Append dialog options always below existing options

Author: yuripourre

Source/stores.cpp

@@ -2400,9 +2400,15 @@ void StartStore(TalkID s)
 				}
 			}
 
-			// Insert extra options into empty even-numbered lines before the leave option.
+			// Insert extra options into empty even-numbered lines before the leave option,
+			// after any existing menu lines (so e.g. "Talk to Farnham" stays above mod options).
+			int firstExtraOptionLine = 10;
+			for (int line = 10; line < lastSelectableLine; line += 2) {
+				if (TextLine[line].hasText())
+					firstExtraOptionLine = line + 2;
+			}
 			size_t optIdx = 0;
-			for (int line = 10; line < lastSelectableLine && optIdx < extraOpts->size(); line += 2) {
+			for (int line = firstExtraOptionLine; line < lastSelectableLine && optIdx < extraOpts->size(); line += 2) {
 				if (TextLine[line].hasText()) continue;
 				std::string label = (*extraOpts)[optIdx].getLabel();
 				if (!label.empty()) {

Source/stores.h

@@ -130,7 +130,8 @@ DVL_API_FOR_TEST const char *TownerNameForTalkID(TalkID s);
 /**
  * @brief Registers a dynamic dialog option for a towner's talk menu.
  *
- * Options are inserted into empty even-numbered lines before the towner's "leave" option.
+ * Options are inserted into empty even-numbered lines before the towner's "leave" option,
+ * after existing menu lines on even rows (so default choices like "Talk to …" stay first).
  * If no empty lines are available the option is silently skipped for that dialog session
  * and a warning is logged.
  *