Add themed board game library at /mygames/

Embed the bggpipe "Game Shelves" export (static/games/) into a themed
Hugo page. A small loader (embed.js) fetches each export page, lifts out
its <main>, rewrites relative URLs, and rewires game links to ?g=<slug>
so the blog chrome stays on every page; embed.css scopes the export's
component styling to the embed. The export itself is untouched and stays
re-exportable. Adds the menu entry and excludes badges/ from deploy.

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

config.toml

@@ -102,6 +102,11 @@ theme = "m10c"
     name = "Weeknotes"
     url = "/weeknotes/"
     weight = 4
+  [[menu.tertiary]]
+    identifier = "mygames"
+    name = "My Boardgames"
+    url = "/mygames/"
+    weight = 1
   [[menu.tertiary]]
     identifier = "mytweets"
     name = "Local Tweet Archive"
@@ -111,4 +116,9 @@ theme = "m10c"
     identifier = "randomrecipeproject"
     name = "Random Recipe Project (cooking videos)"
     url = "https://www.youtube.com/@RandomRecipeProject"
-    weight = 1
+    weight = 1
+  [[menu.featured]]
+    identifier = "bggpipe"
+    name = "bggpipe: My automated boardgame organizer"
+    url = "https://git.kestrelsnest.social/eric/bggpipe"
+    weight = 2