feat: publish Dever core with project scaffolding and versioned AI skills

.trellis/tasks/09-28-shared-toolchain/task.json

@@ -0,0 +1,26 @@
+{
+  "id": "shared-toolchain",
+  "name": "shared-toolchain",
+  "title": "Dever 本机共享工具链",
+  "description": "让一台机器上的所有用户和项目通过一个全局 dever 命令共享版本化工具链，并自动完成版本选择、更新与安全缓存",
+  "status": "in_progress",
+  "dev_type": null,
+  "scope": null,
+  "package": null,
+  "priority": "P2",
+  "creator": "Antigravity",
+  "assignee": "Antigravity",
+  "createdAt": "2026-09-28",
+  "completedAt": null,
+  "branch": "main",
+  "base_branch": "main",
+  "worktree_path": null,
+  "commit": null,
+  "pr_url": null,
+  "subtasks": [],
+  "children": [],
+  "parent": "09-06-private-compiler-distribution",
+  "relatedFiles": [],
+  "notes": "",
+  "meta": {}
+}