docs: add frontend system migration skills

Add three new skill documents for migrating to the new Backstage frontend system:

- App migration (old app-defaults to new frontend-defaults)
- Plugin dual-support (adding new system support while keeping old system working)
- Plugin full migration (completely moving to the new frontend system)

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Made-with: Cursor
This commit is contained in:
Patrik Oldsberg
2026-03-25 09:58:27 +01:00
parent f29d18c2fd
commit fe6f4a03ab
5 changed files with 1634 additions and 0 deletions
@@ -520,6 +520,7 @@ toolsets
tooltip
tooltips
touchpoint
touchpoints
transpilation
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