Add GitLab checker; gate storyteller update

Introduce GitLab release helpers and use them to conditionally update Storyteller.

- misc/tools.func: add get_latest_gitlab_release and check_for_gl_release functions (GitLab API calls, token support, pinning, error handling, requires jq).
- ct/storyteller.sh: wrap update sequence with check_for_gl_release so rebuild/deploy only runs when a new GitLab release is detected; update author metadata.
- install/storyteller-install.sh: remove python3 from apt dependencies and drop NODE_OPTIONS export; minor whitespace cleanup.

These changes prevent unnecessary rebuilds by detecting upstream GitLab releases and improve robustness of release detection and error reporting.

install/storyteller-install.sh

@@ -20,7 +20,6 @@ $STD apt install -y \
   pkg-config \
   libsqlite3-dev \
   sqlite3 \
-  python3 \
   python3-setuptools \
   ffmpeg
 msg_ok "Installed Dependencies"
@@ -29,12 +28,10 @@ NODE_VERSION="22" NODE_MODULE="yarn" setup_nodejs
 
 fetch_and_deploy_gh_release "readium" "readium/cli" "prebuild" "latest" "/opt/readium" "readium_linux_x86_64.tar.gz"
 ln -sf /opt/readium/readium /usr/local/bin/readium
-
 fetch_and_deploy_gl_release "storyteller" "storyteller-platform/storyteller" "tarball" "latest" "/opt/storyteller"
 
 msg_info "Setting up Storyteller"
 cd /opt/storyteller
-export NODE_OPTIONS="--max-old-space-size=4096"
 $STD yarn install --network-timeout 600000
 $STD gcc -g -fPIC -rdynamic -shared web/sqlite/uuid.c -o web/sqlite/uuid.c.so
 STORYTELLER_SECRET_KEY=$(openssl rand -base64 32)