UI: Dashboard + Ingest tabs showing full system progression

- Dashboard: live stats (datasets, rows, embeddings, HNSW, tools, cache)
  Architecture overview (6 capability areas)
  Build progression timeline (all 17 phases listed)
- Ingest tab: Postgres table browser + import, file upload info, inbox watcher
- System tab: existing health checks
- Starts on Dashboard for immediate overview
- No futures::executor in WASM — all async/await

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

crates/ui/assets/style.css

@@ -162,3 +162,46 @@ th {
 }
 td { padding: 8px 14px; border-bottom: 1px solid var(--border); }
 tr:hover td { background: var(--accent-glow); }
+
+/* Dashboard */
+.dashboard-hero { margin-bottom: 28px; }
+.dashboard-hero h2 { font-size: 32px; font-weight: 700; }
+
+.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; margin-bottom: 32px; }
+.stat-card {
+    background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
+    padding: 20px 16px; text-align: center;
+}
+.stat-card.accent { border-color: var(--accent); background: var(--accent-glow); }
+.stat-value { font-size: 28px; font-weight: 700; color: var(--text); }
+.stat-card.accent .stat-value { color: var(--accent); }
+.stat-label { font-size: 11px; color: var(--text-dim); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.05em; }
+
+.architecture-section, .phases-section { margin-bottom: 28px; }
+.architecture-section h3, .phases-section h3 { font-size: 16px; font-weight: 600; color: var(--text-dim); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.08em; }
+
+.arch-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
+.arch-card {
+    background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
+    padding: 14px; border-left: 3px solid var(--accent);
+}
+.arch-title { font-weight: 600; font-size: 13px; margin-bottom: 4px; color: var(--accent); }
+.arch-items { font-size: 11px; color: var(--text-dim); line-height: 1.6; }
+
+.phase-list { display: flex; flex-direction: column; gap: 2px; }
+.phase-item {
+    display: grid; grid-template-columns: 40px 180px 1fr; gap: 12px; align-items: center;
+    padding: 8px 12px; border-radius: 6px; font-size: 12px;
+    background: var(--surface); border-left: 3px solid var(--success);
+}
+.phase-num { font-weight: 700; color: var(--accent); text-align: center; }
+.phase-name { font-weight: 600; }
+.phase-detail { color: var(--text-dim); }
+
+/* Ingest */
+.table-list { margin-top: 12px; }
+.table-item {
+    display: flex; justify-content: space-between; align-items: center;
+    padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: 13px;
+}
+.table-item:hover { background: var(--accent-glow); }