Student curriculum timeline

This is a detailed, well-specified build. Let me quickly describe the reference images, then check the project setup and build it.

Image descriptions:

A Korean math-academy progress panel showing tabs (진도/자료), recent progress history, and in-progress curricula with per-회차 (round) editing, video/PDF lists, and homework assignment controls.
An Excel-style WBS Gantt chart with day-level columns (월화수목금) grouped into weeks and phases (1단계–4단계), task rows with progress %, and colored period bars.
A quarterly project Gantt chart with phases on the left and a month/week timeline on the right, using colored phase bands and task bars.
A folder-permission management panel listing assigned folders and a subject selection list with resource counts.

Let me look at the project structure.

I have everything I need (Tailwind v4, shadcn, date-fns, lucide-react). Let me check which UI components are available.

All components exist and I have date-fns, lucide-react, and shadcn ready. I'll build a dense, Gantt-style operational UI with a clear separation: types + mock data in lib/, and modular components in components/curriculum/. Let me create the data layer first.

Now the timeline math utilities and visual helpers:

Now the small presentational components — badges:

Now the top-bar components (header, view tabs, filters):

Now the shared row-model builder used by both the tree and the timeline (keeps row heights aligned):

Now the timeline bar with resize affordances:

Let me add header tier height constants to the timeline lib:

Now the CurriculumTreeTable (left sticky panel):

Now the TimelineGrid (right scrollable panel):

Now the WeekDetailPanel (daily breakdown):

Now the CurriculumDetailDrawer with clearly separated actions:

Now the main page component that wires it together with a spreadsheet-style single-scroll (sticky left column, scrollable timeline). Let me add sonner toaster usage too.

Now wire up the page and add the Toaster:

Let me update the layout metadata and add the background class to <html>:

Now let me verify it compiles and check for errors by checking the dev logs after a build check:

Bash

Run this command?

cd /vercel/share/v0-project && pnpm exec tsc --noEmit 2>&1 | head -40