Reference projects: CTR-ModSDK, ctr-native and RecompOne

We analyzed what can be reused from PS1 projects and defined two tracks toward a native port.

• We will adopt the game-agnostic psx-modding-toolchain as the build/patch base instead of writing our own.
• RecompOne (static MIPS→C# recompilation) becomes the "fast track" to run without an emulator.
• Track A (Ghidra/understanding) feeds Track B (port) — the two reinforce each other.