Refactor configuration and update handling:

- Modify .luarc.json to include global Lua scripts.
- Update Makefile to include LDFLAGS for versioning.
- Enhance node.go to implement version checking and update handling.
- Refactor Lua global variables in _globals.lua and echo.lua to use new structures.
- Remove deprecated http.lua and update config.yaml for TLS and update settings.
- Introduce new update.go for version management and update checking.
- Add tests for version comparison in update_test.go.
- Improve error handling in various server methods.

config.yaml

@@ -1,7 +1,7 @@
 mode: "dev"
 
 http_server:
-  address: "localhost:8080"
+  address: "0.0.0.0:8080"
   timeout: 3s
   idle_timeout: 30s
   api:
@@ -11,8 +11,22 @@ http_server:
       - s2
 
 tls:
-  enabled: "true"
-  cert_file: "./cert/server.crt"
-  key_file: "./cert/server.key"
+  enabled: true
+  cert_file: "./cert/fullchain.pem"
+  key_file: "./cert/privkey.pem"
 
-com_dir: "com/"
+internal:
+  meta-dir: "./.meta/"
+
+com_dir: "com/"
+
+
+updates:
+  enabled: true
+  allow-auto-updates: true
+  allow-updates: true
+  allow-downgrades: false
+
+  check-interval: 1h
+  repository_url: "https://repo.serve.lv/raw/go-sally"
+  wanted-version: "latest-stable"