Ovumcy v0.2.0 release notes

Highlights

Added dark mode with persistent client-side preference (ovumcy_theme) and localized toggle labels.
Added Playwright smoke coverage for theme persistence across reload and secondary page.
Improved register password mismatch UX: inline validation before submit, both password fields stay intact.
Tightened mobile layout behavior in calendar/day editor and improved light-theme slider contrast.
Stabilized stats empty states to reduce layout jumps when data appears.
Switched day editor behavior to explicit Save action — no field-change auto-save.

Added/updated project governance docs: SECURITY.md, CONTRIBUTING.md, CODE_OF_CONDUCT.md.
Hardened onboarding and settings date validation.
Kept privacy-safe auth behavior and URL hygiene for registration/login/recovery flows.

No database migration is required for this release.
Existing deployments should rebuild frontend assets and restart the app service as usual.