aprender 0.30.0

Next-generation ML framework in pure Rust — `cargo install aprender` for the `apr` CLI
Documentation
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<!-- Example: cargo run -p aprender-core --example conv_layout_dogfood -->
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# Conv Layout Optimization Dogfood

Dogfood test for GH-159: Conv layout optimization with im2col+GEMM.

Verifies that Conv1d and Conv2d produce correct output shapes across
multiple layout configurations (NCHW, NHWC) and kernel layouts.

## Run

```bash
cargo run --release --example conv_layout_dogfood
```

## Source

```rust,ignore
// Run this example:
//   cargo run --example conv_layout_dogfood
//
// See the CLI reference and source code in crates/ for implementation details.
```