Add server-side /api/rescan upload pipeline and Home UI.

Accept ZIP/single help files, process with help_processor into OUTPUT_DIR+Postgres, pollable jobs, optional RESCAN_TOKEN.

Co-authored-by: Cursor <cursoragent@cursor.com>

webapp/templates/viewer.html

@@ -195,12 +195,23 @@
 
   .sep { color: var(--border); margin: 0 4px; }
 
-  .home-wrap { display: flex; justify-content: center; align-items: flex-start; padding: 24px; }
+  .home-wrap { display: flex; flex-direction: column; align-items: center; gap: 20px; padding: 24px; }
   .home-wrap img {
-    max-width: 100%; max-height: calc(100vh - 200px);
-    border: 1px solid var(--border); border-radius: var(--radius-lg);
-    box-shadow: 0 4px 16px rgba(0,0,0,.06);
+    max-width: min(920px, 100%); height: auto; border-radius: var(--radius-lg);
+    border: 1px solid var(--border); box-shadow: 0 8px 24px rgba(0,0,0,.08);
   }
+  .rescan-box {
+    width: min(640px, 100%);
+    background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg);
+    padding: 16px 18px;
+  }
+  .rescan-box h3 {
+    font-family: var(--mono); font-size: 12px; color: var(--muted);
+    letter-spacing: .06em; text-transform: uppercase; margin-bottom: 12px;
+  }
+  .rescan-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 10px; }
+  .rescan-box input[type=file] { font-size: 12px; }
+  .rescan-status { font-family: var(--mono); font-size: 12px; color: var(--muted); min-height: 1.2em; }
 </style>
 </head>
 <body>
@@ -222,7 +233,18 @@
 
 {% if home_url %}
 <div id="tab-home" class="panel active">
-  <div class="home-wrap"><img src="{{ home_url }}" alt="Home"></div>
+  <div class="home-wrap">
+    <img src="{{ home_url }}" alt="Home">
+    <div class="rescan-box">
+      <h3>Rescan — качи help файлове</h3>
+      <div class="rescan-row">
+        <input type="file" id="rescan-file" accept=".zip,.docx,.doc,.html,.htm,.pdf,.txt">
+        <label class="stats"><input type="checkbox" id="rescan-force"> force</label>
+        <button class="btn-primary" id="rescan-btn" onclick="startRescan()">Старт</button>
+      </div>
+      <div class="rescan-status" id="rescan-status">ZIP или един файл → обработка на сървъра → БД + Output</div>
+    </div>
+  </div>
 </div>
 {% endif %}
 
@@ -307,6 +329,58 @@ function switchTab(name) {
   if (name === 'generator') renderGenerator();
 }
 
+async function startRescan() {
+  const inp = document.getElementById('rescan-file');
+  const st  = document.getElementById('rescan-status');
+  const btn = document.getElementById('rescan-btn');
+  if (!inp.files || !inp.files[0]) {
+    st.textContent = 'Избери файл първо.';
+    return;
+  }
+  const fd = new FormData();
+  fd.append('file', inp.files[0]);
+  fd.append('prefix', {{ (prefix or 'RIP') | tojson }});
+  fd.append('force', document.getElementById('rescan-force').checked ? 'true' : 'false');
+  const token = localStorage.getItem('RESCAN_TOKEN') || '';
+  if (token) fd.append('token', token);
+
+  btn.disabled = true;
+  st.textContent = 'Качване...';
+  try {
+    const headers = {};
+    if (token) headers['X-Rescan-Token'] = token;
+    const res = await fetch('/api/rescan', { method: 'POST', body: fd, headers });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) throw new Error(data.detail || ('HTTP ' + res.status));
+    st.textContent = 'Job ' + data.job_id + ' — обработка...';
+    await pollRescan(data.job_id);
+  } catch (e) {
+    st.textContent = 'Грешка: ' + e.message;
+  } finally {
+    btn.disabled = false;
+  }
+}
+
+async function pollRescan(jobId) {
+  const st = document.getElementById('rescan-status');
+  for (let i = 0; i < 180; i++) {
+    await new Promise(r => setTimeout(r, 2000));
+    const res = await fetch('/api/rescan/' + encodeURIComponent(jobId));
+    const data = await res.json();
+    st.textContent = data.status + (data.message ? ' — ' + data.message : '');
+    if (data.status === 'done') {
+      st.textContent = 'Готово. Презареждане...';
+      location.reload();
+      return;
+    }
+    if (data.status === 'error') {
+      st.textContent = 'Грешка: ' + (data.message || 'unknown');
+      return;
+    }
+  }
+  st.textContent = 'Timeout — провери /api/rescan/' + jobId;
+}
+
 // ── EDITOR ────────────────────────────
 function renderEditor(rows) {
   const tbody = document.getElementById('editor-body');