Initial commit: CinemaTrailers4Jellyfins plugin

Adapted from Trailers4Jellyfin: keeps TMDB/YouTube trailer downloading,
the scheduled task, language/source/date filters, and trailer rotation,
but drops cinema-mode/IIntroProvider entirely. Each trailer now ships in
its own fake-movie folder (placeholder video + locked NFO + trailer) for
use with a Cinema Mode / trailer pre-roll plugin.

Jellyfin.Plugin.CinemaTrailers4Jellyfins/Images/logo.svg

@@ -0,0 +1,60 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 400 280" width="400" height="280">
+  <defs>
+    <linearGradient id="bg" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" style="stop-color:#1b2735"/>
+      <stop offset="100%" style="stop-color:#0c1118"/>
+    </linearGradient>
+    <linearGradient id="folderBody" x1="0%" y1="0%" x2="0%" y2="100%">
+      <stop offset="0%" style="stop-color:#3fd1c0"/>
+      <stop offset="100%" style="stop-color:#1f9e93"/>
+    </linearGradient>
+    <linearGradient id="folderTab" x1="0%" y1="0%" x2="0%" y2="100%">
+      <stop offset="0%" style="stop-color:#5be3d3"/>
+      <stop offset="100%" style="stop-color:#2fb3a6"/>
+    </linearGradient>
+    <filter id="glow">
+      <feGaussianBlur stdDeviation="3" result="coloredBlur"/>
+      <feMerge>
+        <feMergeNode in="coloredBlur"/>
+        <feMergeNode in="SourceGraphic"/>
+      </feMerge>
+    </filter>
+  </defs>
+
+  <!-- Background -->
+  <rect width="400" height="280" fill="url(#bg)" rx="12"/>
+
+  <!-- Folder tab -->
+  <path d="M 130 78 h 60 l 16 18 h 64 a 10 10 0 0 1 10 10 v 6 H 120 v -24 a 10 10 0 0 1 10 -10 z" fill="url(#folderTab)"/>
+
+  <!-- Folder body -->
+  <rect x="110" y="112" width="180" height="100" rx="12" fill="url(#folderBody)"/>
+
+  <!-- Inner "screen" cut-out suggesting a video file inside the folder -->
+  <rect x="132" y="132" width="136" height="62" rx="6" fill="#0c1118" fill-opacity="0.55"/>
+
+  <!-- Play triangle -->
+  <polygon points="186,148 186,178 216,163" fill="#ffffff" filter="url(#glow)"/>
+
+  <!-- Duplicate ghost folder behind, hinting at the "copied placeholder" concept -->
+  <rect x="252" y="100" width="64" height="46" rx="8" fill="#5be3d3" fill-opacity="0.18"/>
+  <rect x="252" y="100" width="64" height="46" rx="8" fill="none" stroke="#5be3d3" stroke-opacity="0.45" stroke-width="1.5" stroke-dasharray="4 3"/>
+
+  <!-- Title -->
+  <text x="200" y="240"
+        font-family="'Segoe UI', Arial, sans-serif"
+        font-size="25"
+        font-weight="700"
+        fill="#ffffff"
+        text-anchor="middle"
+        letter-spacing="0.5">CinemaTrailers4Jellyfins</text>
+
+  <!-- Subtitle -->
+  <text x="200" y="260"
+        font-family="'Segoe UI', Arial, sans-serif"
+        font-size="12"
+        fill="#5be3d3"
+        text-anchor="middle"
+        letter-spacing="3"
+        font-weight="400">TRAILER LIBRARY BUILDER</text>
+</svg>