Add completed task-11: Fix blog post rendering issues

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backlog/tasks/task-11 - Fix-blog-post-rendering-issues.md

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+---
+id: task-11
+title: Fix blog post rendering issues
+status: Done
+assignee: []
+created_date: '2026-02-05 15:29'
+updated_date: '2026-02-05 15:30'
+labels: []
+dependencies: []
+priority: high
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+Fix various rendering issues in blog posts imported from Squarespace:
+- WordPress [caption] shortcodes appearing as raw text
+- HTML entities like &mdash; not being decoded
+- Duplicate featured images appearing in blog post content
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+<!-- AC:BEGIN -->
+- [x] #1 [caption] shortcodes converted to proper HTML figure/figcaption elements
+- [x] #2 HTML entities decoded in excerpts (em-dash, smart quotes, etc.)
+- [x] #3 Featured images not duplicated in blog post content
+- [x] #4 CSS styling added for figure captions
+<!-- AC:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+Completed 2026-02-05. Changes made to frontend/scripts/parse-squarespace-xml.js:
+- Added convertCaptionShortcodes() to transform [caption]...[/caption] into figure/figcaption HTML
+- Added decodeExcerptEntities() for HTML entity decoding in excerpts
+- Added removeLeadingImage() to prevent featured image duplication
+- Added CSS styling for .wp-caption figures in globals.css
+
+Commits:
+- 204679b Fix blog excerpt rendering: remove shortcodes and decode HTML entities
+- 64da557 Convert WordPress [caption] shortcodes to proper HTML figures
+- da39ee7 Remove duplicate featured images from blog content
+<!-- SECTION:NOTES:END -->