Disk Activity Monitor 1.4.15

# Disk Activity Monitor v1.4.15

## What's changed

### Charts
- **Chart zoom now requires the Ctrl modifier.** Mouse-wheel scrolling over the live disk activity chart and the total-written trend chart no longer changes the time window on its own — hold **Ctrl** while scrolling to zoom. Plain wheel scrolling is ignored by the zoom handler, so the dashboard scrolls normally. (`0bc09c2`)
- **Restyled chart hover tooltip.** The tray dashboard's chart hover tooltip was reworked into a dark, high-contrast card: a near-black rounded surface with a subtle border, drop shadow, Segoe UI semibold text with a muted caption line and a bright value line, and wrapping capped at 380px. (`5761d61`)

### Repository
- Added `_SCRATCHPAD` to `.gitignore`. (`cdb41a7`)

### Tests
- New `ChartControlsTests` coverage for the tooltip content builder, plus expanded `MainWindowCoverageTests` for the chart wheel/zoom gesture behavior.

**Full changelog:** `v1.4.14...cdb41a720ea8f272bae88230fd255659e9427ae1`

## Installation

Download the installer for your architecture from the assets below and run it:

| Asset | Target |
| --- | --- |
| `DiskActivityMonitor-Setup-1.4.15-x64.exe` | 64-bit Windows |
| `DiskActivityMonitor-Setup-1.4.15-x86.exe` | 32-bit Windows |

Requirements: Windows 10 or Windows 11. The release build is self-contained — no separate .NET runtime is required.

Alternatively, install from source in an **elevated** PowerShell session:

```powershell
.\scripts\install.ps1

To uninstall (elevated):

.\scripts\uninstall.ps1

Collected history and settings remain in %ProgramData%\DiskActivityMonitor\; per-user preferences stay under %LOCALAPPDATA%\DiskActivityMonitor\.

<!-- DAM_ASSETS START -->
## Assets
| File | Size (bytes) | Size (MB) | SHA-256 |
| --- | ---: | ---: | --- |
| DiskActivityMonitor-Setup-1.4.15-x64.exe | 87423061 | 83.37 | 2d8c0c7a58d569649a9cdd1ffb7d1039376bb2b7420209aa778b2d62eeb4c4af |
| DiskActivityMonitor-Setup-1.4.15-x86.exe | 80275523 | 76.56 | 9f0987501922ca46e812512554ef452406f4ee453b1105cea794e876ea3eca57 |
<!-- DAM_ASSETS END -->

<!-- DAM_VALIDATION START -->
## Validation
- Built variants: x64, x86
- Build configuration: Release
- Commit target: cdb41a720ea8f272bae88230fd255659e9427ae1
- Assets verified locally: DiskActivityMonitor-Setup-1.4.15-x64.exe, DiskActivityMonitor-Setup-1.4.15-x86.exe
<!-- DAM_VALIDATION END -->

<!-- DAM_CHANGELOG START -->
## Full changelog
[Compare v1.4.14...v1.4.15](https://github.com/andrewtheart/DiskActivityMonitor/compare/v1.4.14...v1.4.15)
<!-- DAM_CHANGELOG END -->