修复: 前端 TS 阻断 + G1/G2 单测 + 归档已完成项

- 修复 vue-tsc 3 阻断: i18n 重复 err key 删除 + store 补 relateIdeas
- G1: extract_pinned_goal 单测 10 条(mention剥离/截断/空输入/全角冒号)
- G2: is_empty_tool_result 单测 11 条(JSON标记/中文/英文/非空判定)
- 归档: todo.md/docs/todo.md/待决策.md/待审查.md 已完成项迁入归档

src-tauri/src/commands/ai/agentic/mod.rs

@@ -2097,3 +2097,67 @@ struct ContinueSnapshot {
     agent_language: Option<String>,
     model_override: Option<String>,
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    // ============================================================
+    // G2 is_empty_tool_result 单测
+    // ============================================================
+
+    #[test]
+    fn test_empty_tool_result_empty_string() {
+        assert!(is_empty_tool_result(""));
+    }
+
+    #[test]
+    fn test_empty_tool_result_whitespace() {
+        assert!(is_empty_tool_result("   "));
+    }
+
+    #[test]
+    fn test_empty_tool_result_total_zero() {
+        assert!(is_empty_tool_result(r#"{"total":0}"#));
+    }
+
+    #[test]
+    fn test_empty_tool_result_entries_empty() {
+        assert!(is_empty_tool_result(r#"{"entries":[]}"#));
+    }
+
+    #[test]
+    fn test_empty_tool_result_matches_empty() {
+        assert!(is_empty_tool_result(r#"{"matches":[]}"#));
+    }
+
+    #[test]
+    fn test_empty_tool_result_results_empty() {
+        assert!(is_empty_tool_result(r#"{"results":[]}"#));
+    }
+
+    #[test]
+    fn test_empty_tool_result_files_empty() {
+        assert!(is_empty_tool_result(r#"{"files":[]}"#));
+    }
+
+    #[test]
+    fn test_empty_tool_result_chinese_no_match() {
+        assert!(is_empty_tool_result("未找到相关文件"));
+    }
+
+    #[test]
+    fn test_empty_tool_result_english_no_match() {
+        assert!(is_empty_tool_result("No matches found"));
+    }
+
+    #[test]
+    fn test_non_empty_tool_result() {
+        assert!(!is_empty_tool_result(r#"{"total":5}"#));
+    }
+
+    #[test]
+    fn test_non_empty_tool_result_with_content() {
+        assert!(!is_empty_tool_result(r#"{"entries":["a.txt","b.txt"]}"#));
+    }
+}