Open asset in the scene object context menu, check sum 1103 (#176)

Concepts.md

@@ -59,8 +59,9 @@ active one. `Enter` does the same once the list has keyboard focus (`Tab`).
 A sprite, camera, text or collider has no tab of its own, so a double-click on one does nothing.
 Right-clicking a row offers *Set as active scene*, *Set as start scene* / *Clear start scene*,
 *Create sprite from texture*, *Create animation from texture* and *Delete…*. In
-**Scene objects** it offers *Select asset*, *Add collider*, *Create container*, *Unpack
-container*, *Unparent*, *Expand all* / *Collapse all* and *Remove*.
+**Scene objects** it offers *Select asset*, *Open asset* (the same as double-clicking the asset
+in the asset panel), *Add collider*, *Create container*, *Unpack container*, *Unparent*,
+*Expand all* / *Collapse all* and *Remove*.
 The asset panel and **Scene objects** share the left column; the divider between them drags
 the height from one to the other, and dragged all the way either keeps its header. The split is a
 share of the column, so a taller or shorter window keeps it.

Development.md

@@ -12,7 +12,7 @@ npm run check        # typecheck + lint + format:check + tests, the gate CI runs
                      #   code is lost (tail's is reported), so a red run reads as green
 npm run build        # writes dist/ and regenerates index.html
 ./build.sh           # the same under `set -o pipefail`, for callers that pipe the output
-node tools/seed-e2e.mjs && node tools/e2e.mjs                 # 1102 editor checks, screenshots in /tmp/gm-e2e-*.png
+node tools/seed-e2e.mjs && node tools/e2e.mjs                 # 1103 editor checks, screenshots in /tmp/gm-e2e-*.png
 GM_STEPS=20 node tools/e2e.mjs                                # or 1-12, or 6,20 — a subset while working on one step
 ./e2e.sh start [GM_STEPS]                                     # the same run detached, see below
 ./e2e.sh status                                               # live progress, or the last run's result