config: add config package and wire it into server and handlers

Replace the hardcoded server.Config with an ini-backed config package
that reads /etc/openstore/openstore.conf then the user's config file, so
user settings override system ones and both override the built-in
defaults. Missing files are ignored rather than fatal.

Move route registration into a handlers package that owns the templates
and builds a Page view model, which removes the server -> handlers
import cycle along with the setter-based context injection.

1 files changed, 20 insertions, 2 deletions

diff --git a/internal/server/server_test.go b/internal/server/server_test.go
index 7e6a748..aea434f 100644
--- a/internal/server/server_test.go
+++ b/internal/server/server_test.go
@@ -7,6 +7,8 @@ import (
 	"os"
 	"strings"
 	"testing"
+
+	"codeberg.org/mihna123/openstore/internal/config"
 )
 
 func TestMain(m *testing.M) {
@@ -14,9 +16,23 @@ func TestMain(m *testing.M) {
 	os.Exit(m.Run())
 }
 
+func newTestConfig(t *testing.T) *config.Config {
+	t.Helper()
+	return &config.Config{
+		Serve: config.Serve{
+			Addr: ":3000",
+		},
+		Instance: config.Instance{
+			Name:         "TestStore",
+			ContactEmail: "test@email.com",
+			BaseURL:      "https://example.com",
+		},
+	}
+}
+
 func newTestServer(t *testing.T) *Server {
 	t.Helper()
-	return New(&Config{Name: "test"})
+	return New(newTestConfig(t))
 }
 
 func TestRoutes(t *testing.T) {
@@ -47,7 +63,9 @@ func TestRoutes(t *testing.T) {
 }
 
 func TestIndexRendersTemplate(t *testing.T) {
-	s := New(&Config{Name: "testname123"})
+	cfg := newTestConfig(t)
+	cfg.Instance.Name = "testname123"
+	s := New(cfg)
 
 	rec := httptest.NewRecorder()
 	s.mux.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/", nil))