initial: inventory-list-display-test v0.1.0 — 9 assertions

Covers: create round-trip, non-container loud-error, action
register/unregister lifecycle, duplicate label + non-function
callback loud-errors, empty default action-set, contents ordering
via _test_get_rows, default icon-resolver property reads, custom
icon-resolver override via set_icon_resolver.

LICENSE

@@ -0,0 +1,24 @@
+Copyright (c) 2026 Calic. All rights reserved.
+
+This software is part of the Sporel platform — **Tier 1 (Official /
+Proprietary)** content per the Three-Tier Licensing Model documented in
+`meta/docs/archive/design/vision.md §Licensing Model` (current source;
+migration to `meta/docs/architecture/licensing-model.md` pending).
+
+⚠ **WIP — Legal review required before public launch.**  The terms below
+reflect design intent only; the formalized license framework will be
+finalized through legal counsel before the first public release. Until
+then, this notice serves as a placeholder defending the platform owner's
+rights against unintentional re-licensing.
+
+No license is granted to copy, modify, distribute, sublicense, or otherwise
+use this software in any form without prior written permission from the
+copyright holder.
+
+References:
+- Tier 1 (this file): all rights reserved, proprietary, sold/distributed
+  via official channels (Steam, etc.)
+- Tier 2 (Semi-Commercial Co-Development): bilateral contracts, revenue-
+  share — see vision.md §Licensing Model
+- Tier 3 (Community Content): CC BY-NC-SA 4.0 + asymmetric CLA — applies
+  to community-uploaded libs/modules/assets, not this repo