Update logo and site title links in header

- Logo now links to the organization root (https://beancount.github.io).
- 'Beancount Documentation' title now links to the documentation root.
- Implemented via a new JavaScript file (docs/javascripts/header.js).
- Added script to zensical.yml extra_javascript configuration.

Author: blais

docs/javascripts/header.js

@@ -0,0 +1,75 @@
+(function() {
+    console.log("Beancount header script loaded");
+    
+    function applyLinks() {
+        const logoLinks = document.querySelectorAll('[data-md-component="logo"]');
+        if (logoLinks.length === 0) return false;
+
+        let docRoot = '';
+        // Find the original documentation root link.
+        // It's usually "" (on index) or contains ".." or is "/docs/"
+        for (let logo of logoLinks) {
+            const href = logo.getAttribute('href');
+            if (href !== null && href !== 'https://beancount.github.io') {
+                 docRoot = logo.href; // Get resolved absolute URL
+                 break;
+            }
+        }
+        
+        // If we can't find it clearly, fallback to a sensible default.
+        if (!docRoot) docRoot = window.location.origin + '/docs/';
+
+        console.log("Determined docRoot:", docRoot);
+
+        // Update all logo links to point to organization root.
+        logoLinks.forEach(function(logo) {
+            logo.href = 'https://beancount.github.io';
+        });
+
+        // Update the site title in the header.
+        const titleTopics = document.querySelectorAll('.md-header__topic');
+        if (titleTopics.length > 0) {
+            const titleSpan = titleTopics[0].querySelector('.md-ellipsis');
+            if (titleSpan && !titleSpan.querySelector('a')) {
+                const titleText = titleSpan.textContent.trim();
+                if (titleText === 'Beancount Documentation') {
+                    titleSpan.innerHTML = `<a href="${docRoot}" style="color: inherit; text-decoration: none;">${titleText}</a>`;
+                    console.log("Updated title link to:", docRoot);
+                }
+            }
+        }
+        
+        // Also update the sidebar title if it exists.
+        const navTitle = document.querySelector('.md-nav__title');
+        if (navTitle) {
+            for (let node of navTitle.childNodes) {
+                if (node.nodeType === Node.TEXT_NODE && node.textContent.trim() === 'Beancount Documentation') {
+                    const span = document.createElement('span');
+                    span.innerHTML = `<a href="${docRoot}" style="color: inherit; text-decoration: none;">${node.textContent}</a>`;
+                    navTitle.replaceChild(span, node);
+                    console.log("Updated sidebar title link");
+                }
+            }
+        }
+
+        return true;
+    }
+
+    // Try multiple times to handle potential dynamic loading or race conditions.
+    let attempts = 0;
+    const interval = setInterval(function() {
+        attempts++;
+        const success = applyLinks();
+        if (success || attempts > 20) {
+            clearInterval(interval);
+        }
+    }, 250);
+
+    // Also hook into Material for MkDocs navigation if available.
+    if (typeof location$ !== 'undefined') {
+        location$.subscribe(function() {
+            setTimeout(applyLinks, 100);
+            setTimeout(applyLinks, 500);
+        });
+    }
+})();

zensical.yml

@@ -111,6 +111,7 @@ extra_css:
   - css/custom.css
 extra_javascript:
   - javascripts/shortcuts.js
+  - javascripts/header.js
 
 extra:
   version: