docs: add notification box details

README.md

@@ -65,6 +65,9 @@ SeedPass now uses the `portalocker` library for cross-platform file locking. No
 - **Relay Management:** List, add, remove or reset configured Nostr relays.
 - **Offline Mode:** Disable all Nostr communication for local-only operation.
 
+A small on-screen notification area now shows queued messages for 10 seconds
+before fading.
+
 ## Prerequisites
 
 - **Python 3.8+** (3.11 or 3.12 recommended): Install Python from [python.org](https://www.python.org/downloads/) and be sure to check **"Add Python to PATH"** during setup. Using Python 3.13 is currently discouraged because some dependencies do not ship wheels for it yet, which can cause build failures on Windows unless you install the Visual C++ Build Tools.  

docs/docs/content/01-getting-started/02-api_reference.md

@@ -31,7 +31,7 @@ Keep this token secret. Every request must include it in the `Authorization` hea
 - `GET /api/v1/totp/export` – Export all TOTP entries as JSON.
 - `GET /api/v1/totp` – Return current TOTP codes and remaining time.
 - `GET /api/v1/stats` – Return statistics about the active seed profile.
-- `GET /api/v1/notifications` – Retrieve and clear queued notifications.
+- `GET /api/v1/notifications` – Retrieve and clear queued notifications. Messages appear in the persistent notification box but remain queued until fetched.
 - `GET /api/v1/parent-seed` – Reveal the parent seed or save it with `?file=`.
 - `GET /api/v1/nostr/pubkey` – Fetch the Nostr public key for the active seed.
 - `POST /api/v1/checksum/verify` – Verify the checksum of the running script.
@@ -199,6 +199,10 @@ curl -H "Authorization: Bearer <token>" \
      http://127.0.0.1:8000/api/v1/notifications
 ```
 
+The TUI displays these alerts in a persistent notification box for 10 seconds,
+but the endpoint returns all queued messages even if they have already
+disappeared from the screen.
+
 ### Changing the Master Password
 
 Update the vault password via `POST /api/v1/change-password`: