release: prepare 0.1.5 with RDNA2 kernels and in-game DLSS/FSR switching

- Add native preset K kernels for gfx1030–gfx1036 using software matrix
  products, with fast and accuracy builds and RDNA2 motion kernels.
- Follow OptiScaler's DLSS and RR preset overrides, sanitize unsupported
  values and select the preset matching the feature's quality mode.
- Enable FSR 4 under NVIDIA GPU spoofing by exposing real AMD PCI IDs
  to OptiScaler and FidelityFX modules; bundle AMD's loader and upscaler.
- Keep K on native kernels in engine auto mode unless HIP is selected,
  and fall back to CUDA for M/L when shader_float8 is unavailable.
- Add native-engine K GPU timings, preset recreation harness controls
  and regression coverage; fix the input-wait test's glibc name clash.
- Update configuration, installer guidance and release documentation,
  simplify the README and move gameplay videos to docs/videos.md.

RDNA2 kernels remain untested on RDNA2 hardware; software matrix
arithmetic was validated against WMMA on RDNA3.

docs/videos.md

@@ -0,0 +1,37 @@
+# Videos
+
+## FSR 4.1.1 vs. DLSS 4.5 comparison
+
+- [Side-by-side comparison: FSR 4.1.1 (left) and DLSS 4.5 preset M (right)](https://cdn.ayois.gay/sk-ant-api03-4Dr0yN5YAzsuAOcyp7KEfeRyB0pbh2iAv2vfywa9QITHIbQScnVQnef9jsxJzDcvWMD13r8C1qGAoQQevjLqzGPT0bAQ9AA)
+- [FSR 4.1.1 standalone video](https://cdn.ayois.gay/sk-ant-api03-YZpWqINTI2HBt6KWJTeyY2b9JJbxUTZdBVRR06KZD7b1x27QLjvQrZZX8Um5sZqkquuOlzJTHUh84FOOLsetNy-PAIiWxAA)
+- [DLSS 4.5 preset M standalone video](https://cdn.ayois.gay/sk-ant-api03-0GLTr6qEYGfUKWYoZeseLdTzPslh1AvlVLdlBEUvV893bi19b7qha5wKnuQXN2tl6l4ffaRKj5warfAFDDjOlYJNYWVQ3AA)
+
+DLSS 4.5 was using the following settings,
+
+```
+PreferAccuracy = true
+
+NativeSwinEncoders = false
+
+MotionVectorDilation = 2
+MotionDilationThinSky = false ; opt-in thin-only sky fill; keep false for current behavior
+```
+
+## Preset videos
+
+Gameplay recordings of each DLSS model at the Quality, Performance and Ultra Performance presets.
+
+**Ready or Not**
+
+| Model | Quality | Performance |
+|---|---|---|
+| DLSS 4.5 | [video](https://cdn.ayois.gay/sk-ant-api03-OPG1vqqsmDkNduG5fXJBelDI-1APyL9_ytJrnOSekZxoh-2NL8NqNuqL3pCI24kJQsudaB896GYpu5TFv93tabAgK1H2sAA) | [video](https://cdn.ayois.gay/sk-ant-api03-d-4XS1it5mtMkm-QRz0Qnkfu9FAjz_dFJURvsh_3gPZTnC1sljpWc28F6fyjUWIC6xlZm-FckWGjaP-KuIipYmroa3dQ8AA) |
+| DLSS 4 | [video](https://cdn.ayois.gay/sk-ant-api03-uXTWm4hN5jZksiSm4fvgIOr0dw43hGJ0TpZLe2ZghIbGb7aR9CGGlTV-1paBYO7G6lzIf83tOrCdaKdJerJ4re6epRWDEAA) | [video](https://cdn.ayois.gay/sk-ant-api03-fcZCkctdFOv513z1u6rPBrRseY47Qnw43Gnv5mZf_GekHw-yUoWYcBixjp2qqqbBIf7sVmht0Y676U96n2cwmFIsRgWkHAA) |
+| DLSS 3 | [video](https://cdn.ayois.gay/sk-ant-api03-_vuywLcsMzZiJxcNgucBeeXFzWi44mes5A1777bg_4XQ2X0MH22J9M7JFpTS0_q6yaGWMXf3FvL8MDiv_dc7UANxrCmlGAA) | [video](https://cdn.ayois.gay/sk-ant-api03-WzaIy34WIesQeOOTVQNXZwpPPE8khmbUynvMw9B-Luj8GFcZ_sJvGXfg6aW00TD0Rr3nWu43ELJGx2K6qs_HL6FkLdmb1AA) |
+
+**Townfall**
+
+| Model | Quality | Ultra Performance |
+|---|---|---|
+| DLSS 4.5 | [video](https://cdn.ayois.gay/sk-ant-api03-p8uL0hOUklvA-BSeEafS8LQU-gayzbqAE3NacWAmckLoXOSf2sXGf7OeG1LmvOqeGFRh_ceCWi4pLBl9yxJlvYwQWH3Y1AA) | [video](https://cdn.ayois.gay/sk-ant-api03-Mz0BzYTrLjaYSuQXtOEHTw4ydYVbPvHmMjflm8UhFp976ftXqMExD8BCMYlo93JLEGwVL3rMWoZR0CH_deJJU7jX8_s3GAA) |
+| DLSS 4 | [video](https://cdn.ayois.gay/sk-ant-api03-WgNoUPTwH0vt55Ag7RaWprXXINU5OOOEtuDXOvIjHgfAScSiIPIJGVaERoF-EA3JO7LS8xkohUlb6AFsW8AVZ2vMB14JwAA) | [video](https://cdn.ayois.gay/sk-ant-api03-skXZVD6G4DUdAfQw0RLz_UJW8GOfBlpZx1N4ezaF_UIXm7OIY1ciQysfRu4zRsxSXA8plZJi4NSzkXkV7Oxmg9ytg9zaaAA) |