feat: add disown command

nature/commands/disown.lua

@@ -0,0 +1,14 @@
+local commander = require 'commander'
+
+commander.register('disown', function(args)
+	local id = tonumber(args[1])
+	if not id then
+		print 'invalid id for job'
+		return 1
+	end
+
+	local ok = pcall(hilbish.jobs.disown, id)
+	if not ok then
+		print 'job does not exist'
+	end
+end)

nature/commands/init.lua

@@ -4,3 +4,4 @@ require 'nature.commands.cdr'
 require 'nature.commands.doc'
 require 'nature.commands.exit'
 require 'nature.commands.guide'
+require 'nature.commands.disown'