perf: consolidate initial navigation loading

backend/main.py

@@ -173,6 +173,31 @@ async def me(user: User = Depends(current_user)):
     return user
 
 
+@app.get("/api/v1/bootstrap")
+async def bootstrap_data(user: User = Depends(current_user), db: AsyncSession = Depends(get_db)):
+    folders = list((await db.scalars(
+        select(Folder)
+        .where(Folder.user_id == user.id, Folder.deleted_at.is_(None))
+        .order_by(Folder.position, Folder.created_at)
+    )).all())
+    lists = list((await db.scalars(
+        select(TaskList)
+        .where(TaskList.user_id == user.id, TaskList.deleted_at.is_(None))
+        .order_by(TaskList.is_inbox.desc(), TaskList.position, TaskList.created_at)
+    )).all())
+    tags = list((await db.scalars(
+        select(Tag).where(Tag.user_id == user.id).order_by(Tag.name, Tag.id)
+    )).all())
+    inbox = next((item for item in lists if item.is_inbox), None)
+    return {
+        "user": UserOut.model_validate(user),
+        "folders": [FolderOut.model_validate(item) for item in folders],
+        "lists": [ListOut.model_validate(item) for item in lists],
+        "tags": [TagOut.model_validate(item) for item in tags],
+        "inbox_id": inbox.id if inbox else None,
+    }
+
+
 @app.post("/api/v1/auth/logout", status_code=204)
 async def logout(
     response: Response,

frontend/src/App.vue

@@ -107,8 +107,14 @@ async function bootstrap() {
     const status = await api('/setup/status')
     initialized.value = status.initialized
     if (status.initialized) {
-      await api('/me')
+      const data = await api('/bootstrap')
       authenticated.value = true
+      folders.value = data.folders ?? []
+      lists.value = data.lists ?? []
+      tags.value = data.tags ?? []
+      navigationLoaded.value = true
+      activeList.value = data.inbox_id || lists.value.find((item: TaskList) => item.is_inbox)?.id || lists.value[0]?.id || ''
+      expandedFolders.value = new Set(folders.value.map((folder) => folder.id))
       await loadAll()
     }
   } catch { authenticated.value = false; initialized.value ??= true }
@@ -119,6 +125,13 @@ async function submitAuth() {
     const path = initialized.value ? '/auth/login' : '/setup/initialize'
     await api(path, { method: 'POST', body: JSON.stringify({ username: username.value, password: password.value }) })
     initialized.value = true; authenticated.value = true
+    const data = await api('/bootstrap')
+    folders.value = data.folders ?? []
+    lists.value = data.lists ?? []
+    tags.value = data.tags ?? []
+    navigationLoaded.value = true
+    activeList.value = data.inbox_id || lists.value.find((item: TaskList) => item.is_inbox)?.id || lists.value[0]?.id || ''
+    expandedFolders.value = new Set(folders.value.map((folder) => folder.id))
     await loadAll()
   } catch (reason) { fail(reason) }
 }

migrations/versions/0006_remove_duplicate_habit_index.py

@@ -0,0 +1,23 @@
+"""remove duplicate habit log index
+Revision ID: 0006
+Revises: 0005
+"""
+
+from alembic import op
+
+revision = "0006"
+down_revision = "0005"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.drop_index("ix_habit_logs_habit_day", table_name="habit_logs")
+
+
+def downgrade() -> None:
+    op.create_index(
+        "ix_habit_logs_habit_day",
+        "habit_logs",
+        ["habit_id", "day"],
+    )

tests/test_mvp_backend.py

@@ -12,6 +12,23 @@ def boot(client):
     return client.get("/api/v1/lists").json()[0]
 
 
+def test_bootstrap_returns_navigation_and_current_user(client):
+    inbox = boot(client)
+    client.post("/api/v1/folders", json={"name": "工作"})
+    client.post("/api/v1/tags", json={"name": "重要", "color": "#ff0000"})
+    client.post("/api/v1/tasks", json={"title": "首屏任务", "list_id": inbox["id"]})
+
+    response = client.get("/api/v1/bootstrap")
+
+    assert response.status_code == 200
+    data = response.json()
+    assert data["user"]["username"] == "owner"
+    assert any(row["id"] == inbox["id"] for row in data["lists"])
+    assert [row["name"] for row in data["folders"]] == ["工作"]
+    assert [row["name"] for row in data["tags"]] == ["重要"]
+    assert data["inbox_id"] == inbox["id"]
+
+
 def test_recurring_calendar_exceptions_and_scopes(client):
     inbox = boot(client)
     task = client.post(