fix: add package repository metadata

Author: TDanks2000

package.json

@@ -2,6 +2,10 @@
 	"name": "@api-wrappers/api-core",
 	"version": "0.0.2",
 	"description": "Shared HTTP client runtime for the api-wrappers organisation. Provides request orchestration, a plugin lifecycle, transport abstraction, and built-in cache/retry/logger plugins.",
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/Api-Wrappers/api-core"
+	},
 	"type": "module",
 	"main": "./dist/index.cjs",
 	"module": "./dist/index.mjs",