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, 2 insertions, 0 deletions

diff --git a/go.mod b/go.mod
index 4c2f56c..37fa535 100644
--- a/go.mod
+++ b/go.mod
@@ -3,3 +3,5 @@ module codeberg.org/mihna123/openstore
 go 1.25.0
 
 require golang.org/x/crypto v0.55.0
+
+require gopkg.in/ini.v1 v1.67.3