script should not crash when zero features are present

[smnorris]

Not sure if the count is correct, but regardless - script should fail more gracefully than this:

bcdata bc2pg -r whse_land_and_natural_resource.prot_current_fire_polys_sp
2025-09-30 02:25:43,020:INFO:bcdata.wfs: Total features requested: 0
Traceback (most recent call last):
  File "/opt/venv/bin/bcdata", line 7, in <module>
    sys.exit(cli())
             ^^^^^
  File "/opt/venv/lib/python3.12/site-packages/click/core.py", line 1462, in __call__
    return self.main(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.12/site-packages/click/core.py", line 1383, in main
    rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.12/site-packages/click/core.py", line 1850, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.12/site-packages/click/core.py", line 1246, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.12/site-packages/click/core.py", line 814, in invoke
    return callback(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.12/site-packages/bcdata/cli.py", line 378, in bc2pg
    out_table = bcdata.bc2pg(
                ^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.12/site-packages/bcdata/bc2pg.py", line 98, in bc2pg
    df = WFS.request_features(url=urls[0], as_gdf=True, lowercase=True)
                                  ~~~~^^^
IndexError: list index out of range

[smnorris]

Something was definitely off with the data or the service:

$ bcdata info whse_land_and_natural_resource.prot_current_fire_polys_sp --count
309

[smnorris]

Scheduled job failed again with 0 active fire polys, but on check this morning there are still 309.
However, presumably Jan01 there will actually be zero fires.