feat(debug-ui): extend epoch info api #10169

Job	Run time
Backward Compatibility	49s
Protobuf Backward Compatibility	14s
Cargo Nextest (Linux)	50s
Cargo Nextest (Linux Nightly)	50s
Cargo Audit	20s
Cargo Deny	32s
Cargo Clippy	51s
Cargo Fmt	23s
Non-default Configuration Builds	48s
Themis	38s
Unused Dependencies	33s
Rust Doctests	2s
Protocol Schema	48s
Cargo check publishable packages separately (Linux, linux, ubuntu-latest)	48s
Database Migration	1s
Cargo check publishable packages separately (Windows, win, windows-latest)	41s
Genesis Changes	1s
Sanity Checks	38s
Style	34s
Upgradability	1s
spellcheck	21s
Generate Coverage Artifact	1s
Upload Coverage	1s
	10m 45s

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