refactor(cron): rebrand Cron Recipes -> Automation Blueprints

Product rename across every surface: module/file names (blueprint_catalog,
tools/blueprints, blueprint_cmd), slash command /cron-recipe -> /blueprint
(alias /bp), dashboard API /api/cron/blueprints, desktop deep-link
hermes://blueprint/<key>, docs catalog page + extract script, and the
skill frontmatter block metadata.hermes.blueprint. No behavior change.

hermes_cli/suggestions_cmd.py

@@ -25,7 +25,7 @@ def _fmt_pending(pending: list) -> str:
         return (
             "No suggested automations right now.\n"
             "Try `/suggestions catalog` to see the curated starter set, or "
-            "install a recipe skill to get one."
+            "install a blueprint skill to get one."
         )
     lines = ["Suggested automations — `/suggestions accept N` or `dismiss N`:\n"]
     for i, s in enumerate(pending, 1):