Add hosted Gitea release delivery

releasekit.json

@@ -2,6 +2,7 @@
   "product": "Promptkit",
   "remote": "origin",
   "validation": {
+    "forbidden_files": [".releasekit/gitea-token"],
     "go": {
       "race": true,
       "full_vet": true
@@ -13,6 +14,13 @@
       "local_replacements": true
     }
   },
+  "delivery": {
+    "forge": "gitea",
+    "base_url": "https://forge.maximumdirect.net",
+    "owner": "base-layer",
+    "repository": "promptkit",
+    "token_file": ".releasekit/gitea-token"
+  },
   "checks": [
     {
       "args": ["python3", "./scripts/check-examples.py"],