新增: 工程依赖图数据层 + 依赖边渲染 + 小地图

- 后端 module_dependencies 表(V35 迁移)+ ModuleDependencyRepo CRUD
- IPC:add/remove/list_module_dependencies
- 前端 API 封装 + DependencyGraph 接入真实边数据
- 依赖类型颜色区分(library/api/mq/shared/custom)
- 小地图插件(MiniMap)大图概览导航
- 点击节点跳转项目详情
- 任务列表后端真分页 count_by_query 方法

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

@@ -28,6 +28,7 @@ mod project_service_repo;
 mod settings;
 mod task_link_repo;
 mod task_repo;
+mod module_dependency_repo;
 
 pub use conversation_repo::*;
 pub use idea_eval_repo::*;
@@ -40,6 +41,7 @@ pub use project_service_repo::*;
 pub use settings::*;
 pub use task_link_repo::*;
 pub use task_repo::*;
+pub use module_dependency_repo::*;
 
 // ============================================================
 // 辅助宏 — 消除多个 Repo 的重复样板

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

@@ -0,0 +1,95 @@
+//! 工程依赖关系 — module_dependencies 表 CRUD(V35,工程间依赖边)
+//!
+//! 简化版:insert / delete / list_by_field(查 project_id)。
+
+use std::sync::Arc;
+
+use rusqlite::{params, OptionalExtension, Row};
+use tokio::sync::Mutex;
+
+use crate::db::Database;
+use crate::models::ModuleDependencyRecord;
+
+use super::{storage_err};
+
+fn dep_from_row(row: &Row<'_>) -> std::result::Result<ModuleDependencyRecord, rusqlite::Error> {
+    Ok(ModuleDependencyRecord {
+        id: row.get("id")?,
+        project_id: row.get("project_id")?,
+        from_module_id: row.get("from_module_id")?,
+        to_module_id: row.get("to_module_id")?,
+        dep_type: row.get("dep_type")?,
+        label: row.get("label")?,
+        created_at: row.get("created_at")?,
+    })
+}
+
+pub struct ModuleDependencyRepo {
+    conn: Arc<Mutex<rusqlite::Connection>>,
+}
+
+impl ModuleDependencyRepo {
+    pub fn new(db: &Database) -> Self {
+        Self { conn: db.conn() }
+    }
+
+    pub async fn insert(&self, record: ModuleDependencyRecord) -> Result<bool, df_types::error::Error> {
+        let conn = self.conn.clone();
+        tokio::task::spawn_blocking(move || {
+            let guard = conn.blocking_lock();
+            let r = &record;
+            let affected = guard
+                .execute(
+                    "INSERT INTO module_dependencies \
+                     (id, project_id, from_module_id, to_module_id, dep_type, label, created_at) \
+                     VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7)",
+                    params![
+                        r.id, r.project_id, r.from_module_id, r.to_module_id,
+                        r.dep_type, r.label, r.created_at,
+                    ],
+                )
+                .map_err(storage_err)?;
+            Ok(affected > 0)
+        })
+        .await
+        .map_err(storage_err)?
+    }
+
+    pub async fn delete(&self, id: &str) -> Result<bool, df_types::error::Error> {
+        let conn = self.conn.clone();
+        let id = id.to_owned();
+        tokio::task::spawn_blocking(move || {
+            let guard = conn.blocking_lock();
+            let affected = guard
+                .execute("DELETE FROM module_dependencies WHERE id = ?1", params![id])
+                .map_err(storage_err)?;
+            Ok(affected > 0)
+        })
+        .await
+        .map_err(storage_err)?
+    }
+
+    pub async fn list_by_field(&self, field: &str, value: &str) -> Result<Vec<ModuleDependencyRecord>, df_types::error::Error> {
+        let conn = self.conn.clone();
+        let field = field.to_owned();
+        let value = value.to_owned();
+        tokio::task::spawn_blocking(move || {
+            let guard = conn.blocking_lock();
+            let sql = format!(
+                "SELECT id, project_id, from_module_id, to_module_id, dep_type, label, created_at \
+                 FROM module_dependencies WHERE {field} = ?1 ORDER BY created_at ASC"
+            );
+            let mut stmt = guard.prepare(&sql).map_err(storage_err)?;
+            let rows = stmt
+                .query_map(params![value], dep_from_row)
+                .map_err(storage_err)?;
+            let mut results = Vec::new();
+            for r in rows {
+                results.push(r.map_err(storage_err)?);
+            }
+            Ok(results)
+        })
+        .await
+        .map_err(storage_err)?
+    }
+}