feat: Add documentation generation and serve functionality

- Implement documentation generation
- Replace chi router with gin for documentation server
- Fix issues with docs command execution

router/controller/controller.go

@@ -2,7 +2,8 @@ package controller
 
 import (
 	"github.com/gin-gonic/gin"
-	"github.com/go-andiamo/chioas"
+	"github.com/swaggest/openapi-go"
+	"github.com/swaggest/openapi-go/openapi3"
 )
 
 // SecuredController - means, controller has middlewares
@@ -12,7 +13,7 @@ type SecuredController interface {
 }
 
 type DocumentateController interface {
-	Documentate() (*chioas.Paths, *chioas.Components)
+	Documentate(r *openapi3.Reflector) openapi.OperationContext
 }
 
 type Controller interface {