Fix NotificationCenter DB path on newer macOS

[franklinho]

Summary

• Prefer the newer macOS group.com.apple.usernoted NotificationCenter database path when it exists.
• Fall back to the legacy com.apple.notificationcenter database path.
• Await the existing async DB existence check so startup reports missing notification DBs correctly.

Testing

• Validated locally on macOS 26 with the installed BlueBubbles server ASAR using the usernoted DB path.
• Ran git diff --check on the patch branch.

[zlshames]

LGTM

Edit: nvm

[zlshames]

Wait actually... can you verify one thing for me. Is the schema of the new location the same as the old one? Also, why is this still a draft?

[franklinho]

yes, the new path has the same schema the server expects.
New DB path checked:
~/Library/Group Containers/group.com.apple.usernoted/db2/db
It contains:
CREATE TABLE record (
rec_id INTEGER PRIMARY KEY,
app_id INTEGER,
uuid BLOB,
data BLOB,
request_date REAL,
request_last_date REAL,
delivered_date REAL,
presented Bool,
style INTEGER,
snooze_fire_date REAL
);

CREATE TABLE app (
app_id INTEGER PRIMARY KEY,
identifier VARCHAR,
badge INTEGER NULL
);
That matches the server’s TypeORM entities:
Record.ts maps rec_id, app_id, uuid, data, request_date, request_last_date, delivered_date, presented, style, snooze_fire_date
App.ts maps app_id, identifier, badge