Pasture: WriteFreely 0.17.2

WriteFreely joins the pasture, built from its release with openssl beside it (it makes each blog's keys with the
command); scenarios/writefreely.sh has alice follow a blog and receive its post as a titled Article, its edit and its
deletion, then unfollow: 13 checks, with no change to PrivaPub.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

tools/pasture/images/writefreely/Containerfile

@@ -0,0 +1,9 @@
+# WriteFreely 0.17.2 from its release tarball: the project's image stopped at 0.9. It makes each blog's keys with the
+# openssl command
+FROM docker.io/library/alpine:3.22
+RUN apk -U --no-progress --no-cache add ca-certificates curl libc6-compat openssl \
+	&& curl -fsSL https://github.com/writefreely/writefreely/releases/download/v0.17.2/writefreely_0.17.2_linux_amd64.tar.gz \
+		| tar -xz -C /opt \
+	&& apk del curl
+WORKDIR /opt/writefreely
+EXPOSE 8080