Support reporting statistics and currently written byte size from writers

[robert3005]

Allow users to extract the whole file stats from the write instead of having to
read the files back

[codspeed-hq]

Merging this PR will not alter performance

⚡ 4 improved benchmarks
❌ 4 regressed benchmarks
✅ 1656 untouched benchmarks
⏩ 42 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Simulation	encode_varbin[(1000, 8)]	138.9 µs	155.6 µs	-10.79%
❌	Simulation	encode_varbin[(1000, 4)]	138.7 µs	154.6 µs	-10.3%
❌	Simulation	encode_varbin[(1000, 32)]	143.9 µs	160.4 µs	-10.29%
❌	Simulation	encode_varbin[(1000, 2)]	138.3 µs	154 µs	-10.24%
⚡	Simulation	bitwise_not_vortex_buffer_mut[128]	244.4 ns	186.1 ns	+31.34%
⚡	Simulation	bitwise_not_vortex_buffer_mut[1024]	304.7 ns	246.4 ns	+23.68%
⚡	Simulation	bitwise_not_vortex_buffer_mut[2048]	398.6 ns	340.3 ns	+17.14%
⚡	Simulation	eq_i64_constant	298 µs	268.7 µs	+10.9%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing rk/writeapi (9211c32) with develop (002e40a)}

Footnotes

1. 42 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩