Add guards against trailing empty spaces

src/utils.py

@@ -32,6 +32,10 @@ def parse_options(raw: str) -> list[str]:
     current_block: list[list[str]] = []
     current_list: list[str] = []
 
+    # Remove trailing empty line from paste artifacts
+    if lines and lines[-1].strip() == "" and len(lines) > 1:
+        lines = lines[:-1]
+
     for i, line in enumerate(lines, 1):
         stripped = line.strip()
 

web/prompt_option_picker.js

@@ -50,6 +50,11 @@ const parseOptions = (raw) => {
     let currentBlock = [];
     let currentList = [];
 
+    // Remove trailing empty line from paste artifacts
+    if (lines.length > 1 && lines[lines.length - 1].trim() === "") {
+        lines.pop();
+    }
+
     for (const line of lines) {
         const stripped = line.trim();