feat(P7.1): remove task_type='task' — migrate to issue/defect, update defaults and DB migration

app/api/routers/misc.py

@@ -445,7 +445,7 @@ def create_milestone_task(project_code: str, milestone_id: int, task_data: dict,
         description=task_data.get("description"),
         status=TaskStatus.OPEN,
         priority=TaskPriority.MEDIUM,
-        task_type=task_data.get("task_type", "task"),
+        task_type=task_data.get("task_type", "issue"),  # P7.1: default changed from 'task' to 'issue'
         task_subtype=task_data.get("task_subtype"),
         project_id=project.id,
         milestone_id=milestone_id,

app/api/routers/tasks.py

@@ -46,7 +46,7 @@ TASK_SUBTYPE_MAP = {
     'story': {'feature', 'improvement', 'refactor'},
     'test': {'regression', 'security', 'smoke', 'stress'},
     'research': set(),
-    'task': {'defect'},
+    # P7.1: 'task' type removed — defect subtype migrated to issue/defect
     'resolution': set(),
 }
 ALLOWED_TASK_TYPES = set(TASK_SUBTYPE_MAP.keys())

app/main.py

@@ -129,7 +129,7 @@ def _migrate_schema():
         # tasks extra fields
         result = db.execute(text("SHOW COLUMNS FROM tasks LIKE 'task_type'"))
         if not result.fetchone():
-            db.execute(text("ALTER TABLE tasks ADD COLUMN task_type VARCHAR(32) DEFAULT 'task'"))
+            db.execute(text("ALTER TABLE tasks ADD COLUMN task_type VARCHAR(32) DEFAULT 'issue'"))
         result = db.execute(text("SHOW COLUMNS FROM tasks LIKE 'task_subtype'"))
         if not result.fetchone():
             db.execute(text("ALTER TABLE tasks ADD COLUMN task_subtype VARCHAR(64) NULL"))
@@ -194,6 +194,10 @@ def _migrate_schema():
             if not _has_column(db, "milestones", "started_at"):
                 db.execute(text("ALTER TABLE milestones ADD COLUMN started_at DATETIME NULL"))
 
+        # --- P7.1: Migrate task_type='task' to 'issue' ---
+        if _has_table(db, "tasks") and _has_column(db, "tasks", "task_type"):
+            db.execute(text("UPDATE tasks SET task_type='issue' WHERE task_type='task'"))
+
         # --- Task status enum migration (old -> new) ---
         if _has_table(db, "tasks"):
             # Widen enum first

app/models/task.py

@@ -28,7 +28,7 @@ class Task(Base):
     task_code = Column(String(64), nullable=True, unique=True, index=True)
     
     # Task type/subtype (replaces old issue_type/issue_subtype)
-    task_type = Column(String(32), default="task")
+    task_type = Column(String(32), default="issue")  # P7.1: default changed from 'task' to 'issue'
     task_subtype = Column(String(64), nullable=True)
     
     project_id = Column(Integer, ForeignKey("projects.id"), nullable=False)

app/schemas/schemas.py

@@ -12,7 +12,7 @@ class TaskTypeEnum(str, Enum):
     STORY = "story"
     TEST = "test"
     RESOLUTION = "resolution"
-    TASK = "task"
+    # P7.1: 'task' type removed — defect subtype migrated to issue/defect
 
 
 class TaskStatusEnum(str, Enum):
@@ -34,7 +34,7 @@ class TaskPriorityEnum(str, Enum):
 class TaskBase(BaseModel):
     title: str
     description: Optional[str] = None
-    task_type: TaskTypeEnum = TaskTypeEnum.TASK
+    task_type: TaskTypeEnum = TaskTypeEnum.ISSUE
     task_subtype: Optional[str] = None
     priority: TaskPriorityEnum = TaskPriorityEnum.MEDIUM
     tags: Optional[str] = None