feat(后端架构): 接入GoGPU渲染，支持后端切换

go.sum

@@ -34,6 +34,20 @@ github.com/go-text/typesetting v0.3.5 h1:XZPUooClHY0Vf/rFyUyuPRNEkawARaFzLMQcXLS
 github.com/go-text/typesetting v0.3.5/go.mod h1:XZO1hD+nQVyvVa5IicQk7FsCa4PFQaJ2soWAP1f//68=
 github.com/go-text/typesetting-utils v0.0.0-20260419141703-4ffe8874dabc h1:8FGo2It5K75XkavhTiCKExUfVaVDS1feBnLCru5qeoY=
 github.com/go-text/typesetting-utils v0.0.0-20260419141703-4ffe8874dabc/go.mod h1:3/62I4La/HBRX9TcTpBj4eipLiwzf+vhI+7whTc9V7o=
+github.com/go-webgpu/goffi v0.6.3 h1:p4gKGikHBAQ/8iUiew9MV4C5M1ZGIsk8QGFGuJjMj+A=
+github.com/go-webgpu/goffi v0.6.3/go.mod h1:wfoxNsJkU+5RFbV1kNN1kunhc1lFHuJKK3zpgx08/uM=
+github.com/go-webgpu/webgpu v0.5.5 h1:pIrXzRg0LRlNjNmR+ZNo/ERN88YaObzbCY5oYhir5SA=
+github.com/go-webgpu/webgpu v0.5.5/go.mod h1:vgIuNTa1UlZ4njCGY6Pmp/0c5T5o2Ml2fQ0znLc7B98=
+github.com/gogpu/gg v0.52.5 h1:aDAxjwcUYWTaEcKiAVSX52FPtYKtMhuFYCQYK2SwJwE=
+github.com/gogpu/gg v0.52.5/go.mod h1:mKiEGiR8lT7BCECfSoxRYBQ96HrDc0DHv/CNDxYQG5M=
+github.com/gogpu/gpucontext v0.28.0 h1:W27+0PRnHLVRscDJ2L6r4B1JlaKjlV/EmL0Wxx8vGIc=
+github.com/gogpu/gpucontext v0.28.0/go.mod h1:5rpKj+DpixgAFm8ArBXFXOZQRbeJSFncVMsqyyA9Rhc=
+github.com/gogpu/gputypes v0.5.2 h1:3sbKI0+XW36Ekd3d4QhkbpdY7gbgMVgp8Q4+ZNdGhtE=
+github.com/gogpu/gputypes v0.5.2/go.mod h1:cnXrDMwTpWTvJLW1Vreop3PcT6a2YP/i3s91rPaOavw=
+github.com/gogpu/naga v0.18.0 h1:2y83HUcAnlwEZMuHOiYTMdNYM9J8rev40gkI4zJ96Uk=
+github.com/gogpu/naga v0.18.0/go.mod h1:15sQaHKkbqXcwTN+hHYGLsA0WBBnkmYzne/eF5p5WEg=
+github.com/gogpu/wgpu v0.31.6 h1:WIySgNZHQfUaNRCQ/AzaZpDkcZn5dggqXlRAgpWtVu4=
+github.com/gogpu/wgpu v0.31.6/go.mod h1:r8z3uZOyjl95KXN1eyMxFnwwPMZ0yuBFrLFi8v37QGY=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=