Auto-fill journal direction from trade records.

Add a required direction field on the review form, persist it, and set long/short when clicking 填入复盘.

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

lib/instance/templates/index.html

@@ -447,7 +447,7 @@
     </div>
 </div>
 
-<script src="/static/instance_ui.js?v=9"></script>
+<script src="/static/instance_ui.js?v=10"></script>
 <script src="/static/journal_upload_slots.js?v=3"></script>
 <script src="/static/instance_records_mobile.js?v=2"></script>
 <script src="/static/time_close_ui.js?v=3"></script>
@@ -1002,6 +1002,8 @@ function fillJournalFromTrade(t){
     if(stopHint){ stopHint.value = slPx; }
     const dirHint = document.getElementById("direction-hint");
     if(dirHint){ dirHint.value = t.direction || "long"; }
+    const dirNorm = String(t.direction || "long").toLowerCase() === "short" ? "short" : "long";
+    setJournalField("direction", dirNorm);
     setJournalField("early_exit_trigger", "");
     setJournalField("early_exit_note", "");
     const kst = String(t.key_signal_type || "").trim();