新增: F-260619-01 任务可关联灵感(tasks.idea_id 1对1 单向)

- df-storage V20 迁移:tasks 加 idea_id TEXT REFERENCES ideas(id)(填预留空位,
  幂等 column_exists 探测)+ V9_SQL 同步 + TaskRecord.idea_id + task_repo SQL/SELECT + 白名单
- AI 工具 create_task 加 idea_id 参数;update_task 经白名单自动支持
- IPC commands/task.rs CreateTaskInput 加 idea_id
- 前端 types TaskRecord/CreateTaskInput idea_id + TaskDetail.vue 关联灵感展示
  (router-link 友好 title 非裸 id)+ i18n
- 补 idea_id 字段:df-mcp tools / df-nodes 测试 helper
- 单向 1对1,Option 可空,复用 projects.idea_id 模式,老任务 None 兼容

自验: df-storage 47 passed(含 V20 2)+ workspace EXIT 0 + vue-tsc EXIT 0

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

@@ -142,6 +142,9 @@ pub fn allowed_columns_for(table: &str) -> Option<&'static [&'static str]> {
             // output_json:ai_execute 写产出 / ai_self_review 读产出自审 / human_review 展示对象
             // (决策 a:task 中心,产出跟 task 走)。非状态机收口字段,合法可写。
             "output_json",
+            // idea_id(F-260619-01 任务关联灵感,1对1 单向):任务可关联/解关联一条灵感,
+            // 非状态机收口字段,合法可写(idea_id 存在性由外键约束 + 上层校验兜底)。
+            "idea_id",
             "updated_at",
             // TODO(B-260616-16): project_id 跨表存在性校验待 commands/task.rs 层补。
             //   通用 CRUD 层(db repo)只懂表/列语义,不持有跨表业务约束(查 projects 表存在性)。

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

@@ -31,6 +31,7 @@ fn task_from_row(row: &Row<'_>) -> std::result::Result<TaskRecord, rusqlite::Err
         base_branch: row.get("base_branch")?,
         review_rounds: row.get("review_rounds")?,
         output_json: row.get("output_json")?,
+        idea_id: row.get("idea_id")?,
         created_at: row.get("created_at")?,
         updated_at: row.get("updated_at")?,
     })
@@ -48,22 +49,22 @@ impl_repo!(
     from_row => |row| task_from_row(row),
     insert  => |conn, rec| {
         conn.execute(
-            "INSERT INTO tasks (id, project_id, title, description, status, priority, branch_name, assignee, workflow_def_id, base_branch, review_rounds, output_json, created_at, updated_at)
-             VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12, ?13, ?14)",
+            "INSERT INTO tasks (id, project_id, title, description, status, priority, branch_name, assignee, workflow_def_id, base_branch, review_rounds, output_json, idea_id, created_at, updated_at)
+             VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12, ?13, ?14, ?15)",
             params![
                 rec.id, rec.project_id, rec.title, rec.description, rec.status, rec.priority,
                 rec.branch_name, rec.assignee, rec.workflow_def_id, rec.base_branch,
-                rec.review_rounds, rec.output_json, rec.created_at, rec.updated_at
+                rec.review_rounds, rec.output_json, rec.idea_id, rec.created_at, rec.updated_at
             ],
         )
     },
     update  => |conn, rec| {
         conn.execute(
-            "UPDATE tasks SET project_id = ?1, title = ?2, description = ?3, status = ?4, priority = ?5, branch_name = ?6, assignee = ?7, workflow_def_id = ?8, base_branch = ?9, review_rounds = ?10, output_json = ?11, updated_at = ?12 WHERE id = ?13",
+            "UPDATE tasks SET project_id = ?1, title = ?2, description = ?3, status = ?4, priority = ?5, branch_name = ?6, assignee = ?7, workflow_def_id = ?8, base_branch = ?9, review_rounds = ?10, output_json = ?11, idea_id = ?12, updated_at = ?13 WHERE id = ?14",
             params![
                 rec.project_id, rec.title, rec.description, rec.status, rec.priority,
                 rec.branch_name, rec.assignee, rec.workflow_def_id, rec.base_branch,
-                rec.review_rounds, rec.output_json, rec.updated_at, rec.id
+                rec.review_rounds, rec.output_json, rec.idea_id, rec.updated_at, rec.id
             ],
         )
     }
@@ -79,7 +80,7 @@ impl TaskRepo {
         tokio::task::spawn_blocking(move || {
             let guard = conn.blocking_lock();
             let mut stmt = guard
-                .prepare("SELECT id, project_id, title, description, status, priority, branch_name, assignee, workflow_def_id, base_branch, review_rounds, output_json, created_at, updated_at FROM tasks WHERE deleted_at IS NULL ORDER BY created_at DESC")
+                .prepare("SELECT id, project_id, title, description, status, priority, branch_name, assignee, workflow_def_id, base_branch, review_rounds, output_json, idea_id, created_at, updated_at FROM tasks WHERE deleted_at IS NULL ORDER BY created_at DESC")
                 .map_err(storage_err)?;
             let rows = stmt
                 .query_map([], |row| task_from_row(row))
@@ -180,7 +181,7 @@ impl TaskRepo {
             }
             // 回读更新后的记录(含新 status / 累加后的 review_rounds / 新 updated_at)。
             let mut stmt = guard
-                .prepare("SELECT id, project_id, title, description, status, priority, branch_name, assignee, workflow_def_id, base_branch, review_rounds, output_json, created_at, updated_at FROM tasks WHERE id = ?1")
+                .prepare("SELECT id, project_id, title, description, status, priority, branch_name, assignee, workflow_def_id, base_branch, review_rounds, output_json, idea_id, created_at, updated_at FROM tasks WHERE id = ?1")
                 .map_err(storage_err)?;
             let row = stmt
                 .query_row(params![id], |row| task_from_row(row))
@@ -201,7 +202,7 @@ impl TaskRepo {
         tokio::task::spawn_blocking(move || {
             let guard = conn.blocking_lock();
             let mut stmt = guard
-                .prepare("SELECT id, project_id, title, description, status, priority, branch_name, assignee, workflow_def_id, base_branch, review_rounds, output_json, created_at, updated_at FROM tasks WHERE deleted_at IS NOT NULL ORDER BY updated_at DESC")
+                .prepare("SELECT id, project_id, title, description, status, priority, branch_name, assignee, workflow_def_id, base_branch, review_rounds, output_json, idea_id, created_at, updated_at FROM tasks WHERE deleted_at IS NOT NULL ORDER BY updated_at DESC")
                 .map_err(storage_err)?;
             let rows = stmt
                 .query_map([], |row| task_from_row(row))