Review NestJS module / provider / dependency-injection code before you PR for common regressions. Injection scope misuse (DEFAULT vs REQUEST vs TRANSIENT), circular module dependencies masked by `forwardRef`, missing `exports` in module definitions, exception filter / interceptor / pipe / guard orde
Review NestJS module / provider / dependency-injection code before you PR for common regressions. Injection scope misuse (DEFAULT vs REQUEST vs TRANSIENT), circular module dependencies masked by `forwardRef`, missing `exports` in module definitions, exception filter / interceptor / pipe / guard ordering, and async-provider typing gaps. Triggers include "review this NestJS code", "check my module w