修复: workspace_root 编译期常量消除+data_dir 运行期+首次授权引导

- 删除 production 中全部 env!("CARGO_MANIFEST_DIR")引用
- workspace_root() 替换为运行期 data_dir(Tauri app_data_dir)
- 相对路径锚定改为 AllowedDirs.first_persistent_dir()，无授权时引导绑定项目
- .trash 迁到 data_dir/.trash，含自动迁移
- authz_debug → temp_dir，workspace_drive → current_dir
- run_command 默认 working_dir 改为空串
- G1 目标刷新改为每次消息覆盖(含 ai_chat_edit 路径)
- #6 评分关键词拆到独立文件 scoring_keywords.rs
- #7 promote 补偿删除 purge_with_descendants → soft_delete
- #8 关联双向同步: 后端事务 sync_related_ids + IPC + 前端全链路
- 设置面板新增数据目录显示

crates/df-storage/src/crud/idea_repo.rs

@@ -73,6 +73,17 @@ fn cosine_similarity(a: &[f32], b: &[f32]) -> f32 {
     dot / (norm_a * norm_b + 1e-8)
 }
 
+/// 解析 JSON 数组字符串为 Vec<String>。NULL / 空 / 非法 → 空 Vec。
+fn parse_json_id_array(raw: &Option<String>) -> Vec<String> {
+    match raw {
+        Some(s) if !s.is_empty() => match serde_json::from_str::<Vec<String>>(s) {
+            Ok(v) => v,
+            Err(_) => Vec::new(),
+        },
+        _ => Vec::new(),
+    }
+}
+
 // ============================================================
 // from_row 辅助函数
 // ============================================================
@@ -385,6 +396,120 @@ impl IdeaRepo {
         .map_err(storage_err)?
     }
 
+    /// 双向同步关联关系:原子地更新主体灵感及其所有关联目标的 `related_ids`。
+    ///
+    /// `subject_id` 的 `related_ids` 被设为 `new_target_ids`(全量替换);
+    /// 新增的关联目标追加 `subject_id` 到其 `related_ids`;
+    /// 移除的关联目标从中删除 `subject_id`。
+    /// 全部操作在同一 SQLite 事务中完成,保证原子性。
+    pub async fn sync_related_ids(
+        &self,
+        subject_id: &str,
+        new_target_ids: &[String],
+    ) -> Result<()> {
+        use rusqlite::Transaction;
+        let conn = self.conn.clone();
+        let subject_id = subject_id.to_owned();
+        let new_target_ids = new_target_ids.to_vec();
+        let now = now_millis_str();
+        tokio::task::spawn_blocking(move || {
+            let mut guard = conn.blocking_lock();
+            let tx: Transaction = guard
+                .transaction()
+                .map_err(storage_err)?;
+
+            // 1. 读主体当前 related_ids
+            let old_raw: Option<String> = tx
+                .query_row(
+                    "SELECT related_ids FROM ideas WHERE id = ?1",
+                    params![subject_id],
+                    |row| row.get(0),
+                )
+                .optional()
+                .map_err(storage_err)?
+                .flatten();
+
+            // 2. 解析新旧集合
+            let old_set: std::collections::HashSet<String> =
+                parse_json_id_array(&old_raw).into_iter().collect();
+            let new_set: std::collections::HashSet<String> =
+                new_target_ids.iter().cloned().collect();
+
+            let added: Vec<&str> = new_set
+                .difference(&old_set)
+                .map(|s| s.as_str())
+                .filter(|id| *id != subject_id) // 不自关联
+                .collect();
+            let removed: Vec<&str> = old_set
+                .difference(&new_set)
+                .map(|s| s.as_str())
+                .filter(|id| *id != subject_id)
+                .collect();
+
+            // 3. 更新 added 目标:追加 subject_id
+            for target_id in &added {
+                let cur: Option<String> = tx
+                    .query_row(
+                        "SELECT related_ids FROM ideas WHERE id = ?1",
+                        params![target_id],
+                        |row| row.get(0),
+                    )
+                    .optional()
+                    .map_err(storage_err)?
+                    .flatten();
+                let mut ids: Vec<String> = parse_json_id_array(&cur);
+                if !ids.iter().any(|i| i == &subject_id) {
+                    ids.push(subject_id.clone());
+                }
+                let json = serde_json::to_string(&ids).map_err(|e| {
+                    storage_err::<df_types::error::Error>(e.into())
+                })?;
+                tx.execute(
+                    "UPDATE ideas SET related_ids = ?1, updated_at = ?2 WHERE id = ?3",
+                    params![json, &now, target_id],
+                )
+                .map_err(storage_err)?;
+            }
+
+            // 4. 更新 removed 目标:移除 subject_id
+            for target_id in &removed {
+                let cur: Option<String> = tx
+                    .query_row(
+                        "SELECT related_ids FROM ideas WHERE id = ?1",
+                        params![target_id],
+                        |row| row.get(0),
+                    )
+                    .optional()
+                    .map_err(storage_err)?
+                    .flatten();
+                let mut ids: Vec<String> = parse_json_id_array(&cur);
+                ids.retain(|i| i != &subject_id);
+                let json = serde_json::to_string(&ids).map_err(|e| {
+                    storage_err::<df_types::error::Error>(e.into())
+                })?;
+                tx.execute(
+                    "UPDATE ideas SET related_ids = ?1, updated_at = ?2 WHERE id = ?3",
+                    params![json, &now, target_id],
+                )
+                .map_err(storage_err)?;
+            }
+
+            // 5. 更新主体
+            let new_json = serde_json::to_string(&new_target_ids)
+                .map_err(|e| storage_err::<df_types::error::Error>(e.into()))?;
+            tx.execute(
+                "UPDATE ideas SET related_ids = ?1, updated_at = ?2 WHERE id = ?3",
+                params![new_json, &now, &subject_id],
+            )
+            .map_err(storage_err)?;
+
+            tx.commit().map_err(storage_err)?;
+            Ok(())
+        })
+        .await
+        .map_err(storage_err)?
+    }
+
     /// 列出回收站(deleted_at IS NOT NULL),按更新时间(≈删除时间)降序。
     /// 对标 TaskRepo::list_deleted / ProjectRepo::list_deleted。
     pub async fn list_deleted(&self) -> Result<Vec<IdeaRecord>> {