Root Cause: CSS flex items default to min-height: auto, which prevents
flex-1 elements from shrinking below their content size. This caused
the FilesPanel to grow beyond its allocated space when the file tree
had many entries, pushing content off-screen.
Changes:
- FilesPanel.tsx: Added min-h-0 to root div to override min-height: auto
This allows flex-1 to actually constrain height and enable scrolling
- FileTree.tsx: Removed redundant overflow-auto and h-full from root div
The parent (FilesPanel flex-1 overflow-auto) already handles scrolling.
Nested scroll containers create height resolution issues.
The sidebar layout is now a clean single-scroll-container hierarchy:
Sidebar (flex flex-col, no overflow)
↳ SESSION (shrink-0, natural height)
↳ PROJECT (shrink-0, natural height)
↳ FilesPanel (flex-1 min-h-0) — constrained to available space
↳ Header (natural height)
↳ Scroll area (flex-1 overflow-auto) — THE scroll container
↳ FileTree (p-2 only) — no overflow, no h-full
↳ Footer (natural height)
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