feat(gfx): 新增加载屏油画、主界面音乐与配套工具

fix(on_actions): 朝贡国不再套用或清除宗主颜色

fix(history): 王朝名直写中文并补齐王朝翻译工具链

feat(localisation): 加载提示替换为 67 条考据后的历史名言

fix(localisation): replace invalid text color code with grey

refactor(province-names): drop entries shadowed by _new culture files

perf(gfx): unify event picture DDS to DXT5 + 10mip chain

fix(localisation): translate all remaining ship names to Chinese

fix(validation): restore Naga adjective and filter sea zones

docs(changelog): fold unreleased entries into 0.1.0 release notes

chore(tooling): tighten docs and prune tests

fix(localisation): translate remaining culture names

fix(localisation): use English-only vanilla sources

feat(integration): add merged EU4 content and localization

docs(hub): add dataset card metadata

docs(readme): streamline project overview

perf(localisation): add incremental parallel build

feat: establish Ab Integro 0.1.0 baseline