Planner Recipe Workbench Tasks

RE1: Define recipe-book.json and its schema.
RE2: Seed mainline magical-law recipes through first warp.
RE3: Implement searchable catalogs and graph navigation.
RE4: Implement item, recipe, and machine inspectors.
RE5: Implement validation, issue navigation, and dependency-cycle detection.
RE6: Implement undo, redo, draft recovery, import, export, and direct save.
RE7: Add a localhost-only launcher with save backups.
RE8: Verify browser layout, interactions, and save round-trip.
RE9: Connect Godot runtime import after the simulation content model is implemented.