Peter Steinberger
2f17d11e90
fix(backup): preserve configured agent state roots (#129773)
* fix(backup): honor configured agent state roots
Inventory configured agent directories as durable backup owners regardless of layout. Reuse the owner inventory for archive planning, SQLite snapshotting, verification, restore safety, and Git/SQLite backup selection.
Add manifest-first plugin backup resource declarations so regenerable runtime roots stay plugin-owned without provider IDs in core.
Closes #129730
* fix(backup): preserve canonical ownership checks