wiki: audit fixes — broken links, wikilinks, frontmatter, stale content (66 files)

- Fixed 4 broken markdown links (bad relative paths in See Also sections)
- Corrected n8n port binding to 127.0.0.1:5678 (matches actual deployment)
- Updated SnapRAID article with actual majorhome paths (/majorRAID, disk1-3)
- Converted 67 Obsidian wikilinks to relative markdown links or plain text
- Added YAML frontmatter to 35 articles missing it entirely
- Completed frontmatter on 8 articles with missing fields

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

05-troubleshooting/storage/mdadm-usb-hub-disconnect-recovery.md

@@ -1,3 +1,12 @@
+---
+title: "mdadm RAID Recovery After USB Hub Disconnect"
+domain: troubleshooting
+category: storage
+tags: [mdadm, raid, usb, storage, recovery]
+status: published
+created: 2026-04-02
+updated: 2026-04-02
+---
 # mdadm RAID Recovery After USB Hub Disconnect
 
 A software RAID array managed by mdadm can appear to catastrophically fail when the drives are connected via USB rather than SATA. The array is fine — the hub dropped out. Here's how to diagnose and recover.