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)