Auction end times, visual flair, and pre-launch cleanup

Auction handling:
- Capture itemEndDate from eBay Browse API and ending_date from ZenMarket
  (Yahoo JP); plumb through results.ends_at column. Permissive ZenMarket
  parser (multiple layouts, JST when offset missing).
- Per-row "Ends" countdown column + "Ending soon" banner on results pages,
  live-ticked by flair.js with urgent/critical tinting under 1h/5m.
- Backfill ends_at for known auctions when their URL reappears in a poll
  (dedup hit no longer drops the new end time).
- Hide ended auctions from result listings by default via
  ResultsQuery.ExcludeEnded; rows stay in the DB.

Visual flair:
- Glassy backdrop-blur v-cards with gradient-mask borders and hover-lift.
- htmx swap fade-in via transient .v-just-swapped class.
- Count-up animation on dashboard stats. All animations gated behind
  prefers-reduced-motion.

eBay condition + region filters (auctions-style scoping):
- items.condition and items.region columns; threaded through item form,
  CreateItem/UpdateItem, scheduler eBay plan input, and previewKey so
  cache invalidates when these change.
- ebay.SearchParams gains conditionIds and itemLocationCountry filters.

Run Now reload + countdown engine:
- Run Now now sets HX-Refresh: true (non-htmx fallback: 303 redirect) so
  the entire results view — best price, chart, badge, last polled —
  reflects the new poll, instead of swapping just one partial.

Pre-launch hardening (P1 set):
- auth.EqualizeLoginTiming on no-such-user branch.
- (*App).serverError centralizes 500s; replaces err.Error() leaks across
  results/settings/items/users/dashboard handlers.
- main.go server: ReadTimeout 30s / WriteTimeout 60s / IdleTimeout 120s
  alongside the existing ReadHeaderTimeout.
- noListFS wrapper blocks static directory listings.
- Credential fields in settings no longer render value=; blank submission
  preserves the saved value, with per-field "Saved in settings / Set in
  config.toml / Not set" status indicator.

Misc:
- -debug flag wires slog to LevelDebug; raw ZenMarket items logged for
  format diagnosis.
- /healthz public endpoint for reverse-proxy probes.
- deploy/veola.service systemd unit template (hardening flags, single
  ReadWritePaths=/var/lib/veola).
- handlers_test.go covers /healthz, setup-gate redirect, auth gate, and
  /login render with httptest + in-memory sqlite.
- best_price_currency on items; templates pick the right symbol per row.
- .gitignore now excludes *.log / veola-debug.log.

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

internal/ebay/ebay_test.go

@@ -43,3 +43,35 @@ func TestBuyingOptionsFilter(t *testing.T) {
 		}
 	}
 }
+
+func TestConditionIDsFilter(t *testing.T) {
+	cases := map[string]string{
+		"":            "",
+		"anything":    "",
+		"new":         "conditionIds:{1000|1500}",
+		"NEW":         "conditionIds:{1000|1500}",
+		" used ":      "conditionIds:{3000}",
+		"refurbished": "conditionIds:{2000|2010|2020|2030|2500}",
+		"parts":       "conditionIds:{7000}",
+	}
+	for in, want := range cases {
+		if got := conditionIDsFilter(in); got != want {
+			t.Errorf("conditionIDsFilter(%q) = %q, want %q", in, got, want)
+		}
+	}
+}
+
+func TestItemLocationFilter(t *testing.T) {
+	cases := map[string]string{
+		"":     "",
+		"  ":   "",
+		"us":   "itemLocationCountry:US",
+		"GB":   "itemLocationCountry:GB",
+		" jp ": "itemLocationCountry:JP",
+	}
+	for in, want := range cases {
+		if got := itemLocationFilter(in); got != want {
+			t.Errorf("itemLocationFilter(%q) = %q, want %q", in, got, want)
+		}
+	}
+}