refactor: move Sequelize query executor out of DAL into backend

[skwowet]

Summary

Moves the Sequelize-backed QueryExecutor bridge out of @crowd/data-access-layer and into the backend, where Sequelize actually lives. DAL keeps the shared QueryExecutor type and pg-promise re-exports only; backend callers import optionsQx from @/database/sequelizeQueryExecutor instead of the DAL barrel.

This is a structural cleanup, not a behavior change. No API routes, repository logic, or DAL query functions were refactored beyond the import path. DAL renames and test-kit work stay in follow-up PRs.

Long term, DAL should not depend on Sequelize at all. Workers and Vitest already use pgpQx; only the backend still runs on Sequelize repositories. Keeping the adapter in DAL forced a Sequelize devDependency on a shared package and made it easy for test imports to pull legacy ORM code unintentionally.

Changes

• Add backend/src/database/sequelizeQueryExecutor.ts with SequelizeQueryExecutor, TransactionalSequelizeQueryExecutor, optionsQx, and optionsBgQx
• Slim services/libs/data-access-layer/src/queryExecutor.ts to pg-promise re-exports and the QueryExecutor type only
• Remove sequelize from @crowd/data-access-layer devDependencies
• Rewire backend optionsQx / optionsBgQx imports across API handlers, services, scripts, and repositories to @/database/sequelizeQueryExecutor
• Update pnpm-lock.yaml for the DAL sequelize removal

[github-actions]

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[Copilot]

Pull request overview

Moves the legacy Sequelize QueryExecutor adapter from the shared DAL into the backend and rewires its consumers.

Changes:

• Adds the backend-local Sequelize adapter.
• Removes Sequelize from DAL dependencies.
• Updates backend imports to use the new adapter location.

Review note: Unrelated AWS lockfile rewrites should be reverted. The PR title also lacks the required JIRA key.

Reviewed changes

Copilot reviewed 29 out of 32 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
services/libs/data-access-layer/src/queryExecutor.ts	Retains database re-exports only.
services/libs/data-access-layer/package.json	Removes Sequelize dependency.
pnpm-lock.yaml	Updates dependency graph.
backend/src/database/sequelizeQueryExecutor.ts	Adds backend-local adapter.
backend/src/services/organizationService.ts	Rewires adapter import.
backend/src/services/memberService.ts	Rewires adapter imports.
backend/src/services/member/memberIdentityService.ts	Rewires adapter import.
backend/src/database/repositories/sequelizeRepository.ts	Uses local adapter classes.
backend/src/database/repositories/repositoryBase.ts	Uses local adapter factory.
backend/src/database/repositories/organizationRepository.ts	Rewires adapter import.
backend/src/database/repositories/memberRepository.ts	Rewires adapter imports.
backend/src/bin/scripts/merge-similar-organizations.ts	Rewires adapter import.
backend/src/bin/scripts/merge-members.ts	Rewires adapter import.
backend/src/api/public/v1/organizations/getOrganization.ts	Rewires adapter import.
backend/src/api/public/v1/organizations/createOrganization.ts	Rewires adapter import.
backend/src/api/public/v1/members/work-experiences/verifyMemberWorkExperience.ts	Rewires adapter import.
backend/src/api/public/v1/members/work-experiences/updateMemberWorkExperience.ts	Rewires adapter import.
backend/src/api/public/v1/members/work-experiences/getMemberWorkExperiences.ts	Rewires adapter import.
backend/src/api/public/v1/members/work-experiences/deleteMemberWorkExperience.ts	Rewires adapter import.
backend/src/api/public/v1/members/work-experiences/createMemberWorkExperience.ts	Rewires adapter import.
backend/src/api/public/v1/members/resolveMember.ts	Rewires adapter import.
backend/src/api/public/v1/members/project-affiliations/patchProjectAffiliation.ts	Rewires adapter import.
backend/src/api/public/v1/members/project-affiliations/getProjectAffiliations.ts	Rewires adapter import.
backend/src/api/public/v1/members/maintainer-roles/getMemberMaintainerRoles.ts	Rewires adapter import.
backend/src/api/public/v1/members/identities/verifyMemberIdentity.ts	Rewires adapter import.
backend/src/api/public/v1/members/identities/getMemberIdentities.ts	Rewires adapter import.
backend/src/api/public/v1/members/identities/createMemberIdentity.ts	Rewires adapter import.
backend/src/api/public/v1/members/createMember.ts	Rewires adapter import.
backend/src/api/public/v1/affiliations/getAffiliations.ts	Rewires adapter import.
backend/src/api/public/v1/affiliations/getAffiliationByHandle.ts	Rewires adapter import.
backend/src/api/public/middlewares/staticApiKeyMiddleware.ts	Rewires adapter import.
backend/src/api/member/memberMerge.ts	Rewires adapter import.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file

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