adds # and @ to allowable keyword characters

spec/ant_spec.lua

@@ -146,10 +146,10 @@ describe("Arweave Name Token", function()
 
 	-- Test when keywords contain invalid characters
 	it("throws an error if keywords contain invalid characters", function()
-		local keywordsWithSpecialChars = { "valid", "inva@lid" } -- Contains special character '@'
+		local keywordsWithSpecialChars = { "valid", "inva!lid" } -- Contains special character '!'
 		assert.has_error(function()
 			balances.setKeywords(keywordsWithSpecialChars)
-		end, "Keywords must only contain alphanumeric characters, dashes, or underscores")
+		end, "Keywords must only contain alphanumeric characters, dashes, underscores, #, or @")
 	end)
 
 	-- Test when any keyword is duplicated

src/common/balances.lua

@@ -54,8 +54,10 @@ function balances.setKeywords(keywords)
 		assert(type(keyword) == "string", "Each keyword must be a string")
 		assert(#keyword <= 32, "Each keyword must not be longer than 32 characters")
 		assert(not keyword:find("%s"), "Keywords must not contain spaces")
-		assert(keyword:match("^[%w-_]+$"), "Keywords must only contain alphanumeric characters, dashes, or underscores")
-
+		assert(
+			keyword:match("^[%w-_#@]+$"),
+			"Keywords must only contain alphanumeric characters, dashes, underscores, #, or @"
+		)
 		-- Check for duplicates
 		assert(not seenKeywords[keyword], "Duplicate keyword detected: " .. keyword)
 		seenKeywords[keyword] = true