fix embeding issue and sqlite db new database string

internal/handlers/renderer.go

@@ -4,9 +4,11 @@ import (
 	"bytes"
 	"fmt"
 	"html/template"
+	"io/fs"
 	"log"
 	"net/http"
-	"path/filepath"
+
+	"github.com/ghostersk/gowebmail"
 )
 
 // Renderer holds one compiled *template.Template per page name.
@@ -16,11 +18,6 @@ type Renderer struct {
 	templates map[string]*template.Template
 }
 
-const (
-	tmplBase = "web/templates/base.html"
-	tmplDir  = "web/templates"
-)
-
 // NewRenderer parses every page template paired with the base layout.
 // Call once at startup; fails fast if any template has a syntax error.
 func NewRenderer() (*Renderer, error) {
@@ -30,19 +27,23 @@ func NewRenderer() (*Renderer, error) {
 		"mfa.html",
 		"admin.html",
 	}
+	templateFS, err := fs.Sub(gowebmail.WebFS, "web/templates")
+	if err != nil {
+		log.Fatalf("embed templates fs: %v", err)
+	}
 
 	r := &Renderer{templates: make(map[string]*template.Template, len(pages))}
 
 	for _, page := range pages {
-		pagePath := filepath.Join(tmplDir, page)
 		// New instance per page — base FIRST, then the page file.
 		// This means the page's {{define}} blocks override the base's {{block}} defaults
 		// without any other page's definitions being present in the same pool.
-		t, err := template.New("base").ParseFiles(tmplBase, pagePath)
+		t, err := template.ParseFS(templateFS, "base.html", page)
 		if err != nil {
 			return nil, fmt.Errorf("renderer: parse %s: %w", page, err)
 		}
-		name := page[:len(page)-5] // strip ".html"
+
+		name := page[:len(page)-5]
 		r.templates[name] = t
 		log.Printf("renderer: loaded template %q", name)
 	}