refactor(pvm): group Tezos-related fields into new struct

[victor-dumitrescu]

Closes RV-909.

What

This PR changes the PVM state, grouping all the Tezos-specific state components under a new Tezos struct.

Why

Simplifies the signature of functions operating on Tezos-related state components. Allows certain outbox functions to be implemented directly on Tezos only instead of the whole PVM state.

How

The Tezos struct is introduced, as well as implementations for all the traits needed for it to be used as part of the PVM state. These implementations and the changes across the PVM codebase are mostly mechanical.

Manually Testing

make all

Regressions

Encoding and proof format have changed, requiring refreshing all regressions.

This change causes a small but consistent performance hit, which is acceptable for now.

Tasks for the Author

• Link all Linear issues related to this MR using magic words (e.g. part of, relates to, closes).
• Eliminate dead code and other spurious artefacts introduced in your changes.
• Document new public functions, methods and types.
• Make sure the documentation for updated functions, methods, and types is correct.
• Add tests for bugs that have been fixed.
• Explain changes to regression test captures when applicable.
• Write commit messages in agreement with our guidelines.
• Self-review your changes to ensure they are high-quality.
• Complete all of the above before assigning this MR to reviewers.

[github-actions]

Benchmark results for revision 523eab3:

Metric	Duration	TPS
Mean	1.527055905s	26.194
Worst	1.538842501s	25.994
Best	1.521329101s	26.293
Standard Deviation	±4.294283ms	±0.074

Full results

Run	Transfers	Duration	TPS
1	40	1.538842501s	25.994
2	40	1.528061499s	26.177
3	40	1.528727777s	26.166
4	40	1.529487308s	26.153
5	40	1.528331706s	26.172
6	40	1.529387309s	26.154
7	40	1.522124483s	26.279
8	40	1.529027877s	26.160
9	40	1.531927225s	26.111
10	40	1.523944287s	26.248
11	40	1.524384468s	26.240
12	40	1.523507577s	26.255
13	40	1.521599218s	26.288
14	40	1.525057191s	26.229
15	40	1.529163475s	26.158
16	40	1.521545585s	26.289
17	40	1.521329101s	26.293
18	40	1.525701434s	26.217
19	40	1.526588596s	26.202
20	40	1.532379485s	26.103

Compare the results above with those for the default branch.

[codecov]

Codecov Report

❌ Patch coverage is 72.09302% with 48 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.69%. Comparing base (7f598fc) to head (b752440).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
pvm/src/pvm/tezos.rs	63.54%	17 Missing and 18 partials ⚠️
pvm/src/pvm/common.rs	81.63%	5 Missing and 4 partials ⚠️
pvm/src/pvm/node_pvm.rs	0.00%	4 Missing ⚠️

❌ Your patch status has failed because the patch coverage (72.09%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #952      +/-   ##
==========================================
- Coverage   89.77%   89.69%   -0.08%     
==========================================
  Files         123      123              
  Lines       26452    26472      +20     
  Branches    26452    26472      +20     
==========================================
- Hits        23747    23745       -2     
- Misses       2094     2111      +17     
- Partials      611      616       +5     

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