v0.4.0 experimental - 22 shared items and action recovery

v0.4.0 experimental

Shared pickup now covers 22 persistent items, using the installed game's save references to keep duplicate axes, buckets and dippers distinct. See docs/SHARED_ITEM_CATALOGUE.md in the ZIP for the exact list.

This build also adds:

• Ordered live update batches and fair scheduling for moving items.
• Retries of the original action ID when a reply is delayed; input waits for the committed result.
• Correlated walking correction, accepted remote-player positions and one pose sender.
• Host continuity when an invalid peer is disconnected.
• Updated local feedback coverage and the combined end-of-build checklist.

Both players must install this same ZIP while the game is closed. Retain each PC's original disposable-profile preparation folder/journal and keep Steam Cloud off until restoration is verified. No game binaries, personal saves, local reports or profile backups are included.

Validation: 6,936 automated C# assertions, 16 tooling fixtures, 19 profile-recovery fixtures, and a metadata check against the shipped legacy game libraries. The world tests use real localhost UDP with synthetic entities. The item bindings were checked against the installed scene's persistent references and body layout. These are not actual multiplayer game tests.

Full-game multiplayer remains unfinished. Special item use/factories, other vehicles, passengers, wheel/door/damage state, Satsuma assembly, shops/jobs, needs/death, weather/NPCs and coherent vanilla saves are not implemented. The Hayosiko supports the existing driver/body experiment only. Manual two-PC validation is still pending; the complete current procedure is docs/PLAYER_CHECKS.md in the ZIP.

Download the attached mod ZIP, not GitHub's automatically generated source archive.