chore: publish v0.4.2 — fix workspace deps, remove publish.sh

- workspace:* → workspace:^ (resolves to ^x.y.z instead of exact)
- Remove publish.sh, use changesets workflow
- changeset config: access public (Gitea compat)
- release script: build + test + changeset publish

packages/workflow-agent-cursor/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@uncaged/workflow-agent-cursor",
-  "version": "0.4.1",
+  "version": "0.4.2",
   "files": [
     "dist",
     "package.json"
@@ -11,11 +11,11 @@
     "test": "bun test"
   },
   "dependencies": {
-    "@uncaged/workflow-protocol": "workspace:*",
-    "@uncaged/workflow-reactor": "workspace:*",
-    "@uncaged/workflow-runtime": "workspace:*",
-    "@uncaged/workflow-util": "workspace:*",
-    "@uncaged/workflow-util-agent": "workspace:*",
+    "@uncaged/workflow-protocol": "workspace:^",
+    "@uncaged/workflow-reactor": "workspace:^",
+    "@uncaged/workflow-runtime": "workspace:^",
+    "@uncaged/workflow-util": "workspace:^",
+    "@uncaged/workflow-util-agent": "workspace:^",
     "zod": "^4.0.0"
   },
   "exports": {