The Health application ships with a large set of features that are reflected in the codebase today. The sections below summarise the current capabilities and reference the areas of the repository that implement them so you can trace behaviour quickly.

• Single sign-on via Google OAuth 2 (OmniauthCallbacksController + Devise) with TAMU e-mail enforcement.
• Role-aware dashboards: students, advisors, and admins are redirected to dedicated experiences (DashboardsController).
• Environment-controlled role switcher to preview other dashboards in development/test or when ENABLE_ROLE_SWITCH=1 (dashboards#switch_role, app/views/shared/_role_switcher.html.erb).
• Profile gating that forces incomplete student profiles through the onboarding flow before accessing the app (ApplicationController#check_student_profile_complete).

• Dashboard overview of assigned surveys, completion status, and quick actions (dashboards#student).
• Secure survey access with signed download tokens for response PDFs and composite reports (SurveyResponsesController, SurveyResponse.build).
• Self-service profile management for program metadata, contact information, and accessibility preferences (StudentProfilesController, SettingsController).

• Advisee roster management with key stats and quick links to student records (dashboards#advisor).
• Survey assignment workflows that populate StudentQuestion records and create SurveyAssignments, including bulk “assign all” actions (Advisors::SurveysController).
• Unassign and notification flows that clean up responses and alert students when surveys change (Advisors::SurveysController#unassign, Notification).
• Feedback capture tools tied to surveys and competencies (FeedbacksController, Feedback model).

• Survey builder with nested categories, questions, and track assignments (Admin::SurveysController, Survey, Category, Question).
• Lifecycle controls for activating, archiving, previewing, and deleting surveys, each logged for auditing (SurveyChangeLog, SurveyAuditLog).
• Role & membership management (dashboards#manage_members, #update_roles) plus advisor/student bulk assignments (#manage_students, #update_student_advisors).
• System overview dashboard with program-wide counts and recent administrator activity (dashboards#admin).

• Track-aware survey distribution using SurveyTrackAssignment to target Residential vs Executive cohorts.
• Automatic assignment hooks (SessionsController#after_sign_in_path_for, SurveyAssignments::AutoAssigner hook point) ensuring students receive the correct surveys on sign-in.
• Response capture across multiple question types, evidence URLs, and advisor evaluations (StudentQuestion, QuestionResponse).
• Evidence link validation to confirm Google Drive/Docs permissions before submission (EvidenceController#check_access).
• Advisor & student feedback loops stored per category with historical context (Feedback, CompositeReportGenerator#feedbacks_by_category).

• Interactive analytics hub backed by Reports::DataAggregator, surfaced via a React + Chart.js interface (app/javascript/reports/app.js, reports_controller).
• Filterable insights for tracks, semesters, advisors, surveys, competencies, and students (Api::ReportsController).
• Export pipelines for PDF (WickedPdf) and Excel (ReportsController#export_pdf, Reports::ExcelExporter) with section-aware exports.
• Student records matrix summarising completion progress, advisor relationships, and feedback timelines (StudentRecordsController#index).
• Composite assessment PDFs combining survey answers, feedback, and evidence with caching (CompositeReportGenerator, CompositeReportCache).

• In-app notification centre with unread counters, list views, and batch mark-as-read (NotificationsController, Notification model).
• Event-driven messaging for assignment, due soon, overdue, completion, survey updates, and archive events (SurveyNotificationJob, SurveyAssignmentNotifier).
• User preferences for notification delivery and text scaling persisted in the users table (SettingsController).

• High-contrast mode toggle with persistent preferences (app/javascript/application.js, app/assets/stylesheets/application.css).
• User-controlled font scaling via text_scale_percent applied at the <html> root (layouts/application.html.erb, SettingsController).
• Modern browser enforcement to guarantee support for CSS features used throughout the UI (ApplicationController#allow_browser).

• Reports JSON API powering the analytics SPA (/api/reports/* routes, Api::ReportsController).
• Evidence checker endpoint for validating external artefacts (/evidence/check_access).
• Health check exposed at /up for monitoring (config/routes.rb).

• Audit trails for survey changes (SurveyChangeLog, SurveyAuditLog) and admin previews.
• Deduplicated notifications using scoped uniqueness on Notification records.
• Signed tokens securing survey response downloads (SurveyResponse#signed_download_token).

• Docker Compose stack for local development with separate web, css, and db services (docker-compose.yml).
• Seed data generator that provisions admin/advisor/student personas, surveys, and synthetic responses (db/seeds.rb).
• Unified test runner (run_tests.rb) wrapping rails test with optional coverage and suite selection.
• Heroku deployment guides covering ownership transfer and day-to-day platform operations (see Heroku-Guide.md, Heroku-Transfer.md).

• Email delivery: UI toggles exist, but mailers beyond Devise defaults have not been wired to notification events.
• Automatic track assignment service: controllers invoke SurveyAssignments::AutoAssigner; ensure the service is present and configured for your deployment.
• Additional accessibility presets such as dyslexia-friendly fonts and reduced motion modes (placeholders noted in stylesheets).