Tier 1 — Core Runtime

• src/d3tui/terminal/ - VT100 terminal implementation with ANSI color support (terminal_core, terminal_state, ansi_parser)
• src/d3tui/render/ - Hardware-accelerated rendering via PVR2 (SPECTRE integration)
• src/d3tui/font/ - Font loading and glyph rendering system
• src/d3tui/input/ - Dreamcast controller input handling with keyboard emulation
• src/d3tui/memory/ - VRAM and texture memory management
• src/d3tui/vmu/ - Visual Memory Unit integration for auxiliary display
• src/d3tui/assets/ - Asset loading and management system
• src/d3tui/patterns/ - SHACHI patterns implementation for asset pipeline
• src/d3tui/debug/ - Debugging utilities and logging
• src/main.c, src/d3tui_main.c - Main application entry points demonstrating library usage
• src/include/ - Public header files for the library API