Update backend source

fix(docker): add OpenSSL for Prisma and sql-wasm.wasm for SQLite fallback

fix(build): switch to CommonJS format for Express compatibility

fix(docker): switch from alpine to slim for glibc compatibility

refactor: TypeScript monorepo cleanup for HF/Vercel deployment

Update HF Dockerfile with prisma fix

chore: update deployment Dockerfile template

fix: remove invalid COPY syntax in Dockerfile.hf

fix: update Dockerfile.hf to use npm install

fix: esbuild Docker build + email:new EventType for HuggingFace deployment

feat: HF Spaces deployment configuration

Minimal HF Spaces deployment