Extracts announcement bar configuration

Moves the announcement bar configuration to a separate file.

This change allows for easier management of the announcement bar content and enables conditional inclusion based on the build environment. The `dismissable` option is also set to `false` for production builds.

quarto/config/_quarto-html.yml

@@ -38,21 +38,6 @@ website:
   back-to-top-navigation: true
   bread-crumbs: true
 
-  # Announcement bar configuration
-  announcement:
-    icon: megaphone
-    dismissable: true
-    type: primary
-    position: below-navbar
-    content: |
-      🎉 **Just Announced:** *Machine Learning Systems* will be published by **MIT Press**. [See the news →](https://www.linkedin.com/posts/vijay-janapa-reddi-63a6a173_tinyml-tikz-ai-activity-7338324711145136128-6WU-?utm_source=share&utm_medium=member_desktop&rcm=ACoAAA-V7E4BcYtyZgLSeGhXC2t9jRSlmazfp-I)<br>
-      
-      🚀 **Sneak Peek:** [Tiny🔥Torch](https://mlsysbook.github.io/TinyTorch/intro.html). Build your own machine learning framework from scratch!<br>
-      
-      🧠 **Self-checks:** Added lightweight [quizzes](/contents/core/introduction/introduction.qmd#quiz-question-sec-introduction-ai-ml-basics-041a) to each chapter for self-assessment.<br>
-      
-      📦 **New Hardware:** [Seeed TinyML Kit](/contents/labs/kits.qmd). Latest hands-on learning platform.
-
   google-analytics:
     tracking-id: "G-M21L0CBCVN"
     anonymize-ip: true
@@ -585,4 +570,9 @@ mlsysbook-ext/custom-numbered-blocks:
       group: chapter-connection
     callout-code:
       label: "Code"
-      group: code-listing 
+      group: code-listing 
+
+# Announcement bar configuration, only for production builds (not preview)
+metadata-files:
+  - config/announcement.yml
+

quarto/config/announcement.yml

@@ -0,0 +1,21 @@
+# =============================================================================
+# ANNOUNCEMENT BAR CONFIGURATION - PRODUCTION
+# =============================================================================
+# This file contains the announcement bar configuration for the production site.
+# It's included via metadata-files in _quarto-html.yml
+# =============================================================================
+
+website:
+  announcement:
+    icon: megaphone
+    dismissable: false
+    type: primary
+    position: below-navbar
+    content: |
+      🎉 **Just Announced:** *Machine Learning Systems* will be published by **MIT Press**. [See the news →](https://www.linkedin.com/posts/vijay-janapa-reddi-63a6a173_tinyml-tikz-ai-activity-7338324711145136128-6WU-?utm_source=share&utm_medium=member_desktop&rcm=ACoAAA-V7E4BcYtyZgLSeGhXC2t9jRSlmazfp-I)<br>
+      
+      🚀 **Sneak Peek:** [Tiny🔥Torch](https://mlsysbook.github.io/TinyTorch/intro.html). Build your own machine learning framework from scratch!<br>
+      
+      🧠 **Self-checks:** Added lightweight [quizzes](/contents/core/introduction/introduction.qmd#quiz-question-sec-introduction-ai-ml-basics-041a) to each chapter for self-assessment.<br>
+      
+      📦 **New Hardware:** [Seeed TinyML Kit](/contents/labs/kits.qmd). Latest hands-on learning platform.