feat: add miband bot application

tests/test_storage.py

@@ -0,0 +1,49 @@
+from pathlib import Path
+
+from miband_tracker import storage
+from miband_tracker.config import Settings
+
+
+def _settings(tmp_path: Path) -> Settings:
+    return Settings(
+        data_dir=tmp_path,
+        db_path=tmp_path / "miband.db",
+        status_path=tmp_path / "status.json",
+        bot_state_db_path=tmp_path / "fitness_bot_state.db",
+        telegram_bot_token="token",
+        telegram_allowed_user_id=123,
+        sync_interval=900,
+        query_duration=2,
+        enable_fds_sleep_details=True,
+    )
+
+
+def test_init_health_db_is_idempotent(tmp_path: Path) -> None:
+    db_path = tmp_path / "miband_123.db"
+
+    storage.init_health_db(db_path)
+    storage.init_health_db(db_path)
+
+    with storage.sqlite_conn(db_path) as conn:
+        tables = {
+            row["name"]
+            for row in conn.execute("SELECT name FROM sqlite_master WHERE type = 'table'").fetchall()
+        }
+    assert {"steps_daily", "sleep_daily", "heart_rate", "blood_oxygen"}.issubset(tables)
+
+
+def test_zip_export_includes_non_empty_tables_only(tmp_path: Path) -> None:
+    settings = _settings(tmp_path)
+    db_path = settings.canonical_user_db_path()
+    storage.init_health_db(db_path)
+    with storage.sqlite_conn(db_path, row_factory=False) as conn:
+        conn.execute(
+            "INSERT INTO steps_daily (date, total_steps, calories, distance_m, last_sync) VALUES (?, ?, ?, ?, ?)",
+            ("2026-05-24", 1000, 10.0, 800.0, 1),
+        )
+        conn.commit()
+
+    archive = storage.zip_export(settings)
+
+    assert archive.getbuffer().nbytes > 0
+    assert b"steps_daily.csv" in archive.getvalue()