refactor: everything

[nberlette]

• chore: move trig/const/rand tests to src dir
• refactor(ieee754): abstract out common parts of float16/32/64 modules
• refactor(float16): use ieee754 abstractions for float16
• feat(float16): add float16/constants submodule
• feat(float16): add float16/guards submodule
• refactor(float32): use ieee754 abstractions for float32 ops
• feat(float32): add float32/constants submodule
• feat(float32): add float32/guards submodule

[Copilot]

Pull Request Overview

This PR refactors the IEEE-754 floating-point implementation by extracting common functionality into a shared abstraction layer. The changes consolidate duplicate code between float16 and float32 modules while adding new constants and type guard submodules.

• Introduces a shared IEEE-754 abstraction module to eliminate code duplication
• Adds constants and guards submodules for both float16 and float32 formats
• Moves test files from root to src directory for better organization

Reviewed Changes

Copilot reviewed 14 out of 15 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
src/random.test.ts	Updates import path to relative reference
src/internal/ieee754.ts	New shared IEEE-754 encoding/decoding abstraction
src/float32/round.ts	Minor comment formatting improvement
src/float32/mod.ts	Adds exports for new constants and guards submodules
src/float32/guards.ts	New type guard functions for float32 validation
src/float32/encode.ts	Refactored to use shared IEEE-754 abstraction
src/float32/decode.ts	Refactored to use shared IEEE-754 abstraction
src/float32/constants.ts	New constants module for float32 format specifications
src/float16/mod.ts	Adds exports for new constants and guards submodules
src/float16/guards.ts	New type guard functions for float16 validation
src/float16/encode.ts	Refactored to use shared IEEE-754 abstraction
src/float16/decode.ts	Refactored to use shared IEEE-754 abstraction
src/float16/constants.ts	New constants module for float16 format specifications
src/constants.test.ts	Updates import path to relative reference