fix(apidocs): 🐛 correct blockbuster main branch + allow 0.x

The blockbuster repo uses 'main' (not 'master') and is still
pre-1.0, so the '^0\..*$' exclude filter dropped every release and
left the version list empty, causing 'grep' to exit non-zero under
'set -o pipefail' and fail the docs build.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: lguerard

settings/apidocs/blockbuster.inc.sh

@@ -19,13 +19,14 @@ REPO_URI="https://github.com/imcf/${REPO_NAME}.git"
 # INCLUDE_TAGS="^(${REPO_NAME}-|v)[0-9]+"
 
 # the name of the main branch, commonly "main" or (old) "master"
-MAIN_BRANCH="master"
+MAIN_BRANCH="main"
 
 # location of the package source, by default "src/" will be used if emtpy:
 # PKG_SRC="src/main/resources"  # for mavenized packages
 
 # a 'grep -E' pattern to filter VERSIONS to be EXCLUDED from docs generation:
-EXCLUDE_VERSIONS='^0\..*$'
+# (blockbuster is still pre-1.0, so do NOT exclude 0.x releases)
+# EXCLUDE_VERSIONS='^0\..*$'
 
 # check for 'pdoc: skip' pragmas in the code and disable those lines before
 # actually calling pdoc for the versions specified here: