Release pass: fix crashes, freezes and races, cut VRAM use, and translate more shaders.

Crashes: the render-target heap (HeapDef DynamicTextureAllocatorMem and its parent) grows with the widescreen
picture, so the pause menu no longer reads a null block at 5120x2160; texture uploads keep the game's memory mapped
while they copy it, so UnmapPhysicalMemory no longer pulls it away mid-copy; DLSS Frame Generation no longer crashes
in Streamline's set-up (physical devices and the window surface go through its proxies, its swapchain images are
counted first, resources are tagged per frame); a stale core-wait target is cleared before its thread is freed.

Freezes and races: a resize during a swapchain rebuild is kept, a failed frame generation swapchain is retried
instead of replaced by a plain one, three acquire timeouts in a row rebuild the swapchain, device waits take the
queue lock, a translator child that stops answering times out, an in-flight compute pipeline builds at normal
priority, a save Commit started before the window closes finishes and none starts after, a settings change just
before closing is saved, and a movie sample taken before a flush is dropped.

HDR: Enhanced HDR extends the game's own tonemap so highlights go above the picture's white (the hue slider,
which no longer applies, is gone from the menu); frame generation gets a HUD-less picture, the HDR flag and the HDR10
metadata under HDR too.

Memory: ASTC textures are encoded to BC3 unless the PC has 20 GiB of VRAM and 48 GiB of RAM, as Windows charges video
memory to the commit charge (a long session held 17 GiB of RGBA8 textures and 45.7 GiB of commit on a 32 GiB PC).

Shaders: the translator lowers spill-mode programs with more than eight uniform register groups in a wider spill
layout, and local loads and stores with a uniform-register address (36029 of the game's 36031 variants translate,
20 failed before).

The launcher release ships the shader tools and AMD's FidelityFX library (make_launcher.py --ffx); windres there gets
the toolchain on PATH.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.github/ISSUE_TEMPLATE/1-crash.yml

@@ -12,7 +12,7 @@ body:
     id: version
     attributes:
       label: Version
-      description: The title line of the settings menu (F1), for example "Ocarina Recomp 0.0.1-ocarina - game 1.1.1".
+      description: The title line of the settings menu (F1), for example "NX2navi 0.0.1-ocarina - game 1.1.1".
     validations:
       required: true
   - type: input