refactor(commands): separate commands and its core into two folders (#32)

- I think it would be better if one for commands only, one for the spec
handling core logic so people won't be confused by the core logic inside
the commands folder (cleaner I guess)
- Regen docs

commands/sys/ollama.go

@@ -1,14 +1,14 @@
 package sys
 
 import (
-	"github.com/versenilvis/iris/commands/core"
+	"github.com/versenilvis/iris/spec"
 )
 
 func init() {
-	core.Register(&core.Spec{
+	spec.Register(&spec.Spec{
 		Name:        "ollama",
 		Description: "A command-line tool for managing and deploying machine learning models",
-		Subcommands: []core.Subcommand{
+		Subcommands: []spec.Subcommand{
 			{Name: "serve", Description: "Start ollama"},
 			{Name: "create", Description: "Create a model from a Modelfile"},
 			{Name: "show", Description: "Show information for a model"},
@@ -22,7 +22,7 @@ func init() {
 			{Name: "rm", Description: "Remove a model"},
 			{Name: "help", Description: "Help about any command"},
 		},
-		Options: []core.Option{
+		Options: []spec.Option{
 			{Name: "-f", Description: "Specify Modelfile"},
 			{Name: "--verbose", Description: "Enable verbose output"},
 			{Name: "--help", Description: "Show help for ollama"},