feat(training_participation_report): communicate parameters to frontend on join

...signaling-module-training-participation-report/src/lib.rs

...g-module-training-participation-report/src/storage/mod.rs

...module-training-participation-report/src/storage/redis.rs

...port/src/storage/training_participation_report_storage.rs

...ining-participation-report/src/storage/volatile/memory.rs

...ning-participation-report/src/storage/volatile/storage.rs