fix(wardley): Allow integer coordinates in annotations

Extended WARDLEY_NUMBER terminal to match both decimals (0.5) and
integers (1, 100) to support annotations syntax like [1, 0].

The previous regex /[0-9]+\.[0-9]+/ only matched decimals, causing
parsing errors for integer coordinates in the annotations statement.

Changed to: /[0-9]+\.[0-9]+|[0-9]+/

Fixes GPT Tokeniser test which uses `annotations [1, 0]`

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: tractorjuice

packages/parser/src/language/wardley/wardley.langium

@@ -104,10 +104,10 @@ Deaccelerator:
     KW_DEACCELERATOR name=(STRING | ID | NAME_WITH_SPACES) '[' x=WARDLEY_NUMBER ',' y=WARDLEY_NUMBER ']' EOL
 ;
 
-// Define decimal number terminal for coordinates
-// This ONLY matches decimals like 0.5, not integers
-// For integers, use INT from common.langium
-terminal WARDLEY_NUMBER returns number: /[0-9]+\.[0-9]+/;
+// Define number terminal for coordinates
+// Matches both decimals (0.5) and integers (1, 100)
+// Must be defined BEFORE INT to match decimals with higher priority
+terminal WARDLEY_NUMBER returns number: /[0-9]+\.[0-9]+|[0-9]+/;
 
 terminal ARROW: '->';
 terminal LINK_PORT: '+<>' | '+>' | '+<';