Fix: burn view calculations in signer

[aaronb-stacks]

This fixes some of the burn view calculations used by signers to evaluate proposals

• add /v3/tenures/tip_metadata for obtaining burn_view metadata
• correct the signer burn_view calculations, with e2e tests

[codecov]

Codecov Report

❌ Patch coverage is 55.43131% with 279 lines in your changes missing coverage. Please review.
✅ Project coverage is 74.18%. Comparing base (267c7ef) to head (911924b).
⚠️ Report is 3 commits behind head on release/3.3.0.0.4.

Files with missing lines	Patch %	Lines
stacks-node/src/tests/signer/v0.rs	0.00%	136 Missing ⚠️
stackslib/src/chainstate/tests/runtime_tests.rs	0.00%	64 Missing ⚠️
stackslib/src/net/api/get_tenure_tip_meta.rs	67.81%	28 Missing ⚠️
stacks-signer/src/chainstate/v2.rs	22.22%	14 Missing ⚠️
stacks-signer/src/chainstate/tests/v2.rs	89.01%	10 Missing ⚠️
stacks-signer/src/chainstate/v1.rs	61.53%	10 Missing ⚠️
stacks-signer/src/client/mod.rs	83.33%	6 Missing ⚠️
stacks-signer/src/tests/signer_state.rs	45.45%	6 Missing ⚠️
stackslib/src/net/api/gettenuretip.rs	40.00%	3 Missing ⚠️
clarity/src/vm/functions/post_conditions.rs	66.66%	2 Missing ⚠️

❌ Your project status has failed because the head coverage (74.18%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@                  Coverage Diff                  @@
##           release/3.3.0.0.4    #6782      +/-   ##
=====================================================
- Coverage              78.40%   74.18%   -4.23%     
=====================================================
  Files                    585      587       +2     
  Lines                 361384   361777     +393     
=====================================================
- Hits                  283360   268373   -14987     
- Misses                 78024    93404   +15380     

Files with missing lines	Coverage Δ
clarity-types/src/errors/mod.rs	75.55% <ø> (ø)
clarity-types/src/tests/types/signatures.rs	94.58% <100.00%> (-4.54%)	⬇️
clarity-types/src/types/signatures.rs	92.21% <100.00%> (-0.12%)	⬇️
stacks-node/src/tests/signer/mod.rs	71.32% <100.00%> (+1.90%)	⬆️
stacks-signer/src/chainstate/mod.rs	89.66% <100.00%> (+1.47%)	⬆️
stacks-signer/src/chainstate/tests/mod.rs	100.00% <100.00%> (ø)
stacks-signer/src/chainstate/tests/v1.rs	97.31% <100.00%> (-2.69%)	⬇️
stacks-signer/src/client/stacks_client.rs	84.33% <100.00%> (-4.47%)	⬇️
stacks-signer/src/v0/signer_state.rs	75.57% <100.00%> (+4.45%)	⬆️
stackslib/src/net/api/mod.rs	93.33% <100.00%> (+0.18%)	⬆️
... and 11 more

... and 248 files with indirect coverage changes

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[brice-stacks]

LGTM!

[jacinta-stacks]

Just a nit about copyright.