examples: replace snake with mandelbrot (f64 + libc dyn-link demo)

examples/mandelbrot/Makefile

@@ -0,0 +1,15 @@
+# examples/mandelbrot — built with the ww toolchain only (w6c → w6a → w6l).
+#
+# `ww build` does the whole pipeline. -l c routes putchar through w6l's
+# dynamic linker (PT_INTERP + PT_DYNAMIC + PLT/GOT), so the resulting
+# binary maps libc.so.6 at runtime via the system loader. No cc.
+
+WW := $(shell cd ../..; pwd)/out/bin/ww
+
+mandelbrot: mandelbrot.ww
+	$(WW) build mandelbrot.ww -L /usr/lib -l c
+
+clean:
+	rm -f mandelbrot mandelbrot.o mandelbrot.s mandelbrot.combined.ww
+
+.PHONY: clean