Read endpoint with fsm

[shreeyaadhikari]

Implement status state machine and wire GET /api/v1/status

🎫 Issue #488

▶ Changelist:

• Defined MachineInput type in status/types.ts and changed ApplicationStatus, DecisionStatus, and RsvpStatus to import from lib/types/user.ts instead of redefining them locally
• Rewrote returnDashboardBranch in machine.ts to accept a single MachineInput object
• Updated service.ts to fetch user from applicant_data Mongo collection via getDb(), read dates and showDecision from mock-singletons.ts, and return full PortalStatusResponse
• Updated route.ts to read userId from query string and call getPortalStatus
• Updated fetchPortalStatus.ts fallback to use new MachineInput signature
• Added 8 unit tests in machine.test.ts covering all branch logic cases
• Added jest.config.ts and Jest dependencies to enable TypeScript test running

📝 Notes + 🚧 TODO:

• Aligning RsvpStatus to user.ts required changing "submitted" to "confirmed" and "not-submitted" to "unconfirmed" across several dashboard components (AdmittedView.tsx, SubmittedView.tsx, rsvp/page.tsx, InProgressView.tsx, mock-singletons.ts).
• TODO: replace with getSingleton() calls once Ticket 5 lands real singleton service. Dates and showDecision currently read from mock-singletons
• TODO: gate with requireUser() once Ticket 1 ships its helpers. userId currently reads from query string as placeholder

🧪 Testing:

• 8 unit tests covering all branch logic cases, all passing (yarn jest)

🎥 Screenshots & Screencasts:

Tests:

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Project	Deployment	Actions	Updated (UTC)
core-live	Ready	Preview, Comment	Jul 1, 2026 8:32pm
core-main	Ready	Preview, Comment	Jul 1, 2026 8:32pm