fix: AnimatedFileEdit-Layout — Zeilen brechen jetzt um statt eine endlose Zeile [appimage]

- AnimatedFileEdit: <pre> -> <div> + display:block fuer .line
- white-space: pre-wrap damit lange Zeilen umbrechen statt querzuscrollen
- min-height auf .line damit leere Zeilen sichtbar bleiben
- presentation: align-items stretch + file-edit auf volle Breite (max 1400px)

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

src/lib/components/AnimatedFileEdit.svelte

@@ -165,10 +165,7 @@
 		<span class="path">{filePath}</span>
 		<span class="lang-tag">{language}</span>
 	</div>
-	<pre class="code"><code>{#each ops as op, i (i)}{#if op.kind === 'keep'}<span class="line keep">{op.text}
-</span>{:else if op.kind === 'del'}<span class="line del">{op.text}
-</span>{:else if op.kind === 'add'}<span class="line add" class:typing={i === currentAddIdx} class:swept={phase === 'sweep' || phase === 'done'}>{visibleAddText(i, op.text)}{#if i === currentAddIdx}<span class="caret">▍</span>{/if}
-</span>{/if}{/each}</code></pre>
+	<div class="code"><code>{#each ops as op, i (i)}{#if op.kind === 'keep'}<span class="line keep">{op.text || ' '}</span>{:else if op.kind === 'del'}<span class="line del">{op.text || ' '}</span>{:else if op.kind === 'add'}<span class="line add" class:typing={i === currentAddIdx} class:swept={phase === 'sweep' || phase === 'done'}>{visibleAddText(i, op.text) || ' '}{#if i === currentAddIdx}<span class="caret">▍</span>{/if}</span>{/if}{/each}</code></div>
 </div>
 
 <style>
@@ -230,21 +227,27 @@
 
 	.code {
 		margin: 0;
-		padding: 14px 16px;
+		padding: 14px 0;
 		font-family: 'JetBrains Mono', 'Cascadia Code', monospace;
 		font-size: 13.5px;
 		line-height: 1.55;
 		color: #e2e8f0;
-		max-height: 60vh;
+		max-height: 70vh;
 		overflow-y: auto;
-		white-space: pre;
+		overflow-x: hidden;
+	}
+	.code code {
+		background: transparent;
+		color: inherit;
+		display: block;
 	}
-	.code code { background: transparent; color: inherit; }
 
 	.line {
-		display: inline-block;
-		width: 100%;
-		padding: 0 4px;
+		display: block;
+		padding: 0 16px;
+		white-space: pre-wrap;
+		word-break: break-word;
+		min-height: 1.55em;
 	}
 
 	.line.keep { color: #94a3b8; }

src/routes/presentation/+page.svelte

@@ -186,10 +186,16 @@
 		padding: 2rem;
 		display: flex;
 		flex-direction: column;
-		align-items: center;
-		justify-content: center;
+		align-items: stretch;
+		justify-content: flex-start;
 		gap: 1.5rem;
 	}
+	.content :global(h1) { text-align: center; }
+	.content :global(.file-edit) {
+		align-self: center;
+		max-width: 1400px;
+		width: 100%;
+	}
 
 	h1 {
 		font-size: 2rem;