Improve platforming feel, add player health/respawn, enemy chase AI, rooms 2–4, and HUD rebuild#5

LloydNicholson merged 2 commits into

copilot/rewrite-project-in-godotLloydNicholson/sluggers:copilot/rewrite-project-in-godotfrom

copilot/improve-platforming-and-aiLloydNicholson/sluggers:copilot/improve-platforming-and-aiCopy head branch name to clipboard