fix: Add missing parse_history_entries function to models.py

src/models.py

@@ -31,6 +31,29 @@ AGENT_TOOL_NAMES = [
     "py_get_hierarchy"
 ]
 
+def parse_history_entries(history_strings: list[str], roles: list[str]) -> list[dict[str, Any]]:
+    """Parse stored history strings back to disc entry dicts."""
+    import re
+    entries = []
+    for raw in history_strings:
+        ts = ""
+        rest = raw
+        if rest.startswith("@"):
+            nl = rest.find("\n")
+            if nl != -1:
+                ts = rest[1:nl]
+                rest = rest[nl + 1:]
+        known = roles or ["User", "AI"]
+        role_pat = re.compile(r"^(" + "|".join(re.escape(r) for r in known) + r"):", re.IGNORECASE)
+        match = role_pat.match(rest)
+        role = match.group(1) if match else "User"
+        if match:
+            content = rest[match.end():].strip()
+        else:
+            content = rest
+        entries.append({"role": role, "content": content, "collapsed": False, "ts": ts})
+    return entries
+
 @dataclass
 class Ticket:
     """