Format log history for fallback server

src/openflexure_microscope_server/logging.py

@@ -207,6 +207,18 @@ class OFMHandler(logging.Handler):
         """
         return list(reversed(self._log))
 
+    @property
+    def get_formatted_log_history(self) -> str:
+        """Return the log history as a formatted string.
+
+        This is to be used for the fallback server, the formatting does not contain invocation
+        IDs as no actions should have started.
+        """
+        output = ""
+        for entry in self._log:
+            output += f"[{entry['timestamp']} [{entry['level']}] <{entry['logger']}> {entry['message']}\n"
+        return output
+
 
 class UvicornAccessFilter(logging.Filter):
     """A logging filter to filter out "uvicorn.access" messages."""