fix(ci): pass lint + check

[jeremie0342]

Backend

• ruff B008: use Annotated[Session, Depends(get_session)] alias instead of default-arg Depends
• ruff E501: wrap long alembic column
• Add uv.lock so uv sync --frozen works

Frontend

• Extract Dict as a plain interface (fields typed string, not literals) into src/lib/i18n/types.ts
• en.ts, fr.ts, index.svelte.ts import Dict from types.ts, fixes svelte-check assignability
• prettier --write across sources
• Commit package-lock.json