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-ai-agent/src/shared_kernel/approval.rs

@@ -0,0 +1,26 @@
+//! Approval-memory key construction shared across agent managers.
+//!
+//! Keeps the `always_allow` memory key format identical between agents
+//! so the session-level approval cache stays source-of-truth-unique.
+
+/// Build the approval memory key from action and optional command_type.
+pub fn approval_key(action: Option<&str>, command_type: Option<&str>) -> String {
+    match (action, command_type) {
+        (Some(a), Some(ct)) => format!("{a}:{ct}"),
+        (Some(a), None) => a.to_owned(),
+        _ => String::new(),
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn approval_key_formats_matches_previous_contract() {
+        assert_eq!(approval_key(Some("exec"), Some("curl")), "exec:curl");
+        assert_eq!(approval_key(Some("exec"), None), "exec");
+        assert_eq!(approval_key(None, Some("curl")), "");
+        assert_eq!(approval_key(None, None), "");
+    }
+}