[parquet-sdk][token_v2] migrate CurrentTokenV2Metadata

[yuunlimm]

Description

• add Raw CurrentTokenV2Metadata
• migrated CurrentTokenV2Metadata

TestPlan

ran both legacy and sdk postgres processor .. num of rows match for all three.

[yuunlimm]

• [parquet-sdk][token_v2] migrate CurrentTokenV2Metadata #633 👈 (View in Graphite)
• main

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[codecov]

Codecov Report

Attention: Patch coverage is 0.77519% with 128 lines in your changes missing coverage. Please review.

Project coverage is 12.0%. Comparing base (fde73c1) to head (29bc727).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...on/models/token_v2_models/raw_v2_token_metadata.rs	0.0%	47 Missing ⚠️
...ust/processor/src/processors/token_v2_processor.rs	0.0%	23 Missing ⚠️
...arquet/models/token_v2_models/v2_token_metadata.rs	0.0%	18 Missing ⚠️
...t_token_v2_processor/parquet_token_v2_extractor.rs	0.0%	15 Missing ⚠️
...stgres/models/token_v2_models/v2_token_metadata.rs	0.0%	8 Missing ⚠️
...src/steps/token_v2_processor/token_v2_extractor.rs	0.0%	8 Missing ⚠️
rust/sdk-processor/src/parquet_processors/mod.rs	0.0%	5 Missing ⚠️
...c/parquet_processors/parquet_token_v2_processor.rs	0.0%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##            main    #633      +/-   ##
========================================
- Coverage   47.9%   12.0%   -36.0%     
========================================
  Files        220     222       +2     
  Lines      26727   26796      +69     
========================================
- Hits       12819    3218    -9601     
- Misses     13908   23578    +9670     

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