GridForge-Unity v4.0.0

This release updates the project to FixedMathSharp v3.0.0 and SwiftCollections v4.0.0. While the dependencies is mostly internal, FixedMathSharp` numerics are part of our public API surface, so this is released as a breaking update.

Breaking

• Upgraded to FixedMathSharp v3.0.0.
• FixedMathSharp removed/renamed precision-related members and tightened deterministic numeric APIs (including float-overload removals), which may require consumer code changes.
• Tolerance/epsilon behavior in numeric comparisons may differ from previous versions.

What This Means For Consumers

• Rebuild and run tests against this release before promotion.
• Update any call sites relying on removed float-based numeric overloads.
• Replace Precision-style usage with the new MinIncrement/updated tolerance semantics where applicable.
• Re-validate tolerance-sensitive logic (movement thresholds, comparisons, convergence checks, serialization expectations).

Why This Release

FixedMathSharp underpins core systems across the stack, so surfacing this dependency transition as an explicit release provides a clear integration checkpoint and migration signal.