Game opening becomes a moddable JSON script driven by mc_worldsim::StartScriptRunner
and exposed to Godot via GdStartScript. Start scripts + dwarf tribe/wanderer units
live in public/resources/start_scripts; START_SCRIPTS.md documents the contract.
Adds tools/validate-start-scripts.py + wires it into CI (stage 3b) and verify.sh
(step 0b). Marks p3-14 done and regenerates the objectives dashboard.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
