feat: auto-search IGDB on file select, pick match or type custom title

Upload flow is now:
1. Click +Upload → select a .zip file
2. IGDB is auto-searched with the filename
3. If matches found → show results as selectable cards + fallback
   custom title search at the bottom
4. If no matches → show 'no matches' + manual title + Upload btn
   + a fallback 'Use filename: xxx' button
5. Clicking a result uploads immediately with that game's title
   (so IGDB auto-scrape picks it up correctly)
6. Cancel button to dismiss

frontend/src/pages/Library.svelte

@@ -1,5 +1,5 @@
 <script>
-  import { listGames, uploadGame } from "../lib/api.js";
+  import { listGames, uploadGame, searchIGDB } from "../lib/api.js";
   import GameCard from "../lib/GameCard.svelte";
 
   let games = $state([]);
@@ -12,6 +12,9 @@
   let pendingFile = $state(null);
   let pendingFileName = $state("");
   let pendingTitle = $state("");
+  let searching = $state(false);
+  let searchError = $state("");
+  let igdbResults = $state(null); // null=loading, []=no results, [{...}]=matches
 
   let fileInput;
 
@@ -33,14 +36,46 @@
     pendingFile = file;
     pendingFileName = name;
     pendingTitle = "";
-    // Reset input so the same file can be re-selected
+    igdbResults = null;
+    searching = true;
+    searchError = "";
     fileInput.value = "";
+    // Auto-search IGDB with the filename
+    searchIGDB(name).then(data => {
+      igdbResults = data.results || [];
+    }).catch(err => {
+      searchError = "IGDB search failed: " + err.message;
+      igdbResults = [];
+    }).finally(() => {
+      searching = false;
+    });
+  }
+
+  async function handleManualSearch() {
+    const q = pendingTitle.trim();
+    if (!q) return;
+    searching = true;
+    searchError = "";
+    igdbResults = null;
+    try {
+      const data = await searchIGDB(q);
+      igdbResults = data.results || [];
+      if (igdbResults.length === 0) {
+        searchError = "No matches found on IGDB.";
+      }
+    } catch (err) {
+      searchError = "IGDB search failed: " + err.message;
+      igdbResults = [];
+    }
+    searching = false;
   }
 
   function cancelUpload() {
     pendingFile = null;
     pendingFileName = "";
     pendingTitle = "";
+    igdbResults = null;
+    searchError = "";
   }
 
   async function doUpload(title) {
@@ -93,23 +128,74 @@
       <div class="upload-dialog" onclick={(e) => e.stopPropagation()} role="dialog">
         <h3>Upload Game</h3>
         <p class="upload-file-name">{pendingFileName}.zip</p>
-        <div class="upload-dialog-actions">
+
-          <button class="btn btn-primary" onclick={() => doUpload("")} disabled={uploading}>
+        <div class="upload-dialog-body">
-            {uploading ? "Uploading..." : "Use filename as title"}
+          {#if searching}
+            <div class="status-msg">Searching IGDB for "{pendingFileName}"...</div>
+          {:else if igdbResults !== null && igdbResults.length > 0}
+            <p class="match-label">Select a match or enter a custom title:</p>
+            <div class="upload-igdb-results">
+              {#each igdbResults as result (result.igdb_id)}
+                <button
+                  class="igdb-result"
+                  onclick={() => doUpload(result.name)}
+                  disabled={uploading}
+                >
+                  {#if result.cover_url}
+                    <img src={result.cover_url} alt={result.name} class="igdb-thumb" loading="lazy" />
+                  {:else}
+                    <div class="igdb-thumb-placeholder">🎮</div>
+                  {/if}
+                  <div class="igdb-info">
+                    <strong>{result.name}</strong>
+                    <span class="igdb-meta">
+                      {result.year || "—"}
+                      {#if result.genres?.length} · {result.genres.slice(0, 2).join(", ")}{/if}
+                    </span>
+                    {#if result.developer}
+                      <span class="igdb-dev">{result.developer}</span>
+                    {/if}
+                  </div>
                 </button>
+              {/each}
+            </div>
             <div class="upload-custom-row">
               <input
                 type="text"
-              placeholder="Enter a custom title..."
+                placeholder="Or type a different title..."
                 bind:value={pendingTitle}
                 disabled={uploading}
+                onkeydown={(e) => e.key === "Enter" && handleManualSearch()}
               />
-            <button class="btn" onclick={() => doUpload(pendingTitle.trim())} disabled={uploading || !pendingTitle.trim()}>
+              <button class="btn" onclick={handleManualSearch} disabled={uploading || !pendingTitle.trim()}>
-              Upload
+                Search
               </button>
             </div>
-          <button class="btn" onclick={cancelUpload} disabled={uploading}>Cancel</button>
+          {:else}
+            {#if searchError}
+              <div class="status-msg error-msg">{searchError}</div>
+            {:else}
+              <p class="match-label">No matches found on IGDB. Enter a title manually:</p>
+            {/if}
+            <div class="upload-custom-row">
+              <input
+                type="text"
+                placeholder="Enter game title..."
+                bind:value={pendingTitle}
+                disabled={uploading}
+                onkeydown={(e) => e.key === "Enter" && doUpload(pendingTitle.trim())}
+              />
+              <button class="btn" onclick={() => doUpload(pendingTitle.trim())} disabled={uploading || !pendingTitle.trim()}>
+                {uploading ? "Uploading..." : "Upload"}
+              </button>
             </div>
+            <button class="btn btn-secondary" onclick={() => doUpload(pendingFileName)} disabled={uploading}>
+              Use filename: {pendingFileName}
+            </button>
+          {/if}
+        </div>
+
+        <button class="btn btn-cancel" onclick={cancelUpload} disabled={uploading}>Cancel</button>
       </div>
     </div>
   {/if}
@@ -127,7 +213,7 @@
       <p>Upload a DOS game ZIP to get started</p>
       <label class="btn btn-primary" style="margin-top: 16px;">
         Upload your first game
-        <input type="file" accept=".zip" class="hidden-input" onchange={handleUpload} />
+        <input type="file" accept=".zip" class="hidden-input" onchange={handleFileSelected} />
       </label>
     </div>
   {:else}
@@ -231,7 +317,8 @@
     font-size: 0.85rem;
   }
 
-  /* Upload dialog overlay */
+  /* ─── Upload Dialog ─────────────────────────────── */
+
   .upload-overlay {
     position: fixed;
     inset: 0;
@@ -247,8 +334,11 @@
     border: 1px solid var(--border);
     border-radius: var(--radius);
     padding: 24px;
-    max-width: 420px;
+    max-width: 480px;
     width: 100%;
+    max-height: 90vh;
+    display: flex;
+    flex-direction: column;
   }
   .upload-dialog h3 {
     margin-bottom: 4px;
@@ -258,14 +348,101 @@
   .upload-file-name {
     color: var(--text-dim);
     font-size: 0.85rem;
-    margin-bottom: 20px;
+    margin-bottom: 4px;
     word-break: break-all;
   }
-  .upload-dialog-actions {
+  .upload-dialog-body {
+    flex: 1;
+    overflow-y: auto;
+    margin: 16px 0;
     display: flex;
     flex-direction: column;
     gap: 10px;
   }
+  .match-label {
+    font-size: 0.85rem;
+    color: var(--text-dim);
+  }
+  .status-msg {
+    padding: 12px;
+    text-align: center;
+    color: var(--text-dim);
+    font-style: italic;
+  }
+  .status-msg.error-msg {
+    color: #ff6666;
+    font-style: normal;
+  }
+
+  /* IGDB results list inside dialog */
+  .upload-igdb-results {
+    display: flex;
+    flex-direction: column;
+    gap: 6px;
+    max-height: 240px;
+    overflow-y: auto;
+  }
+  .igdb-result {
+    display: flex;
+    gap: 10px;
+    align-items: center;
+    background: var(--surface-hover);
+    border: 1px solid var(--border);
+    border-radius: var(--radius-sm);
+    padding: 8px;
+    cursor: pointer;
+    text-align: left;
+    transition: border-color 0.15s;
+    width: 100%;
+  }
+  .igdb-result:hover {
+    border-color: var(--phosphor-dim);
+  }
+  .igdb-result:disabled {
+    opacity: 0.6;
+    cursor: wait;
+  }
+  .igdb-thumb {
+    width: 42px;
+    height: 56px;
+    object-fit: cover;
+    border-radius: 4px;
+    flex-shrink: 0;
+  }
+  .igdb-thumb-placeholder {
+    width: 42px;
+    height: 56px;
+    background: var(--surface);
+    border-radius: 4px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 1.2rem;
+    flex-shrink: 0;
+  }
+  .igdb-info {
+    flex: 1;
+    min-width: 0;
+  }
+  .igdb-info strong {
+    display: block;
+    font-size: 0.85rem;
+    color: var(--text-bright);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+  .igdb-meta {
+    font-size: 0.75rem;
+    color: var(--text-dim);
+  }
+  .igdb-dev {
+    display: block;
+    font-size: 0.7rem;
+    color: var(--text-dim);
+    margin-top: 1px;
+  }
+
   .upload-custom-row {
     display: flex;
     gap: 8px;
@@ -274,4 +451,19 @@
     flex: 1;
   }
 
+  .btn-cancel {
+    border-color: var(--border);
+    color: var(--text-dim);
+  }
+  .btn-cancel:hover {
+    border-color: var(--text-dim);
+    color: var(--text);
+  }
+  .btn-secondary {
+    border-color: var(--border);
+    color: var(--text);
+  }
+  .btn-secondary:hover {
+    border-color: var(--text-dim);
+  }
 </style>