Compose Multiplatform First Step

[283375]

• Basic working proof-of-concept of multiplatform shared logics, UI, and tests
• Adjust CI

[283375]

/opencode /review pr

[opencode-agent]

Approve — this is a clean, well-tested first step toward multiplatform. The architecture is sound and the new components have solid test coverage. The three suggestions above are minor and non-blocking.

opencode session  |  github run

[283375]

/opencode

[opencode-agent]

PR Summary: Compose Multiplatform First Step

This PR introduces Kotlin Multiplatform (KMP) support to the project, moving core logic, UI components, and theming into a shared multiplatform module. It's an approved, well-tested proof-of-concept with:

• New shared/ module with commonMain, androidMain, jvmMain, and test sources containing ported models, calculators, UI components (e.g., DecimalStepperTextField, AutoRepeatController), and theming
• New desktopApp/ module as a desktop-proof-of-concept entry point
• CI adjustments — updated workflows (check.yml, build_unstable.yml, connected-android-test.yml) and a new test script
• Code migration — renamed/moved files from app/ and core/ into shared/, updated imports; removed obsolete tests
• i18n — added strings.xml for English and Chinese (values-zh-rCN)
• 21 commits, 48 files changed (+1768 / -429), state: open, base: master

The review comment marked it as approved with only minor, non-blocking suggestions.

opencode session  |  github run