Refactor Workflow

Conventions this workflow depends on (read the ones your change touches before writing code):

• CorePlatformModules.md — required before touching packages/core (platform-split files, handwritten .d.ts).
• CodeComments.md — comment rules for all TypeScript edits.
• WritingUnitTests.md — test expectations and environment constraints.
• CONTRIBUTING.md — commit message format.

Phase 1: Scope

• Define what is being restructured and, explicitly, what "unchanged behavior" means for it: same public API, same observable behavior on both platforms.
• Public API changes are NOT refactors — if the .d.ts surface must change, stop and confirm the scope with the user first.

Phase 2: Baseline

• Run the affected package's tests BEFORE touching anything (npx nx run core:test); they must be green.
• Where the code being restructured has no spec coverage, add specs first to lock in current behavior — they are the safety net for every step that follows.

Phase 3: Restructure in small steps

• Work in small, independently green steps; run the focused tests between steps.
• Keep .ios.ts / .android.ts in parity at every step — moving shared logic into -common.ts is a common refactor here, and both platform files must be updated together.
• Delete dead and commented-out code you uncover; do not carry it along.

Phase 4: Finish

• Full package target green (npx nx run core:test), then format: npx nx format:write.
• Commit with the conventional format, e.g. refactor(core): <subject>.
• Open the PR with gh, following the PR template; state that behavior is unchanged and how that was verified.