Port the (6,6)-pebble game implementation from data/synthetic/pebble-game.py.
Imports shared types from solver.datagen.types. No behavioral changes.
- Full type annotations on all methods (mypy strict)
- Ruff-compliant: ternary, combined if, unpacking
- Re-exported from solver.datagen.__init__
Closes#2
Port JointType, RigidBody, Joint, PebbleState, and ConstraintAnalysis
from data/synthetic/pebble-game.py into the solver package.
- Add __all__ export list
- Put typing.Any behind TYPE_CHECKING (ruff TCH003)
- Parameterize list[dict] as list[dict[str, Any]] (mypy strict)
- Re-export all types from solver.datagen.__init__
Closes#1
