feat(blog): publish From a Spreadsheet to a Running ERP in Ten Thursday Sessions

New post blog/posts/from-a-spreadsheet-to-a-running-erp.html (area news, 2026-11-02),
body pasted verbatim from the inbox source (sha256 59568fc8…). Chrome copied from the
newest post (oca-paraguay-internationalization-hackathon.html), inline style trimmed to
the rules the page uses. Card image screencast.png wired in three additive places
(post-image after the meta line, og:image, blog/index.json image key) plus BlogPosting
JSON-LD. blog/index.json 17 -> 18, sitemap.xml 42 -> 43 <loc>, llms.txt 17 -> 18 lines,
all text splices (16 insertions, 0 deletions).

blog/index.json

@@ -1,5 +1,14 @@
 {
   "posts": [
+    {
+      "id": "from-a-spreadsheet-to-a-running-erp",
+      "date": "2026-11-02",
+      "area": "news",
+      "headline": "From a Spreadsheet to a Running ERP in Ten Thursday Sessions",
+      "teaser": "Most small businesses do not run on an ERP. They run on a spreadsheet, a messaging group, and one person's memory. It wo",
+      "link": "blog/posts/from-a-spreadsheet-to-a-running-erp.html",
+      "image": "https://image.office.odoo4projects.com/img/screencast.png"
+    },
     {
       "id": "oca-paraguay-internationalization-hackathon",
       "date": "2026-10-29",