wiki: fix article count to 73, update frontmatter timestamps

Corrected inflated article count (was 76, actual is 73).
Updated domain breakdown and frontmatter timestamps from Obsidian.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

05-troubleshooting/index.md

@@ -1,3 +1,7 @@
+---
+created: 2026-03-15T06:37
+updated: 2026-04-07T10:48
+---
 # 🔧 General Troubleshooting
 
 Practical fixes for common Linux, networking, and application problems.

05-troubleshooting/majwiki-setup-and-pipeline.md

@@ -1,11 +1,16 @@
 ---
-title: "MajorWiki Setup & Publishing Pipeline"
+title: MajorWiki Setup & Publishing Pipeline
 domain: troubleshooting
 category: general
-tags: [mkdocs, obsidian, gitea, docker, self-hosting]
+tags:
+  - mkdocs
+  - obsidian
+  - gitea
+  - docker
+  - self-hosting
 status: published
 created: 2026-03-11
-updated: 2026-04-02
+updated: 2026-04-07T10:48
 ---
 
 # MajorWiki Setup & Publishing Pipeline