chore(tooling): Improve CI pipeline and expand pre-commit hooks

Expands the pre-commit configuration with a wider range of hooks to enforce file quality, validation, security, and Git safety checks.

The CI pipeline is updated to:
- Correct the `golangci-lint` format command to `fmt`.
- Enable CGO for test execution to support the race detector.
- Improve the robustness of test report parsing scripts.

Additionally, this commit includes minor stylistic and formatting cleanups across various project files.

internal/exporters/html.go

@@ -15,7 +15,7 @@ import (
 //go:embed html_styles.css
 var defaultCSS string
 
-//go:embed html_template.html
+//go:embed html_template.gohtml
 var htmlTemplate string
 
 // HTMLExporter implements the Exporter interface for HTML format.

internal/exporters/output.md

@@ -4,9 +4,8 @@ Course description
 
 ## Course Information
 
-- **Course ID**: 
+- **Course ID**:
 - **Share ID**: example-id
-- **Navigation Mode**: 
+- **Navigation Mode**:
 
 ---
-