feat: Add digital, dry, ink, and paint brush presets; implement regression testing hooks

- Introduced new crates for digital brushes, dry media brushes, ink brushes, and paint brushes, each containing various presets.
- Updated the menus to include "Paste Special" and "Paste as New Layer" options.
- Enhanced the feature scorecard tests to validate selection texture encoding.
- Added a regression gate workflow for automated testing on push and pull requests.
- Implemented Git hooks for pre-commit checks to ensure code formatting and run tests before commits.
- Created a settings file for local configurations.

Cargo.lock

@@ -2605,6 +2605,13 @@ dependencies = [
  "rstest",
 ]
 
+[[package]]
+name = "hcie-digital-brushes"
+version = "0.1.0"
+dependencies = [
+ "hcie-engine-api",
+]
+
 [[package]]
 name = "hcie-document"
 version = "0.1.0"
@@ -2632,6 +2639,13 @@ dependencies = [
  "rstest",
 ]
 
+[[package]]
+name = "hcie-dry-media-brushes"
+version = "0.1.0"
+dependencies = [
+ "hcie-engine-api",
+]
+
 [[package]]
 name = "hcie-engine-api"
 version = "0.1.0"
@@ -2755,7 +2769,11 @@ dependencies = [
  "evdev",
  "futures-util",
  "hcie-build-info",
+ "hcie-digital-brushes",
+ "hcie-dry-media-brushes",
  "hcie-engine-api",
+ "hcie-ink-brushes",
+ "hcie-paint-brushes",
  "hcie-watercolor-brushes",
  "iced",
  "iced-panel-adapter",
@@ -2770,6 +2788,13 @@ dependencies = [
  "zip",
 ]
 
+[[package]]
+name = "hcie-ink-brushes"
+version = "0.1.0"
+dependencies = [
+ "hcie-engine-api",
+]
+
 [[package]]
 name = "hcie-io"
 version = "0.1.0"
@@ -2829,6 +2854,13 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "hcie-paint-brushes"
+version = "0.1.0"
+dependencies = [
+ "hcie-engine-api",
+]
+
 [[package]]
 name = "hcie-protocol"
 version = "0.1.0"