Malte Langkabel 9f390db80c Implement REQ-UI-PORT-TARGET-GLYPH builder-ghost port preview
While in builder mode, draw an additional directional glyph centered in
each output port's target cell (the cell just outside the footprint the
port pushes into), previewing where output will flow before placement.

- drawPortGlyph gains a `centered` flag so it can render either offset
  toward the port body's exit edge (existing on-tile glyph) or centered
  in a given tile (the new target cell).
- drawBuildingGhost gains `showPortTargetGlyphs`, passed true only for the
  single-building builder ghost and false for the blueprint-placement
  ghost, so the preview is builder-mode only.
- The Tunnel Entry is excluded — it receives items from any non-mouth edge
  rather than emitting into one adjacent cell.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Y7N59FsLA5e2kuVdqe4Uhc
2026-07-19 22:09:50 +02:00
2026-07-19 21:14:31 +02:00
2026-07-12 09:16:49 +02:00
2026-04-19 10:19:27 +02:00
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