Add comprehensive Alpha launch readiness documentation and production JWT verification testing infrastructure. **Alpha Go-Live PRD** (docs/PRD_ALPHA_GO_LIVE.md): - Track remaining work for alpha launch with real users - P0 blockers: DPoP architecture fix, JWT verification (2 items) - ✅ Validated handle resolution already implemented - ✅ Validated comment_count reconciliation already implemented - P1 infrastructure: Monitoring, logging, backups, load testing - E2E testing recommendations (7 critical gaps identified) - Timeline: 65-80 hours (~2-3 weeks) - Go/no-go decision criteria and risk assessment **JWT Verification Test** (tests/integration/jwt_verification_test.go): - E2E test for JWT signature verification with real PDS - Tests JWT parsing, JWKS fetching, and auth middleware - Validates AUTH_SKIP_VERIFY=false production mode - Handles both dev PDS (symmetric) and production PDS (JWKS) - Tests tampered token rejection Changes support alpha launch planning and production security validation. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>