GraphQL API for bene-reach statistic (Dashboard)

[pylipp]

https://trello.com/c/GJBuu7rx

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.16%. Comparing base (4ddb69e) to head (416a035).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2794      +/-   ##
==========================================
+ Coverage   77.13%   77.16%   +0.02%     
==========================================
  Files         327      327              
  Lines       23458    23486      +28     
  Branches     2355     2358       +3     
==========================================
+ Hits        18095    18123      +28     
  Misses       5315     5315              
  Partials       48       48              

Flag	Coverage Δ
backend	99.65% <ø> (+<0.01%)	⬆️
frontend	69.99% <ø> (ø)
sharedComponents	68.72% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[Copilot]

Pull request overview

This PR adds a new protected GraphQL statistics query (beneficiaryReach) to power the dashboard’s “beneficiary reach” statistic, including new schema types/enums, backend computation logic, and an endpoint test to validate the response structure and contents.

Changes:

• Extend the GraphQL schema with beneficiaryReach(baseId: Int!) plus supporting BeneficiaryReach* types and BeneficiaryReachType enum.
• Implement the backend resolver + statistics CRUD query logic to assemble reach “facts” and related dimensions (beneficiaries, tags).
• Add an endpoint test asserting the expected beneficiaryReach response.

Reviewed changes

Copilot reviewed 8 out of 10 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
graphql/generated/schema.graphql	Adds generated schema types/unions/enums for beneficiaryReach.
graphql/generated/graphql-env.d.ts	Updates generated TS introspection types for the new query/types.
back/test/endpoint_tests/test_statistics.py	Adds endpoint test coverage for beneficiaryReach.
back/boxtribute_server/graph_ql/enums.py	Registers BeneficiaryReachType for GraphQL enum mapping.
back/boxtribute_server/graph_ql/definitions/protected/queries.graphql	Exposes beneficiaryReach on the protected Query type.
back/boxtribute_server/graph_ql/definitions/basic/types.graphql	Adds BeneficiaryReachData/Result/Dimensions and updates unions.
back/boxtribute_server/graph_ql/definitions/basic/enums.graphql	Adds GraphQL enum BeneficiaryReachType.
back/boxtribute_server/enums.py	Introduces backend BeneficiaryReachType enum.
back/boxtribute_server/business_logic/statistics/queries.py	Adds resolver beneficiaryReach with authorization + DB replica usage.
back/boxtribute_server/business_logic/statistics/crud.py	Implements compute_beneficiary_reach and beneficiary dimension generation.