* Fix retrieving cross-signing signatures in `/user/devices/{userId}`
We need to know the target device IDs in order to get the signatures and we weren't populating those.
* Fix up signature retrieval
* Fix SQLite
* Always include the target's own signatures as well as the requesting user
* Move receipt sending to own JetStream producer
* Move SendToDevice to producer
* Remove most parts of the EDU server
* Fix SendToDevice & copyrights
* Move structs, cleanup EDU Server traces
* Use HeadersOnly subscription
* Missing file
* Fix linter issues
* Move consumers to own files
* Rename durable consumer; Consumer cleanup
* Docs/config cleanup
* Remove unneeded logging
* Add MasterKey & SelfSigningKey to update
Avoid panic if signatures are not present
* Add passing test
* Revert "Add MasterKey & SelfSigningKey to update"
This reverts commit 2c81b34884be8b5b875a33420c0f985b578d3fb8.
* Send MasterKey & SelfSigningKey with update
* Debugging
* Remove delete() so we also query signingkeys
* Handle other signatures
* Decorate key ID properly
* Match by key IDs
* Tweaks
* Fixes
* Fix /user/keys/query bug, review comments, update sytest-whitelist
* Various wtweaks
* Fix wiring for keyserver in API mode
* Additional fixes
* Enable unstable feature again
* Try to verify when a device signs a key
* Try to verify when a key signs a device
* It's the self-signing key, not the master key
* Fix error
* Try to verify master key uploads
* Actually we can't guarantee we can do that so nevermind
* Add signatures into /devices/list request
* Fix nil pointer
* Reprioritise map creation
* Don't skip devices that don't have signatures
* Add some debug logging
* Fix logic error in QuerySignatures
* Fix bugs
* Expose master and self-signing keys on /devices/list hopefully
* maps are tedious
* Expose signatures via /keys/query
* Upload signatures when uploading keys
* Fixes
* Disable the feature again
* Cross-signing groundwork
* Update to matrix-org/gomatrixserverlib#274
* Fix gobind builds, which stops unit tests in CI from yelling
* Some changes from review comments
* Fix build by passing in UIA
* Update to matrix-org/gomatrixserverlib@bec8d22
* Process master/self-signing keys from devices call
* nolint
* Enum-ify the key type in the database
* Process self-signing key too
* Fix sanity check in device list updater
* Fix check
* Fix sytest, hopefully
* Fix build