fix(hub): archive labels, symbol column, and time-close dropdown

Force exchange_key on archive sync; add contract column and tag select styles on inner-light-mind; serve time_close_ui.js on instances so order/key time-close duration can be selected.

Co-authored-by: Cursor <cursoragent@cursor.com>

strategy_templates/key_monitor_panel.html

@@ -157,14 +157,16 @@
         <label id="key-breakeven-wrap" style="display:inline-flex;align-items:center;gap:4px;font-size:.85rem;color:#9aa">
             <input type="checkbox" name="breakeven_enabled" value="1" id="key-breakeven-cb"> 移动保本
         </label>
-        <label id="key-time-close-wrap" class="key-time-close-wrap" style="display:inline-flex;align-items:center;gap:4px;font-size:.85rem;color:#9aa">
-            <input type="checkbox" name="time_close_enabled" value="1" id="key-time-close-cb"> 时间平仓
-            <select name="time_close_hours" id="key-time-close-hours" disabled>
+        <span id="key-time-close-wrap" class="key-time-close-wrap" style="display:inline-flex;align-items:center;gap:4px;font-size:.85rem;color:#9aa">
+            <label style="display:inline-flex;align-items:center;gap:4px;margin:0;cursor:pointer">
+                <input type="checkbox" name="time_close_enabled" value="1" id="key-time-close-cb"> 时间平仓
+            </label>
+            <select name="time_close_hours" id="key-time-close-hours" title="持仓满该时长后自动平仓">
                 <option value="1">1h</option>
                 <option value="2">2h</option>
                 <option value="4" selected>4h</option>
             </select>
-        </label>
+        </span>
         <button type="submit">添加</button>
     </form>
     <details class="tip-collapse key-rule-collapse">