v0.3.0 · 简体中文

本版本是「吉祥物生态 + 境界档位」大版本。

✨ 新增

境界档位系统（推理等级联动） — 皮肤中心新增境界滑条，默认跟随 DSH 推理等级自动升降档，也可手动锁定。档位联动吉祥物造型、光标配色、背景装饰密度：
- 凡人修仙传系列：炼气 → 筑基 → 结丹 → 元婴（韩立四档全新生图）
- 英雄联盟系列：基础 → 史诗 → 传说 → 终极（阿狸一路进化到九尾金色女神）
- 服务端支持档位资产缺失自动回退
任务完成提醒 — DSH 宿主本身没有任务完成通知，皮肤中心补上：合成提示音（音色按皮肤系列：古筝拨弦 / 号角双响 / 清脆叮咚）+ 吉祥物庆祝动作 + 完成专用语录。设置可切换关 / 声音 / 动作 / 声音+动作
吉祥物满屏漫步 — 全屏随机走位，驻足点自动避开正文文字列与会话侧栏
梗文化皮肤「梁神 · 深度求道」 — 社区梗「薛定谔的梁」：凉子（冻得发抖抱 GPU）→ 梁子（卫衣淡定）→ 梁圣（圣袍 token 光环）→ 梁神（始皇帝形态：龙袍冕旒主板龙椅）。卡通 caricature 非真人肖像，笏板「梁」字光标，200 句双语梗语录
动画播放策略设置 — 「跟随系统 / 始终播放」，系统关闭动画效果时皮肤动效不再被连坐静止
皮肤中心支持以 DSH profile bundle 方式安装

试穿语义重构：试穿 = 临时预览（刷新还原、不写偏好），「应用并保存」才是唯一持久化入口；常驻决策 toast 改为 3.5 秒轻提示，决策入口移入面板常驻试穿条
韩立按钮符文不再污染按钮可访问名称（读屏友好）
内置皮肤 17 → 18 款（测试与 README 同步）

The "mascot ecosystem + power tiers" milestone.

Power tier system (reasoning-effort linked) — a tier slider in the Skin Studio follows the DSH reasoning effort by default (or locks manually). Tiers drive mascot sprites, cursor tints, and decoration density:
- Mortal's Journey series: Qi Condensation → Foundation → Core Formation → Nascent Soul (four freshly generated Han Li forms)
- League of Legends series: Base → Epic → Legendary → Ultimate (Ahri evolves into the nine-tail golden goddess)
- Server falls back to base assets when a tier image is missing
Task-done alerts — DSH itself has no task-completion notification; the Skin Studio adds one: synthesized chime (per-series timbre: guzheng pluck / horn fanfare / crisp ding) + mascot celebration + dedicated done-quotes. Toggleable off / sound / motion / both
Full-screen mascot wandering — roams the whole page; rest points avoid the conversation text column and the session sidebar
Meme skin "Liang Shen · Deep Quest" — the community's "Schrödinger's Liang": Chilly (shivering, hugging a GPU) → Liang-zi (calm hoodie) → Saint (token halo) → Emperor (Qin Shi Huang form: dragon robes, motherboard throne). Cartoon caricature — not a real person's likeness; "梁" tablet cursor and 200 bilingual meme quotes
Animation policy setting — "Follow system / Always play": skin motion no longer frozen when the OS disables animations globally
Skin Studio installable as a DSH profile bundle

Try-on semantics rework: try-on is a temporary preview (reverts on refresh, never writes preference); "Apply & save" is the only persistence path; the never-dismissable toast becomes a 3.5s hint with decisions moved to an in-panel try-on bar
Han Li's button runes no longer pollute accessible button names (screen-reader friendly)
Built-in skins 17 → 18 (tests and README synced)

Full changelog: CHANGELOG.md