go tendermint: status peers and validator only after started

[pro-wh]

Otherwise we won't have t.node available.

[codecov]

Codecov Report

Merging #3534 (aebecfc) into master (52a2199) will increase coverage by 0.15%.
The diff coverage is 85.71%.

@@            Coverage Diff             @@
##           master    #3534      +/-   ##
==========================================
+ Coverage   66.46%   66.62%   +0.15%     
==========================================
  Files         373      373              
  Lines       33998    33998              
==========================================
+ Hits        22598    22650      +52     
+ Misses       8139     8083      -56     
- Partials     3261     3265       +4     

Impacted Files	Coverage Δ
go/consensus/tendermint/full/full.go	63.51% <85.71%> (+0.26%)	⬆️
.../consensus/tendermint/apps/epochtime_mock/state.go	75.00% <0.00%> (-5.00%)	⬇️
go/storage/mkvs/tree.go	86.95% <0.00%> (-4.35%)	⬇️
go/runtime/client/watcher.go	64.44% <0.00%> (-3.71%)	⬇️
...n/crypto/signature/signers/memory/memory_signer.go	72.41% <0.00%> (-3.45%)	⬇️
go/storage/api/root_cache.go	78.33% <0.00%> (-3.34%)	⬇️
go/storage/mkvs/insert.go	87.67% <0.00%> (-2.74%)	⬇️
go/storage/database/database.go	68.23% <0.00%> (-2.36%)	⬇️
go/storage/mkvs/lookup.go	74.19% <0.00%> (-2.16%)	⬇️
go/worker/storage/committee/node.go	75.00% <0.00%> (-2.01%)	⬇️
... and 22 more

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