fix: smooth filter-line hover, draw the open candle's 5-second path, pick up MoonUI fixes

[kirillDevPro]

What & why

• Filter-line hover (chart captions). Hit zones used the glyph box height, taller than the line pitch, so neighbouring zones overlapped and two lines lit at once; the tint was computed from the panel's cached cursor at render time and lagged the pointer. Zones now span exactly one line pitch and the tint is GPUI hover styling.
• Open candle's 5-second path (Open candle is blank left of the live ticks — draw the 5-second path the core already sent #962). With recent candles hidden, the open bucket on a wide timeframe stayed empty left of the raw trade dots. The core already sends its folded 5-second mini-candles; they are kept left of the oldest raw dot and drawn inside the hidden bucket with the user's candle style on DX11, Metal and wgpu. The hide rule, raw dots, volume band and live follow are unchanged.
• MoonUI pin → 0c4a7c4 (fix: keep pressed tooltips hidden and make sidebar rows contiguous MoonUI#119): a press on a tooltip's trigger keeps the tooltip hidden (no tooltip over a just-opened context menu), and sidebar menu rows have no dead gaps between items.

Closes #962

How to verify

• Hover the strategy-filter lines in a chart caption: exactly one line lights, following the pointer.
• 1д candles + trades with hidden recent candles: the open day shows the 5-second path up to the raw dots.
• Report: right-click a coin cell — no tooltip over the menu. Settings: a click between two nav items selects one.

Local checks on this branch: cargo fetch --locked, cargo fmt --all -- --check, cargo clippy --workspace --all-targets -- -D warnings, cargo test --workspace (7132 passed). Metal and wgpu paths are not compiled locally (macOS probe in CI).