fix: keep unique items visible in analysis

[Roman-Andr]

Impact

• keeps «Уникальные товары» beside «Дешевле всех» in the visible center of the analysis dashboard
• moves the less critical average-price card to the right edge
• preserves count and currency number formats after the layout change
• synchronizes uv.lock with project version 0.3.1

For the supplied data copy.xlsm, the verified values are 149 cheapest-everywhere items and 2415 unique items.

Root cause

The unique-items metric existed in cells G5:H5, but the wide dashboard pushed it outside the initial viewport on narrower Excel windows. It therefore appeared to be missing even though its value was present.

Validation

• .venv/bin/ruff check .
• .venv/bin/mypy
• UV_CACHE_DIR=/tmp/pharmparser-uv-cache uv lock --check
• UV_CACHE_DIR=/tmp/pharmparser-uv-cache uv run pytest --ignore=tests/integration/test_gui.py — 327 passed
• focused workbook and grid tests — 24 passed

The remaining GUI tests require Xvfb and are covered by CI.