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>

04-streaming/obs/obs-studio-setup-encoding.md

@@ -153,5 +153,5 @@ Set `live-caching=0` to minimize capture latency. This is useful when OBS's nati
 
 ## See Also
 
-- [[linux-file-permissions]]
-- [[bash-scripting-patterns]]
+- [linux-file-permissions](../../01-linux/files-permissions/linux-file-permissions.md)
+- [bash-scripting-patterns](../../01-linux/shell-scripting/bash-scripting-patterns.md)

04-streaming/plex/plex-4k-codec-compatibility.md

@@ -1,3 +1,12 @@
+---
+title: "Plex 4K Codec Compatibility (Apple TV)"
+domain: streaming
+category: plex
+tags: [plex, 4k, hevc, apple-tv, transcoding, codec]
+status: published
+created: 2026-04-02
+updated: 2026-04-02
+---
 # Plex 4K Codec Compatibility (Apple TV)
 
 4K content on YouTube is delivered in AV1 or VP9 — neither of which the Plex app on Apple TV can direct play. This forces Plex to transcode, and most home server CPUs can't transcode 4K in real time. The fix is converting to HEVC before Plex ever sees the file.