fix: refactor: extract install_cron() and Woodpecker OAuth/token setup from bin/disinto into lib/ci-setup.sh (#303)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/ci-setup.sh

@@ -12,7 +12,6 @@
 #   FORGE_URL    - Forge instance URL (e.g. http://localhost:3000)
 #   FORGE_TOKEN  - Forge API token
 #   FACTORY_ROOT - Root of the disinto factory
-#   PROJECT_NAME - Name of the project
 #
 # Usage:
 #   source "${FACTORY_ROOT}/lib/ci-setup.sh"
@@ -25,7 +24,6 @@ _load_ci_context() {
   [ -z "${FORGE_URL:-}" ]    && missing+=("FORGE_URL")
   [ -z "${FORGE_TOKEN:-}" ]  && missing+=("FORGE_TOKEN")
   [ -z "${FACTORY_ROOT:-}" ] && missing+=("FACTORY_ROOT")
-  [ -z "${PROJECT_NAME:-}" ] && missing+=("PROJECT_NAME")
   if [ "${#missing[@]}" -gt 0 ]; then
     echo "Error: ci-setup.sh requires these globals to be set: ${missing[*]}" >&2
     exit 1