perf: smooth map navigation and align the minimap

[prayujt]

Summary

• Rotate the minimap clockwise so the isometric world’s left edge appears at the top, including viewport and pointer navigation.
• Move whole-world camera transforms into a Pixi render group.
• Cache visible tile bounds, hide and reuse offscreen tiles, and suppress redundant camera store updates during movement.

Test plan

• Run Prettier on the changed files
• Run ESLint on the changed files
• Run yarn run check
• Run yarn build
• Verify tile (63,55) projects from minimap (63,55) to (19,63) on a 75×75 map