v0.8.8: wire HF autocomplete to longscore-input

User-reported gap: LongScore input lacked the search-as-you-type HF Hub
dropdown that Profile / Unmask / Template / Quant / NIAH / Spec-Decode
all have. Inconsistent UX.

Fix: add "longscore-input" to the canonical id list in
attachAllHfAutocompletes(). Same idempotent attachment, same dropdown,
same behavior — paste a partial id, see live HF Hub matches with
download counts, click to fill.

attachAllHfAutocompletes is called once at main.js startup (line 41),
which runs after DOM ready, so the input is found and wired
automatically.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

js/hf_autocomplete.js

@@ -198,11 +198,11 @@ export function attachHfAutocomplete(inputEl, options = {}) {
 }
 
 // Convenience: attach to all known HF-id inputs in TAF Agent.
-// NIAH was added in v0.7.6 — keep this list in sync when adding new modes.
+// NIAH was added in v0.7.6, LongScore in v0.8.8 — keep this list in sync when adding new modes.
 export function attachAllHfAutocompletes() {
   const ids = [
     "hf-id", "profile-hf-id", "unmask-id", "template-id", "quant-id", "niah-id",
-    "spec-target-id", "spec-draft-id",
+    "spec-target-id", "spec-draft-id", "longscore-input",
   ];
   for (const id of ids) {
     const el = document.getElementById(id);