* agent: support client notices
* improve
* fix, test
* rename
* cleanup
* send and process notices in more cases
* dont delete
* dont remove notice on other permanent errors
* dont remove notice if there is no notice ID in queue
* add server to error
* allow deleting
* only use notice if key hash matches
* time buckets
* split max time metric
* histogram
* histogram for confirmed delivery times
* gaugehistogram
* fix created, _ in gauge_histogram
* remove comments
* fix metrics
* rfc: client certificates for high volume clients (opertors' chat relays, notification servers, service bots)
* client certificates types (WIP)
* parameterize Transport
* protocol/schema/api changes
* agent API
* rename command
* agent subscriptions return local ClientServiceId to chat
* verify transmissions
* fix receiving client certificates, refactor
* ntf server: remove shared queue for all notification subscriptions (#1543)
* ntf server: remove shared queue for all notification subscriptions
* wait for subscriber with timeout
* safer
* refactor
* log
* remove unused
* WIP service subscriptions and associations, refactor
* process service subscriptions
* rename
* simplify switching subscriptions
* SMP service handshake with additional server handshake response
* notification delivery and STM persistence for services
* smp server: database storage, store log, fix encoding for STORE error, replace String with Text in locks and error
* stats
* more stats
* rename SMP commands
* service subscriptions in ntf server agent (tests fail)
* fix
* refactor
* exports
* subscribe ntf server as service for associated queues
* test ntf service connection, fix SOKS response, fix service associations not removed in STM storage
* INI option to support services
* ntf server: downgrade subscriptions when service is no longer supported, track counts of subscribed queues
* smp protocol: include service certificate fingerprint in the string signed over with entity key (TODO two tests fail)
* fix test
* ntf server prometheus stats, use Int64 in SOKS/ENDS responses (to avoid conversions), additional error status for ntf subscription
* update RFC
* refactor useServiceAuth to avoid ad hoc decisions about which commands use service signatures, and to prohibit service signatures on other commands
* remove duplicate service signature syntax check from checkCredentials, it is checked in verifyTransmission
* service errors, todos
* fix checkCredentials in ntf server, service errors
* refactor service auth
* refactor
* service agent: store returned queue count instead of expected
* refactor serverThread
* refactor serviceSig
* rename
* refactor, rename, test repeat NSUB service association
* respond with error to SUBS
* smp server: export/import service records between database and store log
* comment
* comments
* ghc 8.10.7
* servers: blocking records for content moderation
* update
* encode BLOCKED as AUTH in old versions
* update
* unblock queue command
* test, status command
* .401
* stats for undelivered notifications
* logs, stats
* control port show ntf client IDs
* check that Ntf client is still current and that queue is not full, drop notifications otherwise
* prevent losing notifications when client is not current or queue full
* add log when no notifications, remove some logs
* reduce STM transaction
* revert version change
* smp-server: check queue balance in stats vs store
* smp-server: add msgExpired stats
* add msgExpired stats
* split expire/stats transactions
* count and pass msgExpired explicitly
* save/load qCount and use it for checking store
Evgeny