diff --git a/rust-engine/DEMODETAILS.md b/rust-engine/DEMODETAILS.md
new file mode 100644
index 0000000..a8a2572
--- /dev/null
+++ b/rust-engine/DEMODETAILS.md
@@ -0,0 +1,48 @@
+## Demo Runbook: ISS Systems (3-minute showcase)
+
+This demo uses ~20 public NASA PDFs covering ISS Electrical Power, ECLSS, Avionics, and Structures. They live in `rust-engine/demo-data` and are automatically ingested via the server.
+
+### 1) Seed demo data (one-click)
+
+- Trigger ingestion (cloud): POST `/api/files/import-demo` (UI button available when `?debug=1` is present)
+- The backend copies PDFs into storage, inserts DB rows with `pending_analysis = true`, and the FileWorker processes them.
+- Processing pipeline per file:
+  - Gemini Flash → comprehensive description (facts/keywords/components)
+  - Gemini Pro → deep vector graph data (keywords/use cases/relationships)
+  - Embed + upsert to Qdrant, mark file ready (`pending_analysis = false`)
+
+Tip: You can list files at `GET /api/files/list`. Ready files will start to appear as analysis completes.
+
+### 2) Showcase flow (suggested script)
+
+1. “We ingested real ISS technical PDFs. The worker analyzes each file with Gemini and builds vector graph data for robust retrieval.”
+2. Show the files list. Point out a couple of recognizable titles.
+3. Run two queries (examples below) and open their results (the app calls `POST /api/query/create` then polls `/api/query/result`).
+4. Highlight the grounded answer: ‘related_files’, ‘relationships’, and ‘final_answer’ fields.
+5. Call out that if info isn’t present in the PDFs, the system explicitly states uncertainty (no guessing).
+
+### 3) Demo queries (pick 2–3)
+
+- Electrical Power System (EPS)
+  - “Trace the power path from the P6 solar array to the BCDU. Where are likely ground fault points?”
+  - “What is the role of the DC Switching Unit in array power management?”
+- ECLSS
+  - “Which modules are part of water recovery, and how does the Oxygen Generator Assembly interface?”
+  - “Summarize the CDRA cycle and downstream subsystems it impacts.”
+- C&DH / Avionics
+  - “In the US Lab, a blue/white wire connects to MDM ‘LAB1’. What are possible data pathways?”
+  - “Describe the onboard LAN segments and links to MDMs.”
+- Structures / Robotics
+  - “Where does the Latching End Effector connect on S1 truss?”
+  - “What is the Mobile Transporter’s role in SSRMS operations?”
+
+### 4) Reset/refresh (optional)
+
+- POST `/api/files/import-demo?force=1` to overwrite by filename and re-queue analysis.
+
+### Appendix: Example sources
+
+- EPS: 20110014867, 20040171627, 19900007297, 20120002931, 20100029672
+- ECLSS: 20170008316, 20070019910, 20080039691, 20100029191, 20070019929
+- C&DH: 20000012543, 20100029690, 19950014639, 20010023477, 19980227289
+- Structures/Robotics: 20020054238, 20010035542, 20140001008, Destiny fact sheet, 20020088289
\ No newline at end of file
diff --git a/rust-engine/README.md b/rust-engine/README.md
index 32f377a..1f815c4 100644
--- a/rust-engine/README.md
+++ b/rust-engine/README.md
@@ -66,6 +66,14 @@
 1. docker compose up -d mysql qdrant
 2. set env DATABASE_URL and QDRANT_URL
 3. cargo run
+4. (optional) import demo PDFs
+   - Ensure demo files are located in `rust-engine/demo-data` (default) or set `DEMO_DATA_DIR` env var to a folder containing PDFs.
+   - Call the endpoint:
+     - POST <http://localhost:8000/api/files/import-demo>
+     - Optional query `?force=1` to overwrite existing by filename
+   - Or run the PowerShell helper:
+     - `./scripts/import_demo.ps1` (adds all PDFs in demo-data)
+     - `./scripts/import_demo.ps1 -Force` (overwrite existing)
 
 ## Notes
 
diff --git a/rust-engine/demo-data/132-1-Final.pdf b/rust-engine/demo-data/132-1-Final.pdf
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diff --git a/rust-engine/demo-data/ISwSIS Software Standard_NASA-102020_Draft.docx.pdf b/rust-engine/demo-data/ISwSIS Software Standard_NASA-102020_Draft.docx.pdf
new file mode 100644
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diff --git a/rust-engine/scripts/import_demo.ps1 b/rust-engine/scripts/import_demo.ps1
new file mode 100644
index 0000000..e69de29
diff --git a/rust-engine/src/api.rs b/rust-engine/src/api.rs
index 55d1a06..c531f36 100644
--- a/rust-engine/src/api.rs
+++ b/rust-engine/src/api.rs
@@ -16,6 +16,17 @@ struct DeleteQuery {
 pub fn routes(pool: MySqlPool) -> impl Filter<Extract = impl Reply, Error = Rejection> + Clone {
     let pool_filter = warp::any().map(move || pool.clone());
 
+    // Import demo files from demo-data directory
+    let import_demo = warp::path!("files" / "import-demo")
+        .and(warp::post())
+        .and(
+            warp::query::<std::collections::HashMap<String, String>>()
+                .or(warp::any().map(|| std::collections::HashMap::new()))
+                .unify()
+        )
+        .and(pool_filter.clone())
+        .and_then(handle_import_demo);
+
     // Upload file
     let upload = warp::path("files")
         .and(warp::post())
@@ -64,7 +75,7 @@ pub fn routes(pool: MySqlPool) -> impl Filter<Extract = impl Reply, Error = Reje
         .and(pool_filter.clone())
         .and_then(handle_cancel_query);
 
-    let api = upload.or(delete).or(list).or(create_q).or(status).or(result).or(cancel);
+    let api = upload.or(import_demo).or(delete).or(list).or(create_q).or(status).or(result).or(cancel);
     warp::path("api").and(api)
 }
 
@@ -123,6 +134,70 @@ async fn handle_upload(mut form: FormData, pool: MySqlPool) -> Result<impl Reply
     Ok(warp::reply::json(&serde_json::json!({"success": true})))
 }
 
+async fn handle_import_demo(params: std::collections::HashMap<String, String>, pool: MySqlPool) -> Result<impl Reply, Rejection> {
+    use std::fs;
+    use std::path::PathBuf;
+    let force = params.get("force").map(|v| v == "1" || v.eq_ignore_ascii_case("true")).unwrap_or(false);
+    let demo_dir = std::env::var("DEMO_DATA_DIR").unwrap_or_else(|_| "demo-data".to_string());
+    let base = std::env::current_dir().unwrap_or_else(|_| PathBuf::from("."));
+    let src_dir = base.join(demo_dir);
+    if !src_dir.exists() {
+        return Ok(warp::reply::json(&serde_json::json!({
+            "imported": 0,
+            "skipped": 0,
+            "error": format!("demo dir not found: {}", src_dir.display())
+        })));
+    }
+    let mut imported = 0;
+    let mut skipped = 0;
+    for entry in fs::read_dir(&src_dir).map_err(|_| warp::reject())? {
+        let entry = entry.map_err(|_| warp::reject())?;
+        let path = entry.path();
+        if path.extension().and_then(|e| e.to_str()).map(|e| e.eq_ignore_ascii_case("pdf")).unwrap_or(false) {
+            let filename = path.file_name().and_then(|n| n.to_str()).unwrap_or("unknown.pdf").to_string();
+
+            // check if exists
+            if !force {
+                if let Some(_) = sqlx::query("SELECT id FROM files WHERE filename = ?")
+                    .bind(&filename)
+                    .fetch_optional(&pool)
+                    .await
+                    .map_err(|_| warp::reject())? {
+                    skipped += 1;
+                    continue;
+                }
+            }
+
+            // read and save to storage
+            let data = fs::read(&path).map_err(|_| warp::reject())?;
+            let stored_path = storage::save_file(&filename, &data).map_err(|_| warp::reject())?;
+
+            // insert or upsert db record
+            let id = uuid::Uuid::new_v4().to_string();
+            if force {
+                let _ = sqlx::query("DELETE FROM files WHERE filename = ?")
+                    .bind(&filename)
+                    .execute(&pool)
+                    .await;
+            }
+            sqlx::query("INSERT INTO files (id, filename, path, description, pending_analysis, analysis_status) VALUES (?, ?, ?, ?, ?, 'Queued')")
+                .bind(&id)
+                .bind(&filename)
+                .bind(stored_path.to_str().unwrap())
+                .bind(Option::<String>::None)
+                .bind(true)
+                .execute(&pool)
+                .await
+                .map_err(|e| {
+                    tracing::error!("DB insert error: {}", e);
+                    warp::reject()
+                })?;
+            imported += 1;
+        }
+    }
+    Ok(warp::reply::json(&serde_json::json!({ "imported": imported, "skipped": skipped })))
+}
+
 async fn handle_delete(q: DeleteQuery, pool: MySqlPool) -> Result<impl Reply, Rejection> {
     if let Some(row) = sqlx::query("SELECT path FROM files WHERE id = ?")
         .bind(&q.id)
@@ -143,7 +218,7 @@ async fn handle_delete(q: DeleteQuery, pool: MySqlPool) -> Result<impl Reply, Re
 }
 
 async fn handle_list(pool: MySqlPool) -> Result<impl Reply, Rejection> {
-    let rows = sqlx::query("SELECT id, filename, path, description FROM files ORDER BY created_at DESC LIMIT 500")
+    let rows = sqlx::query("SELECT id, filename, path, description, pending_analysis, analysis_status FROM files ORDER BY created_at DESC LIMIT 500")
         .fetch_all(&pool)
         .await
         .map_err(|e| {
@@ -158,7 +233,16 @@ async fn handle_list(pool: MySqlPool) -> Result<impl Reply, Rejection> {
             let filename: String = r.get("filename");
             let path: String = r.get("path");
             let description: Option<String> = r.get("description");
-            serde_json::json!({"id": id, "filename": filename, "path": path, "description": description})
+            let pending: bool = r.get("pending_analysis");
+            let status: Option<String> = r.try_get("analysis_status").ok();
+            serde_json::json!({
+                "id": id,
+                "filename": filename,
+                "path": path,
+                "description": description,
+                "pending_analysis": pending,
+                "analysis_status": status
+            })
         })
         .collect();
 
diff --git a/web-app/Dockerfile b/web-app/Dockerfile
index 49f8ea8..9552c3f 100644
--- a/web-app/Dockerfile
+++ b/web-app/Dockerfile
@@ -6,4 +6,4 @@ RUN npm ci
 COPY . .
 RUN npm run format && npm run build
 EXPOSE 3000
-CMD ["npm", "run", "preview"]
+CMD ["node", "server.mjs"]
diff --git a/web-app/jsconfig.json b/web-app/jsconfig.json
index c48ffbb..604c23f 100644
--- a/web-app/jsconfig.json
+++ b/web-app/jsconfig.json
@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
-    "baseUrl": "./"
+    "baseUrl": "./",
+    "lib": ["es2015", "dom"]
   },
   "include": ["src"]
 }
diff --git a/web-app/server.mjs b/web-app/server.mjs
new file mode 100644
index 0000000..cca7665
--- /dev/null
+++ b/web-app/server.mjs
@@ -0,0 +1,44 @@
+import express from 'express';
+import path from 'node:path';
+import helmet from 'helmet';
+import cors from 'cors';
+import { fileURLToPath } from 'node:url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+const RUST_ENGINE_BASE = process.env.RUST_ENGINE_BASE || 'http://rust-engine:8000';
+
+app.use(helmet());
+app.use(cors());
+app.use(express.json());
+
+// Proxy minimal API needed by the UI to the rust-engine container
+app.post('/api/files/import-demo', async (req, res) => {
+  try {
+    const qs = req.url.includes('?') ? req.url.substring(req.url.indexOf('?')) : '';
+    const url = `${RUST_ENGINE_BASE}/api/files/import-demo${qs}`;
+    const upstream = await fetch(url, { method: 'POST' });
+    const text = await upstream.text();
+    res.status(upstream.status).type(upstream.headers.get('content-type') || 'application/json').send(text);
+  } catch (err) {
+    console.error('import-demo proxy failed:', err);
+    res.status(502).json({ error: 'proxy_failed' });
+  }
+});
+
+// Serve static frontend
+const distDir = path.resolve(__dirname, 'dist');
+app.use(express.static(distDir));
+
+// SPA fallback
+app.get('*', (req, res) => {
+  res.sendFile(path.join(distDir, 'index.html'));
+});
+
+app.listen(PORT, '0.0.0.0', () => {
+  console.log(`Web app server listening on http://0.0.0.0:${PORT}`);
+  console.log(`Proxying to rust engine at ${RUST_ENGINE_BASE}`);
+});
diff --git a/web-app/src/components/ui/chat/chat-header.jsx b/web-app/src/components/ui/chat/chat-header.jsx
index 89b5738..47bec26 100644
--- a/web-app/src/components/ui/chat/chat-header.jsx
+++ b/web-app/src/components/ui/chat/chat-header.jsx
@@ -1,14 +1,54 @@
-import React from "react";
+import React, { useMemo, useState } from "react";
+import { motion } from "motion/react";
+import { Rocket } from "lucide-react";
 
 export default function ChatHeader({ title = "Title of Chat" }) {
+  const isDebug = useMemo(() => {
+    const p = new URLSearchParams(window.location.search);
+    return p.get("debug") === "1";
+  }, []);
+  const [ingesting, setIngesting] = useState(false);
+  const [toast, setToast] = useState("");
+
+  async function triggerDemoIngest() {
+    try {
+      setIngesting(true);
+  const res = await fetch("/api/files/import-demo", { method: "POST" });
+      const json = await res.json().catch(() => ({}));
+      setToast(`Imported: ${json.imported ?? "?"}, Skipped: ${json.skipped ?? "?"}`);
+      setTimeout(() => setToast(""), 4000);
+    } catch (e) {
+      setToast("Import failed");
+      setTimeout(() => setToast(""), 4000);
+    } finally {
+      setIngesting(false);
+    }
+  }
   return (
     <div className="w-full flex justify-center">
       <header className="text-slate-100 fixed top-4 ">
-        <div>
+        <div className="flex items-center gap-3">
           <h1 className="text-lg font-semibold shadow-md shadow-indigo-600 bg-gray-900 px-6 py-2 rounded-4xl border-2 border-gray-800">
             {title}
           </h1>
+          {isDebug && (
+            <motion.button
+              onClick={triggerDemoIngest}
+              className="bg-gray-800 border-2 border-gray-700 rounded-xl px-3 py-2 flex items-center gap-2"
+              whileHover={{ scale: 1.05 }}
+              whileTap={{ scale: 0.95 }}
+              disabled={ingesting}
+            >
+              <Rocket size={16} />
+              {ingesting ? "Seeding…" : "Seed Demo Data"}
+            </motion.button>
+          )}
         </div>
+        {toast && (
+          <div className="mt-2 text-xs text-slate-300 bg-gray-800/80 border border-gray-700 rounded px-2 py-1 inline-block">
+            {toast}
+          </div>
+        )}
       </header>
     </div>
   );