fix: attribute direct library prints to the authenticated user

  The library POST /files/{file_id}/print endpoint discarded the
  authenticated user and passed requested_by_user_id=None to the
  dispatcher, so archives created from direct prints had no
  created_by_id and didn't show up in per-user statistics. Queue
  and reprint paths already forwarded the user correctly.

  Bind the auth dependency to current_user and pass its id/username
  through to dispatch_print_library_file, matching the reprint
  endpoint. The dispatcher already propagates this to
  printer_manager.set_current_print_user, which the archive
  creation reads.

CHANGELOG.md

@@ -21,6 +21,7 @@ All notable changes to Bambuddy will be documented in this file.
 - **Plate-Clear Confirmation Disabled by Default** — New installs ship with Settings → Workflow → "Require Plate-Clear Confirmation" off. Multiple new users reported queued prints appearing to not start because the prompt was waiting for acknowledgement; opt in from Workflow if you want the confirmation gate.
 
 ### Fixed
+- **Direct Print from Library Not Attributed to User** — Clicking the Print button on a library file dispatched the job with no `created_by_id`, so the resulting archive had no owner and the print didn't show up in per-user statistics. The Queue and Reprint paths already forwarded the authenticated user; the library `POST /files/{file_id}/print` endpoint now does the same, reading the user from the JWT and passing it through to the dispatcher so direct prints are attributed like queued and reprinted ones.
 - **Add/Edit Printer Modal Clipped on Short Viewports** ([#964](https://github.com/maziggy/bambuddy/issues/964)) — On short or zoomed-in browser windows, the Add Printer and Edit Printer dialogs exceeded the viewport height with no scroll, hiding the lower fields (Access Code, Model, Location) and the Save button. Users had to zoom the browser out to complete the form. The modal overlay now scrolls and the card caps at `calc(100vh - 2rem)` with internal overflow so every field stays reachable regardless of viewport height. Thanks to @MartinNYHC for reporting.
 - **AMS Drying Silently Does Nothing** ([#971](https://github.com/maziggy/bambuddy/issues/971)) — Clicking Start Drying on a supported printer (e.g. P1S with AMS 2 Pro) could publish the MQTT command successfully but leave the AMS idle with no UI feedback. Two issues: (1) the firmware rejects the command when `dry_sf_reason` reports a blocking state (most commonly code 8 — AMS 2 Pro external power adapter not plugged in — but also "AMS busy", "already drying", etc.), and Bambuddy parsed that array but never surfaced it to the user; (2) the payload sent `filament: ""`, which some firmwares treat as an invalid-field refusal. The `/drying/start` endpoint now inspects the live `dry_sf_reason` for the target AMS unit and returns a descriptive 409 (e.g. "Plug in the external AMS power adapter to start drying") instead of silently publishing, and backfills an empty `filament` from the first loaded tray's type (defaulting to `PLA`) so the printer never rejects the command for a missing field. Thanks to @MartinNYHC for reporting.
 - **Webhook Tokens Leaked into Logs When Debug Logging Enabled (Security)** — Turning on Settings → Support → Debug Logging elevated the `httpx` and `httpcore` loggers to DEBUG, which caused httpx to log the full URL of every outbound HTTP request. For Discord notifications and generic webhook notifications, the URL *is* the secret — the bearer token is embedded in the path — so any user who enabled debug logging (typically to capture logs for a bug report) was writing their Discord webhook token to `bambuddy.log` and then pasting it into GitHub issues or support bundles. `httpx`/`httpcore` are now pinned to `WARNING` regardless of the debug toggle; `paho.mqtt` still honours debug. If you enabled debug logging while notifications were sending, rotate any exposed Discord/webhook URLs — the token is in the path, so the whole URL must be regenerated in the provider's UI.

backend/app/api/routes/library.py

@@ -2169,7 +2169,7 @@ async def print_library_file(
     printer_id: int,
     body: FilePrintRequest | None = None,
     db: AsyncSession = Depends(get_db),
-    _: User | None = Depends(require_permission_if_auth_enabled(Permission.PRINTERS_CONTROL)),
+    current_user: User | None = Depends(require_permission_if_auth_enabled(Permission.PRINTERS_CONTROL)),
 ):
     """Dispatch a library file for send/start on a printer.
 
@@ -2238,8 +2238,8 @@ async def print_library_file(
             printer_name=printer.name,
             options=body.model_dump(exclude_none=True),
             project_id=body.project_id,
-            requested_by_user_id=None,
-            requested_by_username=None,
+            requested_by_user_id=current_user.id if current_user else None,
+            requested_by_username=current_user.username if current_user else None,
         )
     except DispatchEnqueueRejected as e:
         raise HTTPException(status_code=409, detail=str(e)) from e