🏛️ Museum 博物館

What it does 做乜嘢

The Museum is one of the town's thirteen population-gated community buildings, unlocking at population 30. It is where completed six-fragment artifacts from the mine are turned in for cash and a small permanent bonus. 博物館係小鎮十三座按人口解鎖嘅社區建築之一，人口 30 解鎖。喺呢度可以將礦場砌好嘅六塊一套文物換 Cash 同一個細細嘅永久獎勵。

How it works 點運作

Because artifacts require six fragments each, and fragments drop from mine digging, the Museum is the payoff end of a chain that starts with spending energy underground — it gives long-run mine engagement a durable, permanent reward rather than only a one-off cash payout. 因為一件文物要六塊碎片，而碎片要靠喺礦場度挖先有，博物館就係呢條由喺地底用能量開始嘅鏈嘅回報終點——佢俾長期挖礦一個持久、永久嘅獎勵，而唔係淨係一次性嘅 Cash。

Failure modes 失敗情況

An incomplete artifact simply cannot be turned in yet; the interface should show exactly how many of the six fragments are held so progress toward the next reward is always legible. 未夠六塊嘅文物就係未交得，介面應該清楚顯示六塊入面收埋幾多塊，等玩家隨時知離下個獎勵有幾遠。

What is not yet implemented 仲未整好嘅部分

The published v0.1.0-22 desktop baseline is available (see the changelog). The artifact set list and its permanent-bonus effects are balance data, checked alongside the mine's tile-content tables for the same reachability guarantees. 已發佈嘅 v0.1.0-22 桌面基準而家可以下載（睇更新日誌）。文物組合清單同佢嘅永久獎勵效果都係平衡數據，同礦場嘅格內容表一齊做可達性驗證。