docs(links): five See Also links had no text at all

A generated See Also pass left `- ](index.md)` style links on the gitea pages, tools/cachyos.md,
and tools/applications.md. Rendered, an empty-text link is a bullet with nothing clickable in it,
so it reads as a formatting quirk and never as the broken reference it is. All five now name the
page they point at and use the absolute bundle path the spec recommends; the grep that finds them
is recorded in the log so the sweep is repeatable.

Refs #64

omp-docs/tools/gitea/data-persistence.md

@@ -63,6 +63,6 @@ Set `PGPASSWORD` from `/home/dank/Containers/gitea/env` (mode 0600, `GITEA_DB_PA
 
 ## See Also
 
-- ](index.md) — index with management commands
+- [Gitea on dankclaw](/tools/gitea/index.md) — what lives where
 - [management](/tools/gitea/management.md) — operations and boot persistence
 - [architecture](/tools/gitea/architecture.md) — network and ports