feat: manual theme picker (light/dark/system) in Settings

Theme previously followed only the OS's prefers-color-scheme, which
switches automatically on this user's Mac at sunset/sunrise. Adds an
explicit override in Settings: Light/Dark/System, System being the
previous (default) auto-follow-the-OS behavior.

Persisted client-side in localStorage (lib/theme.ts, same pattern as
language) rather than server-side like currency — it's a pure display
preference, and synchronous localStorage reads are what make the
anti-FOUC inline script in index.html possible. index.css already had the
[data-theme] CSS variables laid in ahead of time; only the JS to actually
set the attribute, and the Settings UI, were missing.

Covered by 2 new Playwright specs (theme-switcher.spec.ts) run against the
isolated e2e stack: explicit choice overrides a dark OS and survives
reload; switching back to "system" doesn't leave a stale forced theme.
This commit is contained in:
ZProger
2026-08-16 23:12:20 +03:00
parent 8e46726b4d
commit 75dd43c8e3
10 changed files with 157 additions and 4 deletions

View File

@@ -6,7 +6,7 @@ from pydantic_settings import BaseSettings, SettingsConfigDict
# Single source of truth for the running app's version — surfaced in the API
# title and embedded in exported backups so an old file can be told apart
# from a current one.
APP_VERSION = "0.18.0"
APP_VERSION = "0.19.0"
class Settings(BaseSettings):