "use" is bound to
--- mouse_right in M.init's input.bind block.
+-- snapshots the position at registration time. Workbench is static so a
+-- single registration suffices. Action-name "use" is bound to mouse_right
+-- in M.init's input.bind block.
 --
--- Note on dual-panel-open: lib-core.panel v0.1.1 enforces a single active
--- widget. Calling panel.open twice means the second call wins
--- (workbench_inv shows on top; workbench_crafting is hidden until the
--- player closes the inv panel via X). This matches the spec §4.4 note that
--- "v0.2 default ist whatever panel-lib default" — proper side-by-side
--- layout is a panel-lib v0.2 task, out of scope for D.2.
+-- panel v0.2.0 supports multi-active panels with layout-slots; the two
+-- panels (workbench_crafting=left-half, workbench_inv=right-half) are
+-- visible simultaneously side-by-side after both panel.open calls.
 local function register_interaction_use(entity)
     local x = entity:get_property("position.x")
     local y = entity:get_property("position.y")
@@ -882,7 +882,8 @@ function M.init(ctx)
             ctx_inner.close_menu()
         end)
 
-    panel.register("workbench_crafting", state.workbench_crafting_widget)
+    panel.register("workbench_crafting", state.workbench_crafting_widget,
+        {layout = "left-half"})
     -- KEIN bind_default_trigger: trigger is the workbench right-click via
     -- register_interaction_use(state.workbench) below.
 
@@ -934,7 +935,8 @@ function M.init(ctx)
             c.close_menu()
         end)
 
-    panel.register("workbench_inv", state.workbench_inv_widget)
+    panel.register("workbench_inv", state.workbench_inv_widget,
+        {layout = "right-half"})
 
     -- Right-click trigger registered AFTER both workbench widgets are
     -- panel.register'd; the callback panel.open()s them by id, so they

manifest.module

@@ -1,6 +1,6 @@
 {
     "id": "vagrant-skeleton",
-    "version": "0.12.0",
+    "version": "0.13.0",
     "kind": "module",
     "api": "^0.1",
     "ci_frames": 60,