Allocate paged attn cache as empty instead of zeros

[EricLBuehler]

No description provided.

[github-actions]

Code Metrics Report

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 Language            Files        Lines         Code     Comments       Blanks
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 C Header                2           35           28            0            7
 Dockerfile              1           41           22           10            9
 JSON                   12          105          104            0            1
 Python                 64         2729         2359           71          299
 Shell                   1           57           22           18           17
 Plain Text              3         3723            0         2413         1310
 TOML                   18          609          542            2           65
 YAML                    2           21           19            2            0
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 Jupyter Notebooks       4            0            0            0            0
 |- Markdown             2           77           32           31           14
 |- Python               2          205          178            1           26
 (Total)                            282          210           32           40
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 Markdown               44         3439            0         2611          828
 |- BASH                 6          103          100            0            3
 |- JSON                 1           12           12            0            0
 |- Python               7          121          109            0           12
 |- Rust                13          440          373            0           67
 |- TOML                 2           75           63            0           12
 (Total)                           4190          657         2611          922
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 Rust                  298        91478        82131         1880         7467
 |- Markdown           144         1600           25         1454          121
 (Total)                          93078        82156         3334         7588
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 Total                 449       102237        85227         7007        10003
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