fix(graphql): Add base/head aliases to Component/FlagComparison types

[sentry]

This PR addresses a GraphQLError where clients attempted to query base and head fields on the ComponentComparison GraphQL type, which only exposed baseTotals and headTotals.

The root cause was an inconsistency in the GraphQL schema: FlagComparison used base and head fields for coverage totals, while ComponentComparison used baseTotals and headTotals. This led to client queries expecting a consistent field naming convention.

To resolve this, base and head fields have been added as deprecated aliases to both ComponentComparison and FlagComparison types in the GraphQL schema. These new fields map directly to the existing baseTotals and headTotals resolvers, ensuring backward compatibility and allowing clients to use the expected field names while being gently guided towards the canonical *Totals fields.

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Fixes API-ESJ

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.82%. Comparing base (d8942db) to head (352ce94).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...types/component_comparison/component_comparison.py	66.66%	2 Missing ⚠️
...aphql_api/types/flag_comparison/flag_comparison.py	66.66%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1873      +/-   ##
==========================================
- Coverage   91.83%   91.82%   -0.01%     
==========================================
  Files        1332     1332              
  Lines       51830    51842      +12     
  Branches     1647     1647              
==========================================
+ Hits        47598    47606       +8     
- Misses       3911     3915       +4     
  Partials      321      321              

Flag	Coverage Δ
apiunit	94.73% <66.66%> (-0.02%)	⬇️

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[codecov-notifications]

Codecov Report

❌ Patch coverage is 66.66667% with 4 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...types/component_comparison/component_comparison.py	66.66%	2 Missing ⚠️
...aphql_api/types/flag_comparison/flag_comparison.py	66.66%	2 Missing ⚠️

❌ Your patch check has failed because the patch coverage (66.66%) is below the target coverage (90.00%). You can increase the patch coverage or adjust the target coverage.

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