fix(ui): brighten footer link text for readability on dark background

Backend was missing POCKET_TTS_URL entirely — pocketTTSClient was nil
so voices() only returned 67 Kokoro voices. Runner already had the var
via Doppler but it was absent from the compose environment block.

Also fix stray leading space on backend environment: key (YAML parse error).

Verified: /api/voices now returns 87 voices (67 kokoro + 20 pocket-tts).

docker-compose.yml

@@ -154,7 +154,7 @@ services:
     # No public port — all traffic is routed via Caddy.
     expose:
       - "8080"
-     environment:
+    environment:
       <<: *infra-env
       BACKEND_HTTP_ADDR: ":8080"
       LOG_LEVEL: "${LOG_LEVEL}"
@@ -224,6 +224,7 @@ services:
       # Kokoro-FastAPI TTS endpoint
       KOKORO_URL: "${KOKORO_URL}"
       KOKORO_VOICE: "${KOKORO_VOICE}"
+      POCKET_TTS_URL: "${POCKET_TTS_URL}"
       GLITCHTIP_DSN: "${GLITCHTIP_DSN}"
       OTEL_EXPORTER_OTLP_ENDPOINT: "${OTEL_EXPORTER_OTLP_ENDPOINT}"
       OTEL_SERVICE_NAME: "runner"

ui/src/routes/+layout.svelte

@@ -396,16 +396,16 @@
 	</main>
 
 	<footer class="border-t border-zinc-800 mt-auto">
-		<div class="max-w-6xl mx-auto px-4 py-6 flex flex-col items-center gap-4 text-xs text-zinc-600">
+		<div class="max-w-6xl mx-auto px-4 py-6 flex flex-col items-center gap-4 text-xs text-zinc-500">
 			<!-- Top row: site links -->
 			<nav class="flex flex-wrap items-center justify-center gap-x-5 gap-y-2">
-			<a href="/books" class="hover:text-zinc-400 transition-colors">Library</a>
-			<a href="/catalogue" class="hover:text-zinc-400 transition-colors">Catalogue</a>
+			<a href="/books" class="hover:text-zinc-300 transition-colors">Library</a>
+			<a href="/catalogue" class="hover:text-zinc-300 transition-colors">Catalogue</a>
 			<a
 				href="https://feedback.libnovel.cc"
 				target="_blank"
 				rel="noopener noreferrer"
-				class="hover:text-zinc-400 transition-colors flex items-center gap-1"
+				class="hover:text-zinc-300 transition-colors flex items-center gap-1"
 			>
 				Feedback
 				<svg class="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -417,7 +417,7 @@
 				href="https://novelfire.net"
 					target="_blank"
 					rel="noopener noreferrer"
-					class="hover:text-zinc-400 transition-colors flex items-center gap-1"
+					class="hover:text-zinc-300 transition-colors flex items-center gap-1"
 				>
 					novelfire.net
 					<svg class="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -427,10 +427,10 @@
 				</a>
 			</nav>
 		<!-- Bottom row: legal links + copyright -->
-		<div class="flex flex-wrap items-center justify-center gap-x-5 gap-y-2 text-zinc-700">
-			<a href="/disclaimer" class="hover:text-zinc-500 transition-colors">Disclaimer</a>
-			<a href="/privacy" class="hover:text-zinc-500 transition-colors">Privacy</a>
-			<a href="/dmca" class="hover:text-zinc-500 transition-colors">DMCA</a>
+		<div class="flex flex-wrap items-center justify-center gap-x-5 gap-y-2 text-zinc-500">
+			<a href="/disclaimer" class="hover:text-zinc-300 transition-colors">Disclaimer</a>
+			<a href="/privacy" class="hover:text-zinc-300 transition-colors">Privacy</a>
+			<a href="/dmca" class="hover:text-zinc-300 transition-colors">DMCA</a>
 			<span>&copy; {new Date().getFullYear()} libnovel</span>
 		</div>
 		<!-- Build version / commit SHA / build time -->