Update: 将子项目从 submodule 转为完整内容

- 移除 GovAI, nomifun-tauri, 算力盒子 的 submodule 引用
- 添加所有子项目的完整源代码
- 保留原始 .git 为 .git.bak 备份

nomifun-tauri/crates/backend/nomifun-cron/Cargo.toml

@@ -0,0 +1,32 @@
+[package]
+name = "nomifun-cron"
+version.workspace = true
+edition.workspace = true
+
+[dependencies]
+nomifun-common.workspace = true
+nomifun-db.workspace = true
+nomifun-api-types.workspace = true
+nomifun-realtime.workspace = true
+nomifun-conversation.workspace = true
+nomifun-ai-agent.workspace = true
+nomifun-auth.workspace = true
+axum.workspace = true
+cron.workspace = true
+chrono.workspace = true
+chrono-tz.workspace = true
+tokio.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+thiserror.workspace = true
+tracing.workspace = true
+dashmap.workspace = true
+async-trait.workspace = true
+base64.workspace = true
+
+[dev-dependencies]
+tokio = { workspace = true, features = ["test-util"] }
+tempfile.workspace = true
+# Enable the `AgentInstance::Mock` variant so tests can build fake agents
+# through the trait-object escape hatch without spawning real CLI processes.
+nomifun-ai-agent = { workspace = true, features = ["test-support"] }