perf: fix deferred divide precision, threadlocal TLS, MSVC target

Removed deferred divide from both ray-tri functions -- the det-scaled
epsilon comparisons lose precision for near-parallel rays, potentially
accepting triangles the original rejects. Downstream SetupBoxFrustum
then writes to wrong globals near 0xCE6738 (SGroupPtr), causing
ERROR #124 on exit.

inflate_hook: replaced manual FS:0x24 thread ID pool with Zig native
threadlocal. Fixes potential crash on Wine where FS segment layout
may differ.

Build: switched from GNU to MSVC ABI (4-5K smaller per DLL, no
.eh_frame unwind tables). Added setjmp.h stub for libdeflate MSVC
build. Added noperf build variant (zig build noperf).

RELEASING.md

@@ -38,7 +38,21 @@ git push origin main
 
 After that, the remote `main` only needs updating when `DLL_README.md` changes.
 
-## 1. Build DLLs
+## 1. Bump module versions
+
+Each module has a `version` field in `build.zig`'s `module_list`. This is what
+`GetWeirdUtilsVersion()` reports to Lua addons. Before building, bump the
+version for any module that has changed since the last release:
+
+```zig
+// build.zig — module_list
+.{ .name = "minimapicons", .version = "1.1", ... },
+```
+
+Only bump modules that actually changed. Use `git log --oneline -- src/<module>/`
+to check what changed since the last release tag.
+
+## 2. Build DLLs
 
 Decide which modules to include in this release. Check `build.zig` for the
 current list of module flags (`b.option(bool, ...)` declarations) and their
@@ -71,6 +85,16 @@ zig build all-variants -Doptimize=ReleaseSmall
 
 This builds all variants - you only attach the ones for this release.
 
+### No-performance variant
+
+```sh
+zig build noperf -Doptimize=ReleaseSmall
+```
+
+Builds `weirdutils_noperf.dll` - the combined DLL with all default modules
+except `weirdperformance`. Provided as a release asset for users who experience
+issues with the performance module (e.g. Wine compatibility).
+
 ### Output locations
 
 | Artifact | Path |
@@ -84,7 +108,7 @@ Verify:
 ls -lh zig-out/bin/weirdutils.dll zig-out/variants/*.dll
 ```
 
-## 2. Update the remote README
+## 3. Update the remote README
 
 The remote README should match the features in this release. Start from
 `DLL_README.md` and remove the sections for modules not being released -
@@ -103,7 +127,7 @@ git commit -m "Update README for vX.Y.Z"
 git push origin main
 ```
 
-## 3. Write the release notes
+## 4. Write the release notes
 
 Use this template - fill in the sections that apply, delete the rest.
 Use `-` (not em dash) anywhere a dash would be used.
@@ -132,7 +156,7 @@ of what they're getting:
 - `weirdutils.dll` includes all features; individual DLLs are also provided
 ```
 
-## 4. Create the release and upload DLLs
+## 5. Create the release and upload DLLs
 
 Uses `tea` (Gitea/Forgejo CLI) which handles release creation, tagging, and
 asset upload in one command. The tag is created on the remote automatically.
@@ -167,7 +191,7 @@ tea release assets delete --repo MarcelineVQ/WeirdUtils -y v0.4.0 minimapicons.d
 tea release assets create --repo MarcelineVQ/WeirdUtils v0.4.0 zig-out/variants/minimapicons.dll
 ```
 
-## 5. Hide source archives
+## 6. Hide source archives
 
 Codeberg attaches empty source tar/zip by default. Hide them via API:
 
@@ -200,6 +224,7 @@ print(r[0]['id']) if r else print('not found')
 
 ## Checklist
 
+- [ ] Module versions bumped in `build.zig` for changed modules
 - [ ] Check `RELEASE_NOTES.md` for unreleased changes — move into release notes
 - [ ] Built with `ReleaseSmall` (both default and `all-variants`)
 - [ ] Remote README updated — no unreleased module sections or names