feat: Add CMD+K command palette with ninja-keys integration

Implement a command palette accessible via CMD+K/Ctrl+K using the ninja-keys
web component. Features include:

- New /api/cmd-k endpoint serving dynamic CV entries (experiences, projects, courses)
- Language-aware responses with 1-hour cache headers
- Scroll-to-section functionality for quick navigation
- Enhanced keyboard shortcuts modal with CMD+K documentation
- Comprehensive test coverage for API and UI interactions

Also includes cleanup of deprecated debug test files and various UI polish
improvements to contact form, themes, and action bar components.

internal/models/cv.go

@@ -45,6 +45,7 @@ type Personal struct {
 type Experience struct {
 	Position         string   `json:"position"`
 	Company          string   `json:"company"`
+	CompanyID        string   `json:"companyID,omitempty"` // Unique ID for scrolling/navigation
 	CompanyURL       string   `json:"companyURL,omitempty"` // Optional URL for company website
 	CompanyLogo      string   `json:"companyLogo"`
 	Location         string   `json:"location"`
@@ -91,6 +92,7 @@ type Project struct {
 	Title            string   `json:"title"`
 	ProjectName      string   `json:"projectName,omitempty"`      // Optional: linkable part of title
 	ProjectDesc      string   `json:"projectDesc,omitempty"`      // Optional: non-linkable description part
+	ProjectID        string   `json:"projectID,omitempty"`        // Unique ID for scrolling/navigation
 	URL              string   `json:"url"`
 	ProjectLogo      string   `json:"projectLogo,omitempty"`      // Optional logo filename
 	GitRepoUrl       string   `json:"gitRepoUrl,omitempty"`       // Optional git repository URL for dynamic dates
@@ -127,6 +129,7 @@ type Certification struct {
 type Course struct {
 	Title            string   `json:"title"`
 	Institution      string   `json:"institution"`
+	CourseID         string   `json:"courseID,omitempty"` // Unique ID for scrolling/navigation
 	CourseLogo       string   `json:"courseLogo,omitempty"` // Optional logo filename
 	Location         string   `json:"location"`
 	Date             string   `json:"date"`