Management UI: corpus delete, process panel, activity feed, diagnostics

- DELETE /api/training/corpus/{id} + delete button on training page,
  with confirmation dialog and recompute hint
- /api/system/tasks + floating process panel (bottom-left) showing
  active background tasks with live 3s polling
- /api/system/recent-activity derives a feed from cases, style_corpus,
  and last style_patterns run; sidebar on home page renders with
  relative timestamps
- /api/system/diagnostics + /#/diagnostics page showing DB health,
  row counts per table, active tasks, stuck documents (>10 min),
  failed extractions
- Cosmetic: signature phrase headline now prefers clean phrases over
  bracket-heavy templates for display

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

web/app.py

@@ -604,9 +604,21 @@ async def _compute_signature_phrases(conn) -> dict:
     total_decisions = await conn.fetchval("SELECT count(*) FROM style_corpus")
 
     if items:
-        top = items[0]
-        # Clean up for display: strip placeholder brackets and split alternatives
-        display = re.sub(r"\[[^\]]*\]", "", top["text"]).replace("  ", " ").strip()
+        # Pick the first item that's a relatively clean phrase, not a template
+        # (templates with many placeholders make bad display text)
+        top = None
+        for item in items[:5]:
+            text = item["text"]
+            placeholder_count = len(re.findall(r"\[[^\]]*\]", text))
+            if placeholder_count <= 1:
+                top = item
+                break
+        if top is None:
+            top = items[0]
+
+        # Clean up for display
+        display = re.sub(r"\[[^\]]*\]", "", top["text"])
+        display = re.sub(r"\s+", " ", display).strip(" .,:;\"'")
         display = display.split(" / ")[0].split(" או ")[0].strip(" .,:;\"'")
         if len(display) > 60:
             display = display[:57] + "..."
@@ -758,6 +770,19 @@ async def training_style_report():
     }
 
 
+@app.delete("/api/training/corpus/{corpus_id}")
+async def training_corpus_delete(corpus_id: str):
+    """Remove a decision from the style corpus."""
+    try:
+        cid = UUID(corpus_id)
+    except ValueError:
+        raise HTTPException(400, "invalid corpus_id")
+    result = await db.delete_from_style_corpus(cid)
+    if not result.get("deleted"):
+        raise HTTPException(404, result.get("reason", "not found"))
+    return result
+
+
 @app.get("/api/training/corpus")
 async def training_corpus_list():
     """List all decisions currently in the style corpus."""
@@ -786,6 +811,25 @@ async def training_corpus_list():
     ]
 
 
+@app.get("/api/system/tasks")
+async def system_tasks():
+    """List all active background tasks (from in-memory _progress dict)."""
+    items = []
+    for task_id, data in list(_progress.items()):
+        status = data.get("status", "unknown")
+        # Skip terminal states older than this request
+        if status in ("completed", "failed"):
+            continue
+        items.append({
+            "task_id": task_id,
+            "status": status,
+            "step": data.get("step", ""),
+            "filename": data.get("filename", ""),
+            "error": data.get("error", ""),
+        })
+    return {"active": items, "count": len(items)}
+
+
 @app.get("/api/progress/{task_id}")
 async def progress_stream(task_id: str):
     """SSE stream of processing progress."""
@@ -971,6 +1015,134 @@ async def api_processing_status():
     return json.loads(result)
 
 
+@app.get("/api/system/diagnostics")
+async def system_diagnostics():
+    """System health snapshot: DB counts, recent failures, task queue."""
+    pool = await db.get_pool()
+    async with pool.acquire() as conn:
+        db_ok = False
+        try:
+            await conn.fetchval("SELECT 1")
+            db_ok = True
+        except Exception:
+            pass
+
+        tables = {}
+        for t in ("cases", "documents", "document_chunks", "style_corpus", "style_patterns"):
+            try:
+                tables[t] = await conn.fetchval(f"SELECT count(*) FROM {t}")
+            except Exception:
+                tables[t] = None
+
+        # Documents that failed extraction or are stuck
+        failed_docs = await conn.fetch(
+            "SELECT d.id, d.title, d.extraction_status, d.created_at, "
+            "       c.case_number "
+            "FROM documents d LEFT JOIN cases c ON d.case_id = c.id "
+            "WHERE d.extraction_status IN ('failed', 'error') "
+            "ORDER BY d.created_at DESC LIMIT 20"
+        )
+        stuck_docs = await conn.fetch(
+            "SELECT d.id, d.title, d.extraction_status, d.created_at, "
+            "       c.case_number "
+            "FROM documents d LEFT JOIN cases c ON d.case_id = c.id "
+            "WHERE d.extraction_status IN ('pending', 'processing') "
+            "  AND d.created_at < now() - interval '10 minutes' "
+            "ORDER BY d.created_at DESC LIMIT 20"
+        )
+
+    active_tasks = [
+        {"task_id": tid, "filename": d.get("filename", ""),
+         "status": d.get("status", ""), "step": d.get("step", "")}
+        for tid, d in _progress.items()
+        if d.get("status") not in ("completed", "failed")
+    ]
+
+    return {
+        "db_ok": db_ok,
+        "tables": tables,
+        "failed_documents": [
+            {
+                "id": str(r["id"]),
+                "title": r["title"] or "",
+                "status": r["extraction_status"],
+                "case_number": r["case_number"] or "",
+                "created_at": r["created_at"].isoformat() if r["created_at"] else None,
+            }
+            for r in failed_docs
+        ],
+        "stuck_documents": [
+            {
+                "id": str(r["id"]),
+                "title": r["title"] or "",
+                "status": r["extraction_status"],
+                "case_number": r["case_number"] or "",
+                "created_at": r["created_at"].isoformat() if r["created_at"] else None,
+            }
+            for r in stuck_docs
+        ],
+        "active_tasks": active_tasks,
+    }
+
+
+@app.get("/api/system/recent-activity")
+async def system_recent_activity(limit: int = 8):
+    """Derive a feed of recent events from cases + style_corpus + style_patterns.
+
+    Each event has: type, label, timestamp, target.
+    """
+    pool = await db.get_pool()
+    events: list[dict] = []
+
+    async with pool.acquire() as conn:
+        # Recent cases
+        cases = await conn.fetch(
+            "SELECT case_number, title, created_at FROM cases "
+            "ORDER BY created_at DESC LIMIT $1", limit
+        )
+        for c in cases:
+            events.append({
+                "type": "case_created",
+                "label": f"תיק חדש: ערר {c['case_number']}",
+                "detail": c["title"] or "",
+                "timestamp": c["created_at"].isoformat() if c["created_at"] else None,
+                "target": f"/#/case/{c['case_number']}",
+            })
+
+        # Recent corpus additions
+        corpus = await conn.fetch(
+            "SELECT decision_number, created_at FROM style_corpus "
+            "ORDER BY created_at DESC LIMIT $1", limit
+        )
+        for r in corpus:
+            events.append({
+                "type": "corpus_added",
+                "label": f"החלטה נוספה לקורפוס: {r['decision_number'] or 'ללא מספר'}",
+                "detail": "",
+                "timestamp": r["created_at"].isoformat() if r["created_at"] else None,
+                "target": "/#/training",
+            })
+
+        # Last style analysis run (if any)
+        last_pattern = await conn.fetchrow(
+            "SELECT created_at FROM style_patterns "
+            "ORDER BY created_at DESC LIMIT 1"
+        )
+        if last_pattern and last_pattern["created_at"]:
+            count = await conn.fetchval("SELECT count(*) FROM style_patterns")
+            events.append({
+                "type": "analysis_run",
+                "label": f"ניתוח סגנון — {count} דפוסים חולצו",
+                "detail": "",
+                "timestamp": last_pattern["created_at"].isoformat(),
+                "target": "/#/style-report",
+            })
+
+    # Sort by timestamp desc, take top N
+    events.sort(key=lambda e: e["timestamp"] or "", reverse=True)
+    return {"events": events[:limit]}
+
+
 # ── Workflow API — outcome, direction, claims, QA, learning ──────
 
 

web/static/index.html

@@ -396,6 +396,71 @@ header nav a.active::after {
   font-style: italic;
 }
 
+/* Home layout: main + activity sidebar */
+.home-grid {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) 280px;
+  gap: var(--space-6);
+}
+.home-main { min-width: 0; }
+.home-sidebar {
+  background: var(--color-parchment);
+  border: 1px solid var(--color-rule);
+  border-radius: var(--radius-lg);
+  padding: var(--space-5);
+  height: fit-content;
+  position: sticky;
+  top: var(--space-5);
+}
+.home-aside-title {
+  font-size: var(--text-xs);
+  text-transform: uppercase;
+  letter-spacing: 0.12em;
+  color: var(--color-gold-deep);
+  font-weight: 700;
+  margin-bottom: var(--space-4);
+  padding-bottom: var(--space-3);
+  border-bottom: 1px solid var(--color-gold);
+}
+
+/* Activity feed */
+.activity-feed { display: flex; flex-direction: column; gap: var(--space-3); }
+.activity-item {
+  padding: var(--space-3);
+  background: var(--color-surface);
+  border: 1px solid var(--color-rule-soft);
+  border-radius: var(--radius);
+  font-size: 0.82em;
+  transition: all var(--t);
+  cursor: pointer;
+  border-right: 3px solid var(--color-gold);
+}
+.activity-item:hover {
+  box-shadow: var(--shadow-sm);
+  border-right-color: var(--color-gold-deep);
+}
+.activity-label {
+  color: var(--color-navy);
+  font-weight: 600;
+  line-height: 1.4;
+  margin-bottom: 4px;
+}
+.activity-detail {
+  color: var(--color-ink-muted);
+  font-size: 0.9em;
+  line-height: 1.4;
+  margin-bottom: 4px;
+}
+.activity-time {
+  color: var(--color-ink-light);
+  font-size: 0.78em;
+}
+.activity-icon { font-size: 0.9em; margin-left: 4px; }
+
+@media (max-width: 1000px) {
+  .home-grid { grid-template-columns: 1fr; }
+  .home-sidebar { position: static; }
+}
 @media (max-width: 800px) {
   .kpi-row { grid-template-columns: repeat(2, 1fr); }
   .home-hero { flex-direction: column; align-items: flex-start; gap: var(--space-4); }
@@ -556,6 +621,140 @@ header nav a.active::after {
   border-color: var(--color-success);
 }
 
+/* Processing visibility panel (floating bottom-right) */
+.process-panel {
+  position: fixed;
+  bottom: var(--space-5);
+  left: var(--space-5);
+  width: 320px;
+  max-height: 60vh;
+  background: var(--color-surface);
+  border-radius: var(--radius-lg);
+  box-shadow: var(--shadow-lg);
+  border: 1px solid var(--color-gold);
+  overflow: hidden;
+  z-index: 900;
+  animation: fadeSlideUp 0.35s var(--ease-out);
+}
+@keyframes fadeSlideUp {
+  from { opacity: 0; transform: translateY(20px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+.process-panel.collapsed .process-panel-body { display: none; }
+.process-panel-header {
+  padding: 12px 16px;
+  background: var(--color-navy);
+  color: var(--color-parchment);
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  border-bottom: 2px solid var(--color-gold);
+}
+.process-panel-title {
+  font-weight: 600;
+  font-size: 0.9em;
+  flex: 1;
+}
+.process-panel-count {
+  background: var(--color-gold);
+  color: var(--color-navy);
+  padding: 2px 10px;
+  border-radius: var(--radius-pill);
+  font-size: 0.78em;
+  font-weight: 700;
+  min-width: 24px;
+  text-align: center;
+}
+.process-panel .btn-icon {
+  color: var(--color-parchment);
+  font-size: 1.3em;
+  line-height: 1;
+  padding: 0 8px;
+}
+.process-panel .btn-icon:hover {
+  color: var(--color-gold-soft);
+  background: transparent;
+}
+.process-panel-body {
+  padding: 10px 14px;
+  max-height: calc(60vh - 50px);
+  overflow-y: auto;
+}
+.process-item {
+  padding: 10px 12px;
+  background: var(--color-cream);
+  border-radius: var(--radius);
+  margin-bottom: 6px;
+  font-size: 0.82em;
+  border-right: 3px solid var(--color-gold);
+}
+.process-item:last-child { margin-bottom: 0; }
+.process-item-name {
+  font-weight: 500;
+  color: var(--color-navy);
+  margin-bottom: 4px;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+.process-item-status {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  color: var(--color-ink-muted);
+  font-size: 0.92em;
+}
+
+/* Diagnostics page */
+.diag-pill {
+  display: inline-block;
+  padding: 3px 12px;
+  border-radius: var(--radius-pill);
+  font-size: 0.78em;
+  font-weight: 600;
+  margin-right: auto;
+}
+.diag-pill.ok { background: var(--color-success-bg); color: var(--color-success); }
+.diag-pill.error { background: var(--color-danger-bg); color: var(--color-danger); }
+.diag-stats-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
+  gap: var(--space-4);
+}
+.diag-stat {
+  padding: var(--space-4);
+  background: var(--color-cream);
+  border-radius: var(--radius);
+  border-right: 3px solid var(--color-gold);
+}
+.diag-stat-label {
+  font-size: var(--text-xs);
+  text-transform: uppercase;
+  letter-spacing: 0.08em;
+  color: var(--color-ink-muted);
+  font-weight: 600;
+  margin-bottom: 4px;
+}
+.diag-stat-value {
+  font-size: var(--text-2xl);
+  font-weight: 800;
+  color: var(--color-navy);
+  line-height: 1;
+}
+.diag-row {
+  padding: 10px 14px;
+  background: var(--color-cream);
+  border-radius: var(--radius);
+  margin-bottom: 6px;
+  font-size: 0.86em;
+  border-right: 3px solid var(--color-rule);
+}
+.diag-row:last-child { margin-bottom: 0; }
+.diag-row-error { border-right-color: var(--color-danger); background: var(--color-danger-bg); }
+.diag-row-warn { border-right-color: var(--color-warn); background: var(--color-warn-bg); }
+.diag-row-title { font-weight: 600; color: var(--color-navy); margin-bottom: 2px; }
+.diag-row-meta { font-size: 0.88em; color: var(--color-ink-muted); }
+
 /* ── Local files (research, drafts, proofread) ───────── */
 .local-file-group { margin-bottom: 12px; }
 .local-file-group-header { font-size: 0.82em; font-weight: 600; color: #666; margin-bottom: 6px; padding-bottom: 4px; border-bottom: 1px solid #eee; }
@@ -696,7 +895,15 @@ header nav a.active::after {
   background: #f7f7f7; font-weight: 600; color: #555;
   font-size: 0.78em; text-transform: uppercase;
 }
-.corpus-table tr:hover td { background: #fafafa; }
+.corpus-table tr:hover td { background: var(--color-cream); }
+.btn-icon {
+  background: transparent; border: none; cursor: pointer;
+  color: var(--color-ink-light); font-size: 1.05em;
+  padding: 6px 8px; border-radius: var(--radius);
+  transition: all var(--t);
+}
+.btn-icon:hover { color: var(--color-navy); background: var(--color-cream-deep); }
+.btn-icon-danger:hover { color: var(--color-danger); background: var(--color-danger-bg); }
 .cat-tag {
   display: inline-block; padding: 2px 8px; margin: 0 2px;
   background: #e3f2fd; color: #1565c0; border-radius: 10px;
@@ -1019,6 +1226,7 @@ header nav a.active::after {
     <a href="#/training" id="navTraining">אימון סגנון</a>
     <a href="#/style-report" id="navStyleReport">הסגנון שלי</a>
     <a href="#/skills" id="navSkills">Skills</a>
+    <a href="#/diagnostics" id="navDiagnostics">מצב מערכת</a>
   </nav>
 </header>
 
@@ -1058,13 +1266,21 @@ header nav a.active::after {
       </div>
     </div>
 
-    <div class="divider-gold"></div>
-
-    <div class="page-header">
-      <h2>תיקים פעילים</h2>
-    </div>
-    <div class="case-grid" id="caseGrid">
-      <div class="empty">טוען תיקים...</div>
+    <div class="home-grid">
+      <div class="home-main">
+        <div class="page-header">
+          <h2>תיקים פעילים</h2>
+        </div>
+        <div class="case-grid" id="caseGrid">
+          <div class="empty">טוען תיקים...</div>
+        </div>
+      </div>
+      <aside class="home-sidebar">
+        <h3 class="home-aside-title">פעילות אחרונה</h3>
+        <div class="activity-feed" id="activityFeed">
+          <div class="empty" style="font-size:0.82em;padding:20px">טוען...</div>
+        </div>
+      </aside>
     </div>
   </div>
 
@@ -1434,6 +1650,17 @@ header nav a.active::after {
 
     </div>
   </div>
+
+  <!-- ══ Page: Diagnostics ══ -->
+  <div class="page" id="page-diagnostics">
+    <div class="page-header">
+      <h2>מצב מערכת</h2>
+      <button class="btn btn-ghost btn-sm" onclick="loadDiagnostics()">רענן</button>
+    </div>
+    <div id="diagnosticsContent">
+      <div class="empty">טוען...</div>
+    </div>
+  </div>
 </div>
 
 <!-- Modal for pattern examples -->
@@ -1456,6 +1683,16 @@ header nav a.active::after {
 
 <div class="toast" id="toast"></div>
 
+<!-- Processing visibility panel (floating) -->
+<div class="process-panel" id="processPanel" style="display:none">
+  <div class="process-panel-header">
+    <span class="process-panel-title">עיבוד פעיל</span>
+    <span class="process-panel-count" id="processPanelCount">0</span>
+    <button class="btn-icon" onclick="toggleProcessPanel()" title="הסתר">−</button>
+  </div>
+  <div class="process-panel-body" id="processPanelBody"></div>
+</div>
+
 <script>
 const API = '/api';
 let currentCaseNumber = '';
@@ -1518,13 +1755,22 @@ function handleRoute() {
     document.getElementById('navStyleReport').classList.add('active');
     subtitle = 'פורטרט הסגנון שלי';
     loadStyleReport();
+  } else if (hash === '#/diagnostics') {
+    document.getElementById('page-diagnostics').classList.add('active');
+    document.getElementById('navDiagnostics').classList.add('active');
+    subtitle = 'מצב מערכת';
+    loadDiagnostics();
   }
 
   document.getElementById('pageSubtitle').textContent = subtitle;
 }
 
 window.addEventListener('hashchange', handleRoute);
-window.addEventListener('load', () => { handleRoute(); loadStatus(); });
+window.addEventListener('load', () => {
+  handleRoute();
+  loadStatus();
+  startProcessPanelPolling();
+});
 
 // ── Case List ────────────────────────────────────────────
 async function loadCaseList() {
@@ -2268,31 +2514,215 @@ async function loadStatus() {
   } catch (e) {}
 }
 
+// ── Diagnostics Page ─────────────────────────────────
+
+async function loadDiagnostics() {
+  const container = document.getElementById('diagnosticsContent');
+  if (!container) return;
+  container.innerHTML = '<div class="empty">טוען...</div>';
+  try {
+    const res = await fetch(API + '/system/diagnostics');
+    const data = await res.json();
+
+    const dbBadge = data.db_ok
+      ? '<span class="diag-pill ok">✓ מחובר</span>'
+      : '<span class="diag-pill error">✕ תקלה</span>';
+
+    const tablesHtml = Object.entries(data.tables).map(([name, count]) => {
+      const label = {
+        cases: 'תיקים',
+        documents: 'מסמכים',
+        document_chunks: 'קטעים',
+        style_corpus: 'קורפוס סגנון',
+        style_patterns: 'דפוסים',
+      }[name] || name;
+      const val = count === null ? '⚠️' : count.toLocaleString('he-IL');
+      return `<div class="diag-stat"><div class="diag-stat-label">${esc(label)}</div><div class="diag-stat-value">${val}</div></div>`;
+    }).join('');
+
+    const failedHtml = (data.failed_documents || []).map(d => `
+      <div class="diag-row diag-row-error">
+        <div class="diag-row-title">${esc(d.title || '(ללא שם)')}</div>
+        <div class="diag-row-meta">
+          ${d.case_number ? `תיק ${esc(d.case_number)} · ` : ''}
+          סטטוס: <strong>${esc(d.status)}</strong>
+        </div>
+      </div>
+    `).join('') || '<div class="empty" style="padding:16px">אין כישלונות</div>';
+
+    const stuckHtml = (data.stuck_documents || []).map(d => `
+      <div class="diag-row diag-row-warn">
+        <div class="diag-row-title">${esc(d.title || '(ללא שם)')}</div>
+        <div class="diag-row-meta">
+          ${d.case_number ? `תיק ${esc(d.case_number)} · ` : ''}
+          ${esc(d.status)} מאז ${formatRelativeTime(d.created_at)}
+        </div>
+      </div>
+    `).join('') || '<div class="empty" style="padding:16px">אין מסמכים תקועים</div>';
+
+    const activeHtml = (data.active_tasks || []).map(t => `
+      <div class="diag-row">
+        <div class="diag-row-title">${esc(t.filename || t.task_id)}</div>
+        <div class="diag-row-meta">${esc(STEP_LABELS[t.step] || STEP_LABELS[t.status] || t.status)}</div>
+      </div>
+    `).join('') || '<div class="empty" style="padding:16px">אין משימות פעילות</div>';
+
+    container.innerHTML = `
+      <div class="card">
+        <div class="card-header">בריאות בסיס נתונים ${dbBadge}</div>
+        <div class="card-body">
+          <div class="diag-stats-grid">${tablesHtml}</div>
+        </div>
+      </div>
+
+      <div class="card">
+        <div class="card-header">משימות פעילות ברקע</div>
+        <div class="card-body">${activeHtml}</div>
+      </div>
+
+      <div class="card">
+        <div class="card-header">מסמכים תקועים (יותר מ-10 דקות)</div>
+        <div class="card-body">${stuckHtml}</div>
+      </div>
+
+      <div class="card">
+        <div class="card-header">מסמכים שכשלו</div>
+        <div class="card-body">${failedHtml}</div>
+      </div>
+    `;
+  } catch (e) {
+    container.innerHTML = `<div class="empty">שגיאה בטעינה: ${esc(e.message)}</div>`;
+  }
+}
+
+// ── Processing Visibility Panel ──────────────────────
+
+let _processPollTimer = null;
+
+function startProcessPanelPolling() {
+  if (_processPollTimer) return;
+  pollProcessPanel();
+  _processPollTimer = setInterval(pollProcessPanel, 3000);
+}
+
+async function pollProcessPanel() {
+  try {
+    const res = await fetch(API + '/system/tasks');
+    const data = await res.json();
+    renderProcessPanel(data.active || []);
+  } catch (e) {}
+}
+
+const STEP_LABELS = {
+  queued: 'בתור',
+  processing: 'מעבד',
+  proofreading: 'הגהה',
+  saving: 'שומר',
+  corpus: 'קורפוס',
+  chunking: 'פיצול',
+  embedding: 'embeddings',
+  validating: 'מאמת',
+  copying: 'מעתיק',
+  registering: 'רושם',
+  extracting: 'חילוץ טקסט',
+};
+
+function renderProcessPanel(items) {
+  const panel = document.getElementById('processPanel');
+  const body = document.getElementById('processPanelBody');
+  const count = document.getElementById('processPanelCount');
+  if (!panel) return;
+
+  if (!items.length) {
+    panel.style.display = 'none';
+    return;
+  }
+  panel.style.display = '';
+  count.textContent = items.length;
+  body.innerHTML = items.map(t => {
+    const label = STEP_LABELS[t.step] || STEP_LABELS[t.status] || t.status;
+    const name = t.filename || t.task_id;
+    return `
+      <div class="process-item">
+        <div class="process-item-name">${esc(name)}</div>
+        <div class="process-item-status">
+          <span class="mini-spinner"></span>
+          <span>${esc(label)}</span>
+        </div>
+      </div>
+    `;
+  }).join('');
+}
+
+function toggleProcessPanel() {
+  const panel = document.getElementById('processPanel');
+  panel.classList.toggle('collapsed');
+}
+
 async function loadKPIs() {
-  // Home dashboard KPI tiles
+  // Home dashboard KPI tiles + activity feed
   const casesEl = document.getElementById('kpiCases');
-  const corpusEl = document.getElementById('kpiCorpus');
-  const patternsEl = document.getElementById('kpiPatterns');
-  const procEl = document.getElementById('kpiProcessing');
   if (!casesEl) return;
 
   try {
-    const [statusRes, corpusRes, patternsRes] = await Promise.all([
+    const [statusRes, corpusRes, patternsRes, activityRes] = await Promise.all([
       fetch(API + '/processing-status').then(r => r.json()).catch(() => ({})),
       fetch(API + '/training/corpus').then(r => r.json()).catch(() => []),
       fetch(API + '/training/patterns').then(r => r.json()).catch(() => ({total: 0})),
+      fetch(API + '/system/recent-activity').then(r => r.json()).catch(() => ({events: []})),
     ]);
-    casesEl.textContent = statusRes.cases ?? '0';
-    corpusEl.textContent = corpusRes.length || '0';
-    patternsEl.textContent = patternsRes.total || '0';
-    // Count decisions currently being processed
+    document.getElementById('kpiCases').textContent = statusRes.cases ?? '0';
+    document.getElementById('kpiCorpus').textContent = corpusRes.length || '0';
+    document.getElementById('kpiPatterns').textContent = patternsRes.total || '0';
     const procCount = (statusRes.processing_documents ?? statusRes.processing ?? 0);
-    procEl.textContent = procCount || '0';
+    document.getElementById('kpiProcessing').textContent = procCount || '0';
+
+    renderActivityFeed(activityRes.events || []);
   } catch (e) {
     console.error('KPI load failed', e);
   }
 }
 
+const ACTIVITY_ICONS = {
+  case_created: '📁',
+  corpus_added: '📚',
+  analysis_run: '✨',
+};
+
+function formatRelativeTime(iso) {
+  if (!iso) return '';
+  const then = new Date(iso);
+  const diffMs = Date.now() - then.getTime();
+  const min = Math.floor(diffMs / 60000);
+  if (min < 1) return 'עכשיו';
+  if (min < 60) return `לפני ${min} דקות`;
+  const hr = Math.floor(min / 60);
+  if (hr < 24) return `לפני ${hr} שעות`;
+  const days = Math.floor(hr / 24);
+  if (days < 30) return `לפני ${days} ימים`;
+  return then.toLocaleDateString('he-IL');
+}
+
+function renderActivityFeed(events) {
+  const feed = document.getElementById('activityFeed');
+  if (!feed) return;
+  if (!events.length) {
+    feed.innerHTML = '<div class="empty" style="font-size:0.82em;padding:20px">עדיין אין פעילות</div>';
+    return;
+  }
+  feed.innerHTML = events.map(e => {
+    const icon = ACTIVITY_ICONS[e.type] || '•';
+    const target = e.target || '#/';
+    return `
+      <div class="activity-item" onclick="location.hash='${esc(target.replace(/^\/?#/, ''))}'">
+        <div class="activity-label"><span class="activity-icon">${icon}</span>${esc(e.label)}</div>
+        ${e.detail ? `<div class="activity-detail">${esc(e.detail)}</div>` : ''}
+        <div class="activity-time">${formatRelativeTime(e.timestamp)}</div>
+      </div>
+    `;
+  }).join('');
+}
+
 // ── Helpers ──────────────────────────────────────────────
 function esc(s) {
   if (!s) return '';
@@ -3108,6 +3538,24 @@ function renderContribution(contrib) {
   }).join('');
 }
 
+async function deleteCorpusItem(id, decisionNumber) {
+  if (!confirm(`להסיר את החלטה ${decisionNumber || '(ללא מספר)'} מהקורפוס?\n\nפעולה זו בלתי הפיכה — הדפוסים הקשורים להחלטה עצמה יישארו, אבל עקומת הלמידה תחושב מחדש בריצה הבאה של "נתח קורפוס".`)) {
+    return;
+  }
+  try {
+    const res = await fetch(API + '/training/corpus/' + encodeURIComponent(id), { method: 'DELETE' });
+    if (!res.ok) {
+      const err = await res.text();
+      throw new Error(err);
+    }
+    toast('ההחלטה הוסרה מהקורפוס', 'success');
+    loadCorpusList();
+    loadKPIs();
+  } catch (e) {
+    toast('שגיאה במחיקה: ' + e.message, 'error');
+  }
+}
+
 async function loadCorpusList() {
   const container = document.getElementById('corpusList');
   const count = document.getElementById('corpusCount');
@@ -3122,7 +3570,7 @@ async function loadCorpusList() {
     container.innerHTML = `
       <table class="corpus-table">
         <thead>
-          <tr><th>מספר</th><th>תאריך</th><th>קטגוריות</th><th>תווים</th><th>נוצר</th></tr>
+          <tr><th>מספר</th><th>תאריך</th><th>קטגוריות</th><th>תווים</th><th>נוצר</th><th></th></tr>
         </thead>
         <tbody>
           ${rows.map(r => `
@@ -3132,6 +3580,7 @@ async function loadCorpusList() {
               <td>${(r.subject_categories || []).map(c => `<span class="cat-tag">${esc(c)}</span>`).join('')}</td>
               <td>${r.chars.toLocaleString('he-IL')}</td>
               <td>${esc(r.created_at ? r.created_at.substring(0, 10) : '—')}</td>
+              <td><button class="btn-icon btn-icon-danger" title="הסר מהקורפוס" onclick="deleteCorpusItem('${esc(r.id)}', '${esc(r.decision_number || '')}')">🗑</button></td>
             </tr>
           `).join('')}
         </tbody>