fix(skills): align skill names with folder names using hyphens

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/skills/mt-add-post/SKILL.md

@@ -1,5 +1,5 @@
 ---
-name: mt:add-post
+name: mt-add-post
 description: 'URL processing workflow for Hugo blog newsletter posts. Use when user wants to add URLs to their newsletter, process blog content, extract content from links, or update daily newsletter posts. Automatically processes URLs, extracts content, generates Vietnamese summaries, and creates/updates daily newsletter posts with proper numbering and formatting.'
 ---
 

.claude/skills/mt-add-tags/SKILL.md

@@ -1,6 +1,6 @@
 ---
-name: mt:add-tags
-description: "Add or update tags in Hugo blog post frontmatter by analyzing post content. Use this skill when the user calls mt:add-tags, wants to add tags to a post, asks about tagging a post, or is about to commit — proactively check if the current post has only generic/minimal tags (e.g., only ['AI-Assisted'] or empty) and offer to generate proper tags. Generate a concise list of 6-7 relevant tags that reflect the actual content. Always ask user to confirm before writing."
+name: mt-add-tags
+description: "Add or update tags in Hugo blog post frontmatter by analyzing post content. Use this skill when the user calls mt-add-tags, wants to add tags to a post, asks about tagging a post, or is about to commit — proactively check if the current post has only generic/minimal tags (e.g., only ['AI-Assisted'] or empty) and offer to generate proper tags. Generate a concise list of 6-7 relevant tags that reflect the actual content. Always ask user to confirm before writing."
 ---
 
 ## Overview