Fix SpoolBuddy low filament warning missing slot number

  Status bar showed "AMS B" instead of specific slot like "B2". Now uses
  formatSlotLabel with tray index to display the full slot label.

CHANGELOG.md

@@ -29,6 +29,7 @@ All notable changes to Bambuddy will be documented in this file.
 - **SpoolBuddy Boot Splash Polished** — New splash image displays only the SpoolBuddy logo (removed Bambuddy branding) with green glow bloom, radial gradient background, light rays, and vignette. A generator script (`generate_splash.py`) is included for easy customization. Also reduced redundant initramfs rebuilds during install by deferring the rebuild until after the Plymouth theme is configured.
 
 ### Fixed
+- **SpoolBuddy Low Filament Warning Missing Slot Number** — The status bar low filament warning showed "AMS B" instead of the specific slot like "B2". Now uses `formatSlotLabel` to display the full slot label (e.g. "Low Filament: PLA (B2) - 4% remaining").
 - **SpoolBuddy Read Tag Diagnostic Fails on NTAG Tags** — The `read_tag.py` diagnostic script had five issues preventing NTAG reads: (1) SAK `0x04` (MIFARE Ultralight family) was rejected as "unsupported tag type" — now accepts both `0x00` and `0x04`. (2) `ntag_read_pages` had TX CRC off (should be on per NTAG spec), no Crypto1 clear, and no IDLE→TRANSCEIVE state reset. (3) The PN5180 enters an unrecoverable state after an NTAG READ command — added full GPIO hardware reset between each 4-page batch. (4) Reading past the end of smaller tags (MIFARE Ultralight has 16 pages vs NTAG's 44+) caused a hard failure — now returns partial data gracefully. (5) `ntag_write_page`/`ntag_write_pages` had the same stale CRC/state issues plus unreliable ACK checking and post-write verification — synced with daemon.
 - **Delete Tag Leaves Stale Tag Type** — The "Delete Tag" button in the spool edit modal only cleared `tag_uid` but left `tray_uuid`, `tag_type`, and `data_origin` intact. All tag-related fields are now cleared together.
 - **SpoolBuddy NFC Write Fails on NTAG Tags** — Multiple issues prevented writing to NTAG 213/215/216 tags. (1) Some chips report SAK `0x04` (MIFARE Ultralight family) instead of `0x00` during anticollision — both `0x00` and `0x04` are now accepted. (2) TX CRC was disabled for NTAG commands but the spec requires it — enabled for both WRITE and READ. (3) The PN5180 state machine needed IDLE→TRANSCEIVE resets (not just `set_transceive_mode()`) and Crypto1 cleared before NTAG operations. (4) The 4-bit WRITE ACK cannot be captured by the PN5180 (SOF detected but no RX_IRQ) — removed per-page ACK checking. (5) Post-write read-back verification also failed (second READ command gets no response from the PN5180) — removed verification since the tag reliably ACKs each write.

frontend/src/pages/spoolbuddy/SpoolBuddyAmsPage.tsx

@@ -6,7 +6,7 @@ import { Layers, Settings2, Package, Unlink, Link2, X } from 'lucide-react';
 import type { SpoolBuddyOutletContext } from '../../components/spoolbuddy/SpoolBuddyLayout';
 import { api } from '../../api/client';
 import type { PrinterStatus, AMSTray, SpoolAssignment } from '../../api/client';
-import { getGlobalTrayId, getFillBarColor, getSpoolmanFillLevel, getFallbackSpoolTag } from '../../utils/amsHelpers';
+import { getGlobalTrayId, getFillBarColor, getSpoolmanFillLevel, getFallbackSpoolTag, formatSlotLabel } from '../../utils/amsHelpers';
 import { AmsUnitCard, HumidityIndicator, TemperatureIndicator, NozzleBadge } from '../../components/spoolbuddy/AmsUnitCard';
 import type { AmsThresholds } from '../../components/spoolbuddy/AmsUnitCard';
 import { ConfigureAmsSlotModal } from '../../components/ConfigureAmsSlotModal';
@@ -388,11 +388,16 @@ export function SpoolBuddyAmsPage() {
       return;
     }
     for (const unit of amsUnits) {
-      for (const tray of unit.tray || []) {
+      const trays = unit.tray || [];
+      for (let i = 0; i < trays.length; i++) {
+        const tray = trays[i];
         if (tray.remain !== null && tray.remain >= 0 && tray.remain < 15 && tray.tray_type) {
+          const isExternal = unit.id === 254 || unit.id === 255;
+          const isHt = !isExternal && unit.id >= 128;
+          const slot = formatSlotLabel(unit.id, i, isHt, isExternal);
           setAlert({
             type: 'warning',
-            message: `Low Filament: ${tray.tray_type} (${getAmsName(unit.id)}) - ${tray.remain}% remaining`,
+            message: `Low Filament: ${tray.tray_type} (${slot}) - ${tray.remain}% remaining`,
           });
           return;
         }

static/index.html

@@ -23,7 +23,7 @@
 
     <!-- Splash screens for iOS -->
     <link rel="apple-touch-startup-image" href="/img/android-chrome-512x512.png" />
-    <script type="module" crossorigin src="/assets/index-DpMrBbPn.js"></script>
+    <script type="module" crossorigin src="/assets/index-COZAa55N.js"></script>
     <link rel="stylesheet" crossorigin href="/assets/index-DWwO6mIe.css">
   </head>
   <body>