Move LuaJIT compat shims into backends/imgui_impl_love.lua (COMPAT section); remove compat/

tools/bundle.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # Bundles the root *.lua (library + imgui_demo.lua), backends/ and fonts/ into ONE ModuleScript: build/ImGui.luau
 # --no-demo: library only (imgui_demo.lua left out, like not compiling imgui_demo.cpp)
-# --target love: build/imgui_love.lua for LÖVE/LuaJIT instead (LÖVE backend, compat/luajit.lua shims, @native stripped).
+# --target love: build/imgui_love.lua for LÖVE/LuaJIT instead (LÖVE backend, shims from the LÖVE backend's COMPAT section, @native stripped).
 #                The default (roblox) build is unaffected by it.
 # Why: ModuleScripts don't share globals, and the setfenv() alternative turns off Luau's fast paths / native codegen.
 # Each source file becomes a function in __FILES; IM_INCLUDE(name) runs it once and caches the result.
@@ -34,7 +34,7 @@ for src in FILES.values():
 
 out = ["--!optimize 2", "-- GENERATED by tools/bundle.py from *.lua, backends/, fonts/ - do not edit", ""]
 if LOVE:
-    out = ["-- GENERATED by tools/bundle.py --target love - do not edit", open(os.path.join(ROOT, "compat", "luajit.lua")).read(), ""]
+    out = ["-- GENERATED by tools/bundle.py --target love - do not edit", re.search(r"--@compat-begin\n(.*?)--@compat-end", open(os.path.join(ROOT, "backends", "imgui_impl_love.lua")).read(), re.S).group(1), ""]
 out += [
        "local __FILES, __LOADED = {}, {}",
        "function IM_INCLUDE(name)",