Audit Log viewer, Swagger documentation, refresh token, user entity.

[KuchiMercy]

Linked issues

Closes #1037
Closes #1035
Closes #1061
Closes #1062

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[yusuftomilola]

Approving. This adds a real Audit Log module (controller + entity + expanded service logic), JWT refresh-token support in auth.service/auth.controller, Swagger doc wiring in main.ts, and extends the user entity with profile fields - all consistent with existing module conventions (module/controller/service/entity split matches the rest of the codebase). Note for the record: CI is currently red on this branch (Backend, Frontend, Frontend Lint/Build, and WASM Size Delta jobs are failing) - merging anyway per repo admin decision, but the failures should be triaged and fixed in a fast-follow so main does not stay broken.