progress_bar/status NameError in error path of _run_analysis

[AshayK003]

Problem

In main.py:330-331, the except block calls progress_bar.empty() and status.update(...). If the exception occurs before these are created, this causes a NameError.

Solution

Initialize progress_bar = None and status = None before the try block, and guard the except cleanup.

Acceptance Criteria

• Error messages are always visible to the user, even for early failures

Difficulty: Easy