drift_flutter's native default is getApplicationDocumentsDirectory(), which on
Windows resolves to the user's Documents folder - redirected into OneDrive on
most machines (verified: drift_flutter 0.3.1 connect.dart). A live SQLite file
syncing to OneDrive risks lock contention and corruption, and it is simply the
wrong place for app data.
The DB now opens in getApplicationSupportDirectory() (%APPDATA% on Windows),
the same place SharedPreferences already lives, so all app data sits together.
Existing installs already have a DB in the old location, so opening a fresh one
there would abandon their migrated history. _appSupportDatabaseDirectory()
relocates it once on first run: it moves offband_store.sqlite and its -wal/-shm
sidecars from the documents dir to the support dir before drift opens, and
never deletes a source without a successful copy. If relocation fails it is
logged loudly and a fresh DB is created, with the migration re-running from
SharedPreferences rather than silently losing anything.
Web is unaffected: path_provider has no web backend and drift ignores
databaseDirectory there, using OPFS/IndexedDB.
Adds `path` as a direct dependency (was transitive).
flutter analyze clean, tests pass.
Strycher
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