The salvageable object dropped by destroyed ships and defence stations is
now named "debris" (it carries a scrap amount), resolving the overload
where "scrap" meant both the resource and the dropped object. Renames the
REQ-*-SCRAP-* selection/drop requirement IDs to REQ-*-DEBRIS-*, adds a
single-debris stats panel and mixed field-selection summary, and renames
the scrap_despawn_seconds config key to debris_despawn_seconds. The scrap
resource, scrap_drop_formula, and scrap_per_threat are unchanged.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Y7N59FsLA5e2kuVdqe4Uhc