Add back sample testing

[AnIrishDuck]

For some reason adding the test_log annotation causes the tests to run twice. They still seem to run fine so I'm not really sure this is worth digging further.

Some example data:

2026-02-19T22:32:38.472479Z TRACE plateau_data_arrow_rs::segment::arrow::test: batch=RecordBatch { schema: Schema { fields: [Field { name: "field_0", data_type: Struct([Field { name: "zlnfz", data_type: Float32, nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} }, Field { name: "mnxs", data_type: Float64, nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} }]), nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} }], metadata: {} }, columns: [StructArray
-- validity:
[
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
  ...559 elements...,
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
  valid,
]
[
-- child 0: "zlnfz" (Float32)
PrimitiveArray<Float32>
[
  -1881199.9,
  -4.1987924e22,
  81.86666,
  61.18479,
  4391395.0,
  -1.5368135e38,
  -3.1239293e30,
  -2312.4214,
  0.0,
  1.2814945e17,
  ...559 elements...,
  -1.7369331e28,
  null,
  NaN,
  -1.7468321e27,
  0.0,
  -8182.2363,
  -1.7144185e37,
  0.0,
  1.9535753,
  -1.0609469e17,
]
-- child 1: "mnxs" (Float64)
PrimitiveArray<Float64>
[
  -1.8565732740381556e222,
  -3.0978768849667e36,
  -9.566791367360479e126,
  null,
  4.909779727384099e135,
  -9.845685330487418e47,
  -1.7976931348623157e308,
  5.490407855329757e59,
  null,
  -4.257076580319597,
  ...559 elements...,
  -1.7825067579724748e77,
  9.185123816436956e59,
  2.882956380911107e291,
  2.906457698910692e206,
  -6.8747798496545e104,
  -5.905776080926193e40,
  -6.337146144106787e235,
  5.0534676081780744e265,
  -2.759697850185066e210,
  null,
]
]], row_count: 579 }

And:

2026-02-19T22:39:18.403591Z TRACE plateau_data_arrow_rs::segment::arrow::test: batch=RecordBatch { schema: Schema { fields: [Field { name: "field_0", data_type: Int16, nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} }], metadata: {} }, columns: [PrimitiveArray<Int16>
[
  -6110,
  5053,
  -20643,
  9169,
  899,
  23772,
  -10582,
  32767,
  32767,
  -21054,
  ...101 elements...,
  -15438,
  22402,
  4346,
  -5365,
  16465,
  -32768,
  -17404,
  3937,
  -32768,
  10414,
]], row_count: 121 }

[JONBRWN]

looks good, needs a formatting fix