Stage 5: Add Prisma integration and enhance mission management

- Introduced Prisma as a dependency in package.json and updated pnpm-lock.yaml.
- Created Prisma module and service for database interactions.
- Added initial Prisma schema and migration for user, survivor, mission, and related entities.
- Implemented throttling in the API using @nestjs/throttler for rate limiting.
- Enhanced mission management logic to utilize Prisma for database transactions.
- Updated missions controller and service to handle mission state and participant management.
- Added Twitch PubSub service for real-time updates on mission states.

libs/mission-logic/src/index.ts

@@ -1 +1,2 @@
 export * from './lib/encounter-resolver';
+export * from './lib/perk-math';