Reduce PyPI artifact size by excluding AsyncTI4 image assets from package build

[Copilot]

PyPI publish was failing with 400 File too large because the build configuration bundled the full AsyncTI4 resources tree from the submodule, including large image directories. This change narrows package contents to only the JSON-backed data directories required by the rules engine runtime.

• Packaging scope reduction (Hatch build config)

  • Updated pyproject.toml wheel force-include paths to include only:
    • data/TI4_map_generator_bot/src/main/resources/data
    • data/TI4_map_generator_bot/src/main/resources/planets
    • data/TI4_map_generator_bot/src/main/resources/systems
  • Updated sdist only-include to the same three directories instead of the entire resources tree.

• Distribution content impact

  • Removes bundled image assets (.png, .jpg, .jpeg, .gif, .webp, .svg) from wheel/sdist.
  • Keeps required structured game data available to loaders without shipping non-runtime media.

• Representative config change

  [tool.hatch.build.targets.wheel.force-include]
  "data/TI4_map_generator_bot/src/main/resources/data" = "ti4_rules_engine/data/TI4_map_generator_bot/src/main/resources/data"
  "data/TI4_map_generator_bot/src/main/resources/planets" = "ti4_rules_engine/data/TI4_map_generator_bot/src/main/resources/planets"
  "data/TI4_map_generator_bot/src/main/resources/systems" = "ti4_rules_engine/data/TI4_map_generator_bot/src/main/resources/systems"