dev: physics & Geometry update - janky but it works

[philiplinden]

This pull request introduces significant changes to the physics and runtime systems of the project, with a focus on consolidating force calculations, improving aerodynamic calculations, and removing unused runtime components. The key updates include unifying force-related modules, enhancing the geometry module for accurate projected area calculations, and removing the console REPL implementation.

Physics System Updates:

• Consolidated force calculations into a single forces.rs file, integrating buoyancy, drag, and weight computations into a unified net_force system. This replaces the modular structure previously spread across buoyancy.rs, drag.rs, and weight.rs (crates/buoy-physics/src/forces.rs, [[1]](https://github.com/philiplinden/buoy/pull/41/files#diff-f8867830103957d9a58855caa64f1670ad066d36de86f6606081056f6dd7a028L1-L22), [[2]](https://github.com/philiplinden/buoy/pull/41/files#diff-e205931c78c7f0bb802df03dec6fcebbeb1effc4865354d85ce3fae26812033fL1-L20), [[3]](https://github.com/philiplinden/buoy/pull/41/files#diff-0e1bf8554a9ae4e910ff2e0c6fcd8112168d7de396114270e1e6c3a57381806dL1-L25), [[4]](https://github.com/philiplinden/buoy/pull/41/files#diff-c44725ea27b4911ac64181e3e73ad44cfcbc69e6e2e5652d66033a197ad08da6L1-L13)).
• Added a DragCoefficient component and implemented aerodynamic drag force calculations based on projected area and velocity (crates/buoy-physics/src/forces.rs, [crates/buoy-physics/src/forces.rsR1-R92](https://github.com/philiplinden/buoy/pull/41/files#diff-c4009bef3ffcb157a2b30ab7f1a0540877198b047b5bc59805485095a375c68aR1-R92)).
• Introduced a helper method GasSpecies::from_species_name for creating gas species from string inputs (crates/buoy-physics/src/ideal_gas.rs, [crates/buoy-physics/src/ideal_gas.rsR85-R92](https://github.com/philiplinden/buoy/pull/41/files#diff-74818c16f61d460c5f919ed47010a5d27b07ba403f0448f11ff07421689754d2R85-R92)).

Geometry Enhancements:

• Extended the geometry module to support projected area calculations for various shapes (e.g., spheres, cuboids, cylinders) and convex hulls, enabling precise aerodynamic drag computations (crates/buoy-physics/src/geometry.rs, [[1]](https://github.com/philiplinden/buoy/pull/41/files#diff-ee9950feae77d2adf90b011d00d62ab49db500bfd1d64e3afbd64bc8eae7554dR4-R8), [[2]](https://github.com/philiplinden/buoy/pull/41/files#diff-ee9950feae77d2adf90b011d00d62ab49db500bfd1d64e3afbd64bc8eae7554dR28-R337)).

Runtime Simplifications:

• Removed the REPL-based console system, including the ConsolePlugin and related repl.rs implementation, as it was no longer in use (crates/buoy-runtime/src/console/mod.rs, crates/buoy-runtime/src/console/repl.rs, [[1]](https://github.com/philiplinden/buoy/pull/41/files#diff-9c85aa247927bacdaeb64c46629e7527ac433e5877d4eac0914fdb156921953dL1-L11), [[2]](https://github.com/philiplinden/buoy/pull/41/files#diff-7c90a5426c6663d39e55b60df674f0c39a45e3dad527b56e6b3d5e7ffa1a8f1eL1-L69)).
• Cleaned up references to the removed console module from the runtime library (crates/buoy-runtime/src/lib.rs, [crates/buoy-runtime/src/lib.rsL5-L11](https://github.com/philiplinden/buoy/pull/41/files#diff-27835be099457e898e4247f389f05ea2e63c5bf955a157f9dd9856eded0149e4L5-L11)).

Configuration Adjustments:

• Updated the scenario.ron configuration file to adjust the balloon_mass value and add a new drag_coefficient property for improved simulation accuracy (assets/configs/scenario.ron, [assets/configs/scenario.ronL2-R6](https://github.com/philiplinden/buoy/pull/41/files#diff-8f3ae18da91bbc4ecb73738c3b8eaebffc627fdcc019bdc7838bc3836d8c3414L2-R6)).