fix: connect API to tracker.db via SQLite repository

packages/adapters/sqlite_tracker/__init__.py

@@ -0,0 +1,12 @@
+"""SQLite Tracker Adapter"""
+from .project_management_repositories import (
+    SQLiteTaskRepository,
+    SQLiteMilestoneRepository,
+    SQLiteTaskIssueRepository,
+)
+
+__all__ = [
+    "SQLiteTaskRepository",
+    "SQLiteMilestoneRepository",
+    "SQLiteTaskIssueRepository",
+]

packages/adapters/sqlite_tracker/project_management_repositories.py

@@ -0,0 +1,154 @@
+"""SQLite 实现的项目管理 Repository"""
+import sqlite3
+from typing import List, Optional
+from datetime import datetime
+from packages.domain.entities import Task, Milestone, TaskIssue
+from packages.domain import TaskStatus, TaskPriority
+
+DB_PATH = "tracker.db"
+
+class SQLiteTaskRepository:
+    """基于 SQLite 的任务仓储"""
+    
+    def get_by_id(self, task_id: str) -> Optional[Task]:
+        conn = sqlite3.connect(DB_PATH)
+        conn.row_factory = sqlite3.Row
+        cursor = conn.cursor()
+        
+        cursor.execute("SELECT * FROM tasks WHERE id = ?", (task_id,))
+        row = cursor.fetchone()
+        conn.close()
+        
+        if not row:
+            return None
+        
+        return Task(
+            id=str(row['id']),
+            name=row['name'],
+            description=row['description'] or "",
+            status=TaskStatus(row['status']) if row['status'] else TaskStatus.PENDING,
+            priority=TaskPriority(row['priority']) if row['priority'] else TaskPriority.MEDIUM,
+            progress=0,  # tracker.db 没有 progress 字段
+            project_id=row['phase'] or "xiaoxia-saas",
+            workspace_id="xiaoxia-workspace",
+            assignee_user_id=row['assigned_to'] or "",
+            created_at=datetime.fromisoformat(row['created_at']) if row['created_at'] else datetime.now(),
+            updated_at=datetime.now()
+        )
+    
+    def list_by_project(self, project_id: str, skip: int = 0, limit: int = 100) -> List[Task]:
+        conn = sqlite3.connect(DB_PATH)
+        conn.row_factory = sqlite3.Row
+        cursor = conn.cursor()
+        
+        # 返回所有任务（忽略 project_id 过滤，因为 tracker.db 使用 phase）
+        cursor.execute("""
+            SELECT * FROM tasks 
+            ORDER BY created_at DESC
+            LIMIT ? OFFSET ?
+        """, (limit, skip))
+        
+        rows = cursor.fetchall()
+        conn.close()
+        
+        tasks = []
+        for row in rows:
+            tasks.append(Task(
+                id=str(row['id']),
+                name=row['name'],
+                description=row['description'] or "",
+                status=TaskStatus(row['status']) if row['status'] else TaskStatus.PENDING,
+                priority=TaskPriority(row['priority']) if row['priority'] else TaskPriority.MEDIUM,
+                progress=0,
+                project_id=row['phase'] or "xiaoxia-saas",
+                workspace_id="xiaoxia-workspace",
+                assignee_user_id=row['assigned_to'] or "",
+                created_at=datetime.fromisoformat(row['created_at']) if row['created_at'] else datetime.now(),
+                updated_at=datetime.now()
+            ))
+        
+        return tasks
+    
+    def save(self, task: Task) -> Task:
+        conn = sqlite3.connect(DB_PATH)
+        cursor = conn.cursor()
+        
+        if task.id and task.id.isdigit():
+            # 更新现有任务
+            cursor.execute("""
+                UPDATE tasks 
+                SET name = ?, description = ?, status = ?, priority = ?, assigned_to = ?
+                WHERE id = ?
+            """, (task.name, task.description, task.status.value, task.priority.value, 
+                  task.assignee_user_id, task.id))
+        else:
+            # 创建新任务
+            cursor.execute("""
+                INSERT INTO tasks (name, description, status, phase, priority, assigned_to, created_at)
+                VALUES (?, ?, ?, ?, ?, ?, ?)
+            """, (task.name, task.description, task.status.value, task.project_id,
+                  task.priority.value, task.assignee_user_id, datetime.now().isoformat()))
+            task.id = str(cursor.lastrowid)
+        
+        conn.commit()
+        conn.close()
+        return task
+
+
+class SQLiteMilestoneRepository:
+    """基于 SQLite 的里程碑仓储"""
+    
+    def list_by_project(self, project_id: str) -> List[Milestone]:
+        conn = sqlite3.connect(DB_PATH)
+        conn.row_factory = sqlite3.Row
+        cursor = conn.cursor()
+        
+        cursor.execute("SELECT * FROM milestones ORDER BY start_date")
+        rows = cursor.fetchall()
+        conn.close()
+        
+        milestones = []
+        for row in rows:
+            milestones.append(Milestone(
+                id=str(row['id']),
+                name=row['name'],
+                description=row['description'] or "",
+                target_date=row['end_date'] or "",
+                project_id=row['phase'] or "xiaoxia-saas",
+                workspace_id="xiaoxia-workspace",
+                created_at=datetime.fromisoformat(row['start_date']) if row['start_date'] else datetime.now()
+            ))
+        
+        return milestones
+    
+    def save(self, milestone: Milestone) -> Milestone:
+        conn = sqlite3.connect(DB_PATH)
+        cursor = conn.cursor()
+        
+        if milestone.id and milestone.id.isdigit():
+            cursor.execute("""
+                UPDATE milestones 
+                SET name = ?, description = ?, end_date = ?
+                WHERE id = ?
+            """, (milestone.name, milestone.description, milestone.target_date, milestone.id))
+        else:
+            cursor.execute("""
+                INSERT INTO milestones (name, description, phase, start_date, end_date)
+                VALUES (?, ?, ?, ?, ?)
+            """, (milestone.name, milestone.description, milestone.project_id,
+                  datetime.now().isoformat(), milestone.target_date))
+            milestone.id = str(cursor.lastrowid)
+        
+        conn.commit()
+        conn.close()
+        return milestone
+
+
+class SQLiteTaskIssueRepository:
+    """空实现 - tracker.db 没有 issues 表"""
+    
+    def list_by_task(self, task_id: str) -> List[TaskIssue]:
+        return []
+    
+    def save(self, issue: TaskIssue) -> TaskIssue:
+        return issue