Update Database

Database is more usable now.
All pages have been updated to use the database, and share an application configuration.
Page Stack has been removed, no more pages hanging around in memory. Replaced with a 'Router' which uses an Enum to determine which page should be displayed, destroys the old page and initializes the new page all in one go. No more push, pop, rollback, etc. No more holding instances of pages.
Logger has been updated with proper timestamps and sorting now works as expected."

internal/shaderManager/shaderManager.go

@@ -8,7 +8,6 @@ import (
 	"sync"
 
 	"github.com/go-gl/gl/v3.3-core/gl"
-	"rhemawavetech.com/rhemawave/internal/db"
 )
 
 // Shader represents a compiled GLSL program and its associated data.
@@ -35,14 +34,14 @@ var (
 )
 
 // InitShaderManager initializes the ShaderManager singleton.
-func InitShaderManager() error {
+func InitShaderManager(shaderDir string) error {
 	var err error
 	once.Do(func() {
 		sm := &ShaderManager{
 			shaders: make(map[string]*Shader),
 		}
-		if e := sm.LoadShaders(); e != nil {
-			err = fmt.Errorf("could not load shaders: %w", e)
+		if e := sm.LoadShaders(shaderDir); e != nil {
+			err = fmt.Errorf("could not load shaders from %s: %w", shaderDir, e)
 			return
 		}
 		instance = sm
@@ -78,17 +77,11 @@ func (sm *ShaderManager) Close() {
 }
 
 // LoadShaders scans a directory for .vert and .frag files and creates a shader program for each pair.
-func (sm *ShaderManager) LoadShaders() error {
+func (sm *ShaderManager) LoadShaders(shaderDir string) error {
 	// Get assets directory from database
-	assetsDir, err := db.GetConfigValue("assets_dir")
-	if err != nil {
-		return fmt.Errorf("retrieving assets_dir from db: %w", err)
-	}
-
-	srcDir := filepath.Join(assetsDir, "shaders")
 	shaderFiles := make(map[string]string)
 
-	err = filepath.Walk(srcDir, func(path string, info os.FileInfo, err error) error {
+	err := filepath.Walk(shaderDir, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}