-- uv 只认平台自己的副本（程序目录 uv）或用户指定的路径，不再读系统 PATH。
CREATE TABLE uv_settings_v2 (
    id INTEGER PRIMARY KEY CHECK (id = 1),
    source TEXT NOT NULL CHECK (source IN ('managed', 'custom')),
    custom_path TEXT,
    updated_at TEXT NOT NULL
);

INSERT INTO uv_settings_v2 (id, source, custom_path, updated_at)
SELECT id,
       CASE WHEN source = 'custom' THEN 'custom' ELSE 'managed' END,
       custom_path,
       updated_at
FROM uv_settings;

DROP TABLE uv_settings;

ALTER TABLE uv_settings_v2 RENAME TO uv_settings;

INSERT OR IGNORE INTO uv_settings (id, source, custom_path, updated_at)
VALUES (1, 'managed', NULL, strftime('%Y-%m-%dT%H:%M:%fZ', 'now'));