fix: GStreamer PipeWire Plugin-Pfad im Nix-Launcher + Paste-Collapse (10 Zeilen) [appimage]

- GST_PLUGIN_SYSTEM_PATH_1_0 mit pipewire im wrapProgram gesetzt
- User-Nachrichten >10 Zeilen werden collapsed ("Eingefuegt: X Zeilen")
- Assistant-Nachrichten weiterhin ab 25 Zeilen

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

nix/default.nix

@@ -37,6 +37,16 @@ let
     openssl
   ];
 
+  # GStreamer-Plugins fuer WebKitGTK (Audio/Video, WebRTC, Mikrofon via PipeWire)
+  gstPlugins = with pkgs.gst_all_1; [
+    gst-plugins-base
+    gst-plugins-good
+    gst-plugins-bad
+  ];
+
+  gstPluginPath = pkgs.lib.concatMapStringsSep ":" (p: "${p}/lib/gstreamer-1.0") gstPlugins
+    + ":${pkgs.pipewire}/lib/gstreamer-1.0";
+
   # Laufzeit-Binaries die die App spawnen muss (node fuer claude-bridge.js,
   # npm fuer apply_bundle_update, tar fuer Bundle-Extract)
   runtimeBins = [ pkgs.nodejs_22 pkgs.gnutar pkgs.gzip ];
@@ -109,9 +119,11 @@ pkgs.stdenv.mkDerivation {
 
     # LD_LIBRARY_PATH + PATH dauerhaft ans Launcher-Script binden
     # PATH: node/npm/tar muessen fuer die Bridge und apply_bundle_update verfuegbar sein
+    # GST_PLUGIN_SYSTEM_PATH_1_0: GStreamer-Plugins fuer WebKitGTK (Mikrofon/PipeWire)
     wrapProgram $out/bin/claude-desktop \
       --prefix LD_LIBRARY_PATH : ${pkgs.lib.makeLibraryPath runtimeLibs} \
-      --prefix PATH : ${pkgs.lib.makeBinPath runtimeBins}
+      --prefix PATH : ${pkgs.lib.makeBinPath runtimeBins} \
+      --prefix GST_PLUGIN_SYSTEM_PATH_1_0 : ${gstPluginPath}
 
     # 2) Installer: kopiert ein frisch gebautes Binary an den Ziel-Ort
     cat > $out/bin/claude-desktop-install <<'INSTALLER'

src/lib/components/ChatPanel.svelte

@@ -27,8 +27,9 @@
 
 	marked.setOptions({ breaks: true, gfm: true, renderer });
 
-	// Collapse: Nachrichten mit > 25 Zeilen werden eingeklappt
+	// Collapse: Nachrichten mit > X Zeilen werden eingeklappt (rollenabhängig)
-	const COLLAPSE_LINES = 25;
+	const COLLAPSE_LINES_USER = 10;
+	const COLLAPSE_LINES_ASSISTANT = 25;
 	let expandedMessages = $state<string[]>([]);
 
 	function toggleExpand(msgId: string) {
@@ -39,8 +40,13 @@
 		}
 	}
 
-	function shouldCollapse(content: string): boolean {
+	function shouldCollapse(content: string, role: string = 'assistant'): boolean {
-		return content.split('\n').length > COLLAPSE_LINES;
+		const limit = role === 'user' ? COLLAPSE_LINES_USER : COLLAPSE_LINES_ASSISTANT;
+		return content.split('\n').length > limit;
+	}
+
+	function getCollapseLimit(role: string): number {
+		return role === 'user' ? COLLAPSE_LINES_USER : COLLAPSE_LINES_ASSISTANT;
 	}
 
 	function renderMarkdown(text: string): string {
@@ -917,16 +923,16 @@
 							</div>
 						{:else if message.role === 'assistant'}
 							{#if message.content}
-								{#if shouldCollapse(message.content) && !expandedMessages.includes(message.id) && !($isProcessing && isLastAssistantMessage(index))}
+								{#if shouldCollapse(message.content, 'assistant') && !expandedMessages.includes(message.id) && !($isProcessing && isLastAssistantMessage(index))}
 									<div class="msg-collapsed">
-										{@html renderMarkdown(message.content.split('\n').slice(0, COLLAPSE_LINES).join('\n') + '\n...')}
+										{@html renderMarkdown(message.content.split('\n').slice(0, COLLAPSE_LINES_ASSISTANT).join('\n') + '\n...')}
 									</div>
 									<button class="expand-btn" onclick={() => toggleExpand(message.id)}>
 										▼ Mehr anzeigen ({message.content.split('\n').length} Zeilen)
 									</button>
 								{:else}
 									{@html renderMarkdown(message.content)}
-									{#if shouldCollapse(message.content) && !($isProcessing && isLastAssistantMessage(index))}
+									{#if shouldCollapse(message.content, 'assistant') && !($isProcessing && isLastAssistantMessage(index))}
 										<button class="expand-btn" onclick={() => toggleExpand(message.id)}>
 											▲ Einklappen
 										</button>
@@ -951,7 +957,21 @@
 								</span>
 							{/if}
 						{:else}
-							{message.content}
+							{#if message.role === 'user' && message.content && shouldCollapse(message.content, 'user') && !expandedMessages.includes(message.id)}
+								<div class="msg-collapsed">
+									{message.content.split('\n').slice(0, COLLAPSE_LINES_USER).join('\n')}{'\n...'}
+								</div>
+								<button class="expand-btn" onclick={() => toggleExpand(message.id)}>
+									▼ Eingefügt: {message.content.split('\n').length} Zeilen
+								</button>
+							{:else}
+								{message.content}
+								{#if message.role === 'user' && message.content && shouldCollapse(message.content, 'user')}
+									<button class="expand-btn" onclick={() => toggleExpand(message.id)}>
+										▲ Einklappen
+									</button>
+								{/if}
+							{/if}
 						{/if}
 					</div>
 				</div>