feat(tests): add comprehensive test suite, update deps and Go 1.26.1

- Add 20+ tests for utility functions, SharedData, and Model
- Tests cover: LoadTables, LoadTableData, UpdateCell, pagination,
  table inference, focus/blur, empty database, invalid indices
- Update Go to 1.26.1, upgrade all dependencies
- Replace custom Min/Max with Go builtin min/max
- Format all files with goimports
- Add staticcheck to CI workflow

internal/app/row_detail.go

@@ -4,9 +4,9 @@ import (
 	"fmt"
 	"strings"
 
-	tea "github.com/charmbracelet/bubbletea"
 	"github.com/charmbracelet/bubbles/help"
 	"github.com/charmbracelet/bubbles/key"
+	tea "github.com/charmbracelet/bubbletea"
 )
 
 type RowDetailModel struct {
@@ -171,7 +171,7 @@ func (m *RowDetailModel) View() string {
 		if availableWidth < 20 {
 			availableWidth = 20 // Minimum width
 		}
-		
+
 		if len(value) > availableWidth {
 			// Wrap long values
 			lines := WrapText(value, availableWidth)
@@ -195,4 +195,4 @@ func (m *RowDetailModel) View() string {
 	}
 
 	return content.String()
-}
+}