fix: remove inline estimated TP preview from fixed RR order form

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

lib/instance/templates/embed_page_fragment.html

@@ -67,7 +67,6 @@
                 <span class="symbol-live-price-note">下单成交价以交易所成交回报为准</span>
                 <input id="order-sl" name="sl" step="any" placeholder="止损价格" required>
                 <input id="order-fixed-rr" name="fixed_rr" type="number" min="0.01" step="0.01" placeholder="盈亏比(默认1.5)" value="1.5" title="止盈距离=止损距离×盈亏比">
-                <span id="order-tp-preview" style="display:none;font-size:.8rem;color:#8fc8ff;align-self:center">预估止盈：—</span>
                 <input id="order-tp" name="tgt" step="any" placeholder="止盈价格" style="display:none">
                 <input id="order-sl-pct" name="sl_pct" type="number" min="0.01" step="0.01" placeholder="止损%" style="display:none">
                 <input id="order-tp-pct" name="tp_pct" type="number" min="0.01" step="0.01" placeholder="止盈%" style="display:none">