ggml webgpu: unary op suppport, code refactoring, ops support (#17764)

* Squashed commit of the following:

commit b3c6bf4b0450d8d452b934df27a0fb7cb53cd755
Author: Abhijit Ramesh <[email protected]>
Date:   Mon Dec 1 18:29:00 2025 -0800

    ggml webgpu: fix xielu parameter passing (#11)

    The XIELU operation was incorrectly using static_cast to convert
    float parameters to uint32_t, which converted numeric values instead
    of preserving IEEE 754 bit patterns. This caused incorrect values
    to be interpreted by the GPU shader.

    * Use reinterpret_cast to preserve float bit patterns when passing
      through uint32_t params buffer
    * Update WGSL shader parameter types from u32 to f32
    * Re-enable XIELU support (was disabled due to numerical issues)

    Fixes NMSE test failures for XIELU operation on WebGPU backend.

commit 5ca9b5e49ea7cddc9ab7c8b43a11a9c76a4dff4a
Author: neha-ha <[email protected]>
Date:   Tue Nov 18 12:17:00 2025 -0800

    Refactored pipelines and workgroup calculations (#10)

    * refactored pipelines

    * refactored workgroup calculation

    * removed commented out block of prior maps

    * Clean up ceiling division pattern

    ---------

    Co-authored-by: Neha Abbas <[email protected]>
    Co-authored-by: Reese Levine <[email protected]>

Author: James Contini <[email protected]>
Date:   Wed Oct 29 23:13:06 2025 -0700

    formatted embed wgsl and ggml-webgpu.cpp

commit e1f6baea31645e5d96ad53664acae856f74b96f4
Author: James Contini <[email protected]>
Date:   Wed Oct 29 23:08:37 2025 -0700

    implemented REPL_Template support and removed bug in unary operators kernel

commit 8c70b8fece445cdc9a8c660dbddbf201e52da2bb
Author: James Contini <[email protected]>
Date:   Wed Oct 15 16:14:20 2025 -0700

    responded and dealt with PR comments

commit f9282c660c10dec4487d434549bdb707a9cd9f37
Author: James Contini <[email protected]>
Date:   Sun Oct 12 13:41:41 2025 -0700

    removed unnecesarry checking if node->src[1] exists for unary operators

commit 4cf28d7dec41c29186d66152735b244c5699f9dc
Author: James Contini <[email protected]>
Date:   Sun Oct 12 13:32:45 2025 -0700

    All operators (inlcluding xielu) working

commit 74c6add1761a59d2c2ff60b60e8ad3c8300f6d3e
Author: James Contini <[email protected]>
Date:   Fri Oct 10 13:16:48 2025 -0700

    fixed autoconfig

commit 362749910be4f0120c8ffb21ceddeb7d2c088e51
Author: James Contini <[email protected]>
Date:   Fri Oct 10 13:10:46 2025 -0700

    removed vestigial files

commit cb0858333785757804c5104e59c4981843207c16
Author: James Contini <[email protected]>
Date:   Fri Oct 10 12:59:32 2025 -0700

    abides by editor-config

commit 5360e2852a4b51197d7d67d0a5d42e908b02d7ed
Author: James Contini <[email protected]>
Date:   Fri Oct 10 12:45:57 2025 -0700

    rms_norm double declaration bug atoned

commit 7b09baa4aa53711be5a126043670cc182c78bfcd
Merge: 8a6ec843 74b8fc1
Author: James Contini <[email protected]>
Date:   Fri Oct 10 11:50:03 2025 -0700

    resolving merge conflicts

commit 8a6ec843a50ab82f8cef59b4558eb63f318ba02d
Author: James Contini <[email protected]>
Date:   Wed Oct 8 18:06:47 2025 -0700

    unary operators pass ggml tests

commit c3ae38278a2db236adc5912c9140e4f0d63f2c19
Author: James Contini <[email protected]>
Date:   Wed Oct 1 16:22:40 2025 -0700

    neg passes backend test

commit aa1c9b2f8877a405470ca56709c42a1fd43713de
Author: James Contini <[email protected]>
Date:   Tue Sep 30 23:55:27 2025 -0700

    neg f16xf32xip builds and runs, havent actually ran a model that uses neg kernel yet though

Co-authored-by: James Contini <[email protected]>
Co-authored-by: Neha Abbas <[email protected]>
Co-authored-by: Abhijit Ramesh <[email protected]>

* Remove extra code and format

* Add ops documentation (finally)

* Update ggml/src/ggml-webgpu/wgsl-shaders/embed_wgsl.py

Co-authored-by: Sigbjørn Skjæret <[email protected]>

---------

Co-authored-by: James Contini <[email protected]>
Co-authored-by: Neha Abbas <[email protected]>
Co-authored-by: Abhijit Ramesh <[email protected]>
Co-authored-by: Sigbjørn Skjæret <[email protected]>

Author: 5 people