移除行动点系统，倒计时本地走秒，字体优化

为什么：游戏的时间（40 分钟一天、只能自然流动）本身就是唯一的行动节奏
阀门，再叠一层"每天 10 点行动点"纯属重复惩罚——浇水还要体力既不拟真
也不好玩。删掉之后，稀缺的只剩时间本身，放置玩法的定位反而更纯粹。

改动范围（引擎到界面连根拔）：
- config 删 START_AP/AP_COST；models 删 ap 字段与 max_ap，存档 payload
  里的旧 ap 键被 from_dict 自然忽略；
- engine 删 _spend_ap 与全部 8 个调用点、每日恢复逻辑与日志；
  available_actions 不再按行动点筛，cost 只剩金币；
- storage 建表去掉 ap 列，老库在 connect() 里 ALTER TABLE DROP COLUMN
  无痛迁移（实测 saves/farm.db 已自动迁完）；
- bot 删 AP 分支（无 AP 后 available_actions 恒可用）；client/TUI/CLI/
  README/帮助文本同步清理。

网页端顺带两件事：
- "下一天"倒计时改为客户端本地走秒——SSE 只在有变化时推送，以前倒计时
  只在推送瞬间跳变，现在每秒都在动（记基点 + 1s 定时器补齐）；
- 字体优化：页面字体栈补齐 MiSans/HarmonyOS Sans/PingFang，正文字号
  14→15，统计数字 tabular-nums；canvas 小字统一字体栈并加粗提对比度。

测试适配：删 2 个 AP 专属用例（无 AP 可测）、改名/收敛 5 个，
532 项全绿（skip 39），ruff/pyright 干净。真机验证：老库迁移、
统计条无行动点、倒计时逐秒递减（39:04→39:02）、动作不再报 no_ap。

farm/server/webui.py

@@ -27,7 +27,8 @@ DASHBOARD_HTML = r"""<!DOCTYPE html>
   * { box-sizing: border-box; }
   body {
     margin: 0; background: var(--bg); color: var(--ink);
-    font: 14px/1.6 "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
+    font: 15px/1.6 "Segoe UI Variable Text", "Segoe UI", "MiSans",
+    "HarmonyOS Sans SC", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
   }
   header {
     display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
@@ -53,7 +54,7 @@ DASHBOARD_HTML = r"""<!DOCTYPE html>
   main { padding: 16px 20px 40px; max-width: 1180px; margin: 0 auto; }
   .stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(118px, 1fr)); gap: 10px; }
   .stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; }
-  .stat b { display: block; font-size: 18px; }
+  .stat b { display: block; font-size: 18px; font-variant-numeric: tabular-nums; }
   .stat small { color: var(--dim); }
   .cols { display: grid; grid-template-columns: 1.35fr 1fr; gap: 14px; margin-top: 14px; }
   @media (max-width: 900px) { .cols { grid-template-columns: 1fr; } }
@@ -206,6 +207,7 @@ DASHBOARD_HTML = r"""<!DOCTYPE html>
 <script>
 const $ = (id) => document.getElementById(id);
 let es = null, state = null, catalog = null, pollTimer = null, me = null;
+let tickLeft = null, tickStamp = 0;
 
 const cropNames = {
   wheat: "小麦", carrot: "胡萝卜", tomato: "番茄",
@@ -361,12 +363,16 @@ function render() {
     ["第几天", s.day],
     ["天气", (s.weather_name || "—") + " → " + (s.forecast_name || "?")],
     ["金币", s.gold], ["等级", "Lv." + s.level + " (" + s.exp + "/" + s.exp_needed + ")"],
-    ["行动点", s.ap + "/" + s.max_ap], ["饲料", s.feed],
+    ["饲料", s.feed],
     ["仓储", (s.storage_used || 0) + "/" + (s.granary_capacity || 0)],
     ["净资产", Math.round(s.net_worth)],
     ["在线", s.online !== undefined ? s.online : "—"],
-    ["下一天", fmtLeft(s.seconds_to_tick)]
-  ].map((p) => '<div class="stat"><small>' + p[0] + '</small><b>' + p[1] + '</b></div>').join("");
+    ["下一天", fmtLeft(s.seconds_to_tick), "tickcell"]
+  ].map((p) => '<div class="stat"><small>' + p[0] + '</small><b' +
+    (p[2] ? ' id="' + p[2] + '"' : '') + '>' + p[1] + '</b></div>').join("");
+  /* 倒计时基点：SSE 只在有变化时推送，中间的每一秒由本地定时器补齐 */
+  tickLeft = (s.seconds_to_tick === undefined || s.seconds_to_tick === null) ? null : s.seconds_to_tick;
+  tickStamp = Date.now();
 
   /* 农田 */
   $("plots").innerHTML = s.plots.map((p) => {
@@ -629,7 +635,7 @@ function mapDrawTile(p, x, y, ts) {
     c.restore();
   } else {
     c.fillStyle = "rgba(60,40,20,.5)";
-    c.font = '11px "Segoe UI",sans-serif';
+    c.font = '600 11px "Segoe UI","Microsoft YaHei",sans-serif';
     c.textAlign = "center"; c.textBaseline = "middle";
     c.fillText("空地", x + ts / 2, y + ts / 2);
   }
@@ -648,7 +654,7 @@ function mapDrawTile(p, x, y, ts) {
     mapRoundRect(x - 1.5, y - 1.5, ts + 3, ts + 3, 8); c.stroke();
   }
   c.fillStyle = "rgba(255,255,255,.75)";
-  c.font = '10px "Segoe UI",sans-serif';
+  c.font = '600 10px "Segoe UI",sans-serif';
   c.textAlign = "left"; c.textBaseline = "top";
   c.fillText(String(p.position), x + 4, y + 3);
 }
@@ -707,7 +713,7 @@ function mapDraw(now) {
     c.fillRect(pen.x + (pen.w / posts) * i - 2, pen.y + pen.h - 5, 4, 10);
   }
   c.fillStyle = "rgba(60,45,25,.75)";
-  c.font = '11px "Segoe UI","Microsoft YaHei",sans-serif';
+  c.font = '600 11px "Segoe UI","Microsoft YaHei",sans-serif';
   c.textAlign = "center"; c.textBaseline = "top";
   c.fillText("牧场", pen.x + pen.w / 2, pen.y + 3);
   (MAP.walkers || []).forEach((wd) => {
@@ -746,7 +752,7 @@ function mapDraw(now) {
       c.font = '22px "Segoe UI Emoji","Noto Color Emoji",sans-serif';
       c.textAlign = "center"; c.textBaseline = "top";
       c.fillText(info[0], cx, y0 + 4);
-      c.fillStyle = "#3a4a33"; c.font = '10px "Segoe UI","Microsoft YaHei",sans-serif';
+      c.fillStyle = "#3a4a33"; c.font = '600 11px "Segoe UI","Microsoft YaHei",sans-serif';
       c.fillText(kv[1] > 1 ? info[1] + " ×" + kv[1] : info[1], cx, y0 + 32);
     });
   }
@@ -943,6 +949,13 @@ $("logout").addEventListener("click", async () => {
   applyIdentity();
   $("loginname").focus();
 });
+/* 倒计时本地走秒：状态只在动作/推送时到达，中间的每一秒自己补 */
+setInterval(() => {
+  if (tickLeft === null) return;
+  const el = $("tickcell");
+  if (el) el.textContent = fmtLeft(Math.max(0, tickLeft - (Date.now() - tickStamp) / 1000));
+}, 1000);
+
 /* ---- 启动 ---- */
 $("token").value = lsGet("sf.token") || "";
 $("token").addEventListener("change", () => {