feat: Phase 6, Device provisioning and deployment of updates on git-pull

backend/admin/router.py

@@ -0,0 +1,64 @@
+import asyncio
+import hashlib
+import hmac
+import logging
+
+from fastapi import APIRouter, HTTPException, Request
+
+from config import settings
+
+logger = logging.getLogger("admin.deploy")
+
+router = APIRouter(prefix="/api/admin", tags=["admin"])
+
+
+@router.post("/deploy")
+async def deploy(request: Request):
+    """Gitea webhook endpoint — pulls latest code and rebuilds Docker containers.
+
+    Gitea webhook configuration:
+      URL:          https://<your-domain>/api/admin/deploy
+      Secret token: value of DEPLOY_SECRET env var
+      Content-Type: application/json
+      Trigger:      Push events only (branch: main)
+
+    Add to VPS .env:
+      DEPLOY_SECRET=<random-strong-token>
+      DEPLOY_PROJECT_PATH=/home/bellsystems/bellsystems-cp
+    """
+    if not settings.deploy_secret:
+        raise HTTPException(status_code=503, detail="Deploy secret not configured on server")
+
+    # Gitea sends the HMAC-SHA256 of the request body in X-Gitea-Signature
+    sig_header = request.headers.get("X-Gitea-Signature", "")
+    body = await request.body()
+    expected_sig = hmac.new(
+        key=settings.deploy_secret.encode(),
+        msg=body,
+        digestmod=hashlib.sha256,
+    ).hexdigest()
+    if not hmac.compare_digest(sig_header, expected_sig):
+        raise HTTPException(status_code=403, detail="Invalid webhook signature")
+
+    logger.info("Auto-deploy triggered via Gitea webhook")
+
+    project_path = settings.deploy_project_path
+    cmd = f"cd {project_path} && git pull origin main && docker compose up -d --build"
+    try:
+        proc = await asyncio.create_subprocess_shell(
+            cmd,
+            stdout=asyncio.subprocess.PIPE,
+            stderr=asyncio.subprocess.STDOUT,
+        )
+        stdout, _ = await asyncio.wait_for(proc.communicate(), timeout=300)
+        output = stdout.decode(errors="replace") if stdout else ""
+
+        if proc.returncode != 0:
+            logger.error(f"Deploy failed (exit {proc.returncode}):\n{output}")
+            raise HTTPException(status_code=500, detail=f"Deploy script failed:\n{output[-500:]}")
+
+        logger.info(f"Deploy succeeded:\n{output[-300:]}")
+        return {"ok": True, "output": output[-1000:]}
+
+    except asyncio.TimeoutError:
+        raise HTTPException(status_code=504, detail="Deploy timed out after 300 seconds")

backend/config.py

@@ -29,10 +29,18 @@ class Settings(BaseSettings):
     built_melodies_storage_path: str = "./storage/built_melodies"
     firmware_storage_path: str = "./storage/firmware"
 
+    # Email (Resend)
+    resend_api_key: str = "re_placeholder_change_me"
+    email_from: str = "noreply@yourdomain.com"
+
     # App
     backend_cors_origins: str = '["http://localhost:5173"]'
     debug: bool = True
 
+    # Auto-deploy (Gitea webhook)
+    deploy_secret: str = ""
+    deploy_project_path: str = "/app"
+
     @property
     def cors_origins(self) -> List[str]:
         return json.loads(self.backend_cors_origins)

backend/main.py

@@ -16,6 +16,7 @@ from helpdesk.router import router as helpdesk_router
 from builder.router import router as builder_router
 from manufacturing.router import router as manufacturing_router
 from firmware.router import router as firmware_router
+from admin.router import router as admin_router
 from mqtt.client import mqtt_manager
 from mqtt import database as mqtt_db
 from melodies import service as melody_service
@@ -48,6 +49,7 @@ app.include_router(staff_router)
 app.include_router(builder_router)
 app.include_router(manufacturing_router)
 app.include_router(firmware_router)
+app.include_router(admin_router)
 
 
 @app.on_event("startup")

backend/manufacturing/audit.py

@@ -0,0 +1,41 @@
+import json
+import logging
+from mqtt.database import get_db
+
+logger = logging.getLogger("manufacturing.audit")
+
+
+async def log_action(
+    admin_user: str,
+    action: str,
+    serial_number: str | None = None,
+    detail: dict | None = None,
+):
+    """Write a manufacturing audit entry to SQLite.
+
+    action examples: batch_created, device_flashed, device_assigned, status_updated
+    """
+    try:
+        db = await get_db()
+        await db.execute(
+            """INSERT INTO mfg_audit_log (admin_user, action, serial_number, detail)
+               VALUES (?, ?, ?, ?)""",
+            (
+                admin_user,
+                action,
+                serial_number,
+                json.dumps(detail) if detail else None,
+            ),
+        )
+        await db.commit()
+    except Exception as e:
+        logger.error(f"Failed to write audit log: {e}")
+
+
+async def get_recent(limit: int = 20) -> list[dict]:
+    db = await get_db()
+    rows = await db.execute_fetchall(
+        "SELECT * FROM mfg_audit_log ORDER BY timestamp DESC LIMIT ?",
+        (limit,),
+    )
+    return [dict(r) for r in rows]

backend/manufacturing/models.py

@@ -59,3 +59,21 @@ class DeviceInventoryListResponse(BaseModel):
 class DeviceStatusUpdate(BaseModel):
     status: MfgStatus
     note: Optional[str] = None
+
+
+class DeviceAssign(BaseModel):
+    customer_email: str
+    customer_name: Optional[str] = None
+
+
+class RecentActivityItem(BaseModel):
+    serial_number: str
+    hw_type: str
+    mfg_status: str
+    owner: Optional[str] = None
+    updated_at: Optional[str] = None
+
+
+class ManufacturingStats(BaseModel):
+    counts: dict
+    recent_activity: List[RecentActivityItem]

backend/manufacturing/router.py

@@ -1,5 +1,6 @@
 from fastapi import APIRouter, Depends, Query
 from fastapi.responses import Response
+from fastapi.responses import RedirectResponse
 from typing import Optional
 
 from auth.models import TokenPayload
@@ -7,19 +8,48 @@ from auth.dependencies import require_permission
 from manufacturing.models import (
     BatchCreate, BatchResponse,
     DeviceInventoryItem, DeviceInventoryListResponse,
-    DeviceStatusUpdate,
+    DeviceStatusUpdate, DeviceAssign,
+    ManufacturingStats,
 )
 from manufacturing import service
+from manufacturing import audit
 
 router = APIRouter(prefix="/api/manufacturing", tags=["manufacturing"])
 
 
-@router.post("/batch", response_model=BatchResponse, status_code=201)
-def create_batch(
-    body: BatchCreate,
-    _user: TokenPayload = Depends(require_permission("manufacturing", "add")),
+@router.get("/stats", response_model=ManufacturingStats)
+def get_stats(
+    _user: TokenPayload = Depends(require_permission("manufacturing", "view")),
 ):
-    return service.create_batch(body)
+    return service.get_stats()
+
+
+@router.get("/audit-log")
+async def get_audit_log(
+    limit: int = Query(20, ge=1, le=100),
+    _user: TokenPayload = Depends(require_permission("manufacturing", "view")),
+):
+    entries = await audit.get_recent(limit=limit)
+    return {"entries": entries}
+
+
+@router.post("/batch", response_model=BatchResponse, status_code=201)
+async def create_batch(
+    body: BatchCreate,
+    user: TokenPayload = Depends(require_permission("manufacturing", "add")),
+):
+    result = service.create_batch(body)
+    await audit.log_action(
+        admin_user=user.email,
+        action="batch_created",
+        detail={
+            "batch_id": result.batch_id,
+            "board_type": result.board_type,
+            "board_version": result.board_version,
+            "quantity": len(result.serial_numbers),
+        },
+    )
+    return result
 
 
 @router.get("/devices", response_model=DeviceInventoryListResponse)
@@ -50,22 +80,62 @@ def get_device(
 
 
 @router.patch("/devices/{sn}/status", response_model=DeviceInventoryItem)
-def update_status(
+async def update_status(
     sn: str,
     body: DeviceStatusUpdate,
-    _user: TokenPayload = Depends(require_permission("manufacturing", "edit")),
+    user: TokenPayload = Depends(require_permission("manufacturing", "edit")),
 ):
-    return service.update_device_status(sn, body)
+    result = service.update_device_status(sn, body)
+    await audit.log_action(
+        admin_user=user.email,
+        action="status_updated",
+        serial_number=sn,
+        detail={"status": body.status.value, "note": body.note},
+    )
+    return result
 
 
 @router.get("/devices/{sn}/nvs.bin")
-def download_nvs(
+async def download_nvs(
     sn: str,
-    _user: TokenPayload = Depends(require_permission("manufacturing", "view")),
+    user: TokenPayload = Depends(require_permission("manufacturing", "view")),
 ):
     binary = service.get_nvs_binary(sn)
+    await audit.log_action(
+        admin_user=user.email,
+        action="device_flashed",
+        serial_number=sn,
+    )
     return Response(
         content=binary,
         media_type="application/octet-stream",
         headers={"Content-Disposition": f'attachment; filename="{sn}_nvs.bin"'},
     )
+
+
+@router.post("/devices/{sn}/assign", response_model=DeviceInventoryItem)
+async def assign_device(
+    sn: str,
+    body: DeviceAssign,
+    user: TokenPayload = Depends(require_permission("manufacturing", "edit")),
+):
+    result = service.assign_device(sn, body)
+    await audit.log_action(
+        admin_user=user.email,
+        action="device_assigned",
+        serial_number=sn,
+        detail={"customer_email": body.customer_email, "customer_name": body.customer_name},
+    )
+    return result
+
+
+@router.get("/devices/{sn}/firmware.bin")
+def redirect_firmware(
+    sn: str,
+    _user: TokenPayload = Depends(require_permission("manufacturing", "view")),
+):
+    """Redirect to the latest stable firmware binary for this device's hw_type.
+    Resolves to GET /api/firmware/{hw_type}/stable/{version}/firmware.bin.
+    """
+    url = service.get_firmware_url(sn)
+    return RedirectResponse(url=url, status_code=302)

backend/manufacturing/service.py

@@ -6,7 +6,7 @@ from shared.firebase import get_db
 from shared.exceptions import NotFoundError
 from utils.serial_number import generate_serial
 from utils.nvs_generator import generate as generate_nvs_binary
-from manufacturing.models import BatchCreate, BatchResponse, DeviceInventoryItem, DeviceStatusUpdate
+from manufacturing.models import BatchCreate, BatchResponse, DeviceInventoryItem, DeviceStatusUpdate, DeviceAssign, ManufacturingStats, RecentActivityItem
 
 COLLECTION = "devices"
 _BATCH_ID_CHARS = string.ascii_uppercase + string.digits
@@ -151,3 +151,77 @@ def get_nvs_binary(sn: str) -> bytes:
         hw_type=item.hw_type,
         hw_version=item.hw_version,
     )
+
+
+def assign_device(sn: str, data: DeviceAssign) -> DeviceInventoryItem:
+    from utils.email import send_device_assignment_invite
+
+    db = get_db()
+    docs = list(db.collection(COLLECTION).where("serial_number", "==", sn).limit(1).stream())
+    if not docs:
+        raise NotFoundError("Device")
+
+    doc_ref = docs[0].reference
+    doc_ref.update({
+        "owner": data.customer_email,
+        "assigned_to": data.customer_email,
+        "mfg_status": "sold",
+    })
+
+    send_device_assignment_invite(
+        customer_email=data.customer_email,
+        serial_number=sn,
+        customer_name=data.customer_name,
+    )
+
+    return _doc_to_inventory_item(doc_ref.get())
+
+
+def get_stats() -> ManufacturingStats:
+    db = get_db()
+    docs = list(db.collection(COLLECTION).stream())
+
+    all_statuses = ["manufactured", "flashed", "provisioned", "sold", "claimed", "decommissioned"]
+    counts = {s: 0 for s in all_statuses}
+
+    activity_candidates = []
+    for doc in docs:
+        data = doc.to_dict() or {}
+        status = data.get("mfg_status", "manufactured")
+        if status in counts:
+            counts[status] += 1
+
+        if status in ("provisioned", "sold", "claimed"):
+            # Use created_at as a proxy timestamp; Firestore DatetimeWithNanoseconds or plain datetime
+            ts = data.get("created_at")
+            if isinstance(ts, datetime):
+                ts_str = ts.strftime("%Y-%m-%dT%H:%M:%SZ")
+            else:
+                ts_str = str(ts) if ts else None
+
+            activity_candidates.append(RecentActivityItem(
+                serial_number=data.get("serial_number", ""),
+                hw_type=data.get("hw_type", ""),
+                mfg_status=status,
+                owner=data.get("owner"),
+                updated_at=ts_str,
+            ))
+
+    # Sort by updated_at descending, take latest 10
+    activity_candidates.sort(
+        key=lambda x: x.updated_at or "",
+        reverse=True,
+    )
+    recent = activity_candidates[:10]
+
+    return ManufacturingStats(counts=counts, recent_activity=recent)
+
+
+def get_firmware_url(sn: str) -> str:
+    """Return the FastAPI download URL for the latest stable firmware for this device's hw_type."""
+    from firmware.service import get_latest
+    item = get_device_by_sn(sn)
+    hw_type = item.hw_type.lower()
+    latest = get_latest(hw_type, "stable")
+    # download_url is a relative path like /api/firmware/vs/stable/1.4.2/firmware.bin
+    return latest.download_url

backend/mqtt/database.py

@@ -65,6 +65,17 @@ SCHEMA_STATEMENTS = [
         created_at TEXT NOT NULL DEFAULT (datetime('now')),
         updated_at TEXT NOT NULL DEFAULT (datetime('now'))
     )""",
+    # Manufacturing audit log
+    """CREATE TABLE IF NOT EXISTS mfg_audit_log (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        timestamp TEXT NOT NULL DEFAULT (datetime('now')),
+        admin_user TEXT NOT NULL,
+        action TEXT NOT NULL,
+        serial_number TEXT,
+        detail TEXT
+    )""",
+    "CREATE INDEX IF NOT EXISTS idx_mfg_audit_time ON mfg_audit_log(timestamp)",
+    "CREATE INDEX IF NOT EXISTS idx_mfg_audit_action ON mfg_audit_log(action)",
 ]
 
 

backend/requirements.txt

@@ -8,4 +8,5 @@ python-jose[cryptography]==3.3.0
 passlib[bcrypt]==1.7.4
 python-multipart==0.0.20
 bcrypt==4.0.1
-aiosqlite==0.20.0
+aiosqlite==0.20.0
+resend==2.10.0

backend/utils/email.py

@@ -0,0 +1,87 @@
+import logging
+import resend
+from config import settings
+
+logger = logging.getLogger(__name__)
+
+
+def _get_client() -> resend.Resend:
+    return resend.Resend(api_key=settings.resend_api_key)
+
+
+def send_email(to: str, subject: str, html: str) -> None:
+    """Send a transactional email via Resend. Logs errors but does not raise."""
+    try:
+        client = _get_client()
+        client.emails.send({
+            "from": settings.email_from,
+            "to": to,
+            "subject": subject,
+            "html": html,
+        })
+        logger.info("Email sent to %s — subject: %s", to, subject)
+    except Exception as exc:
+        logger.error("Failed to send email to %s: %s", to, exc)
+        raise
+
+
+def send_device_assignment_invite(
+    customer_email: str,
+    serial_number: str,
+    customer_name: str | None = None,
+) -> None:
+    """Notify a customer that a Vesper device has been assigned to them."""
+    greeting = f"Hi {customer_name}," if customer_name else "Hello,"
+    html = f"""
+    <div style="font-family: sans-serif; max-width: 600px; margin: 0 auto;">
+      <h2 style="color: #111827;">Your Vesper device is ready</h2>
+      <p>{greeting}</p>
+      <p>A Vesper bell automation device has been registered and assigned to you.</p>
+      <p>
+        <strong>Serial Number:</strong>
+        <code style="background: #f3f4f6; padding: 2px 6px; border-radius: 4px; font-size: 14px;">{serial_number}</code>
+      </p>
+      <p>Open the Vesper app and enter this serial number to get started.</p>
+      <hr style="border: none; border-top: 1px solid #e5e7eb; margin: 24px 0;" />
+      <p style="color: #6b7280; font-size: 12px;">
+        If you did not expect this email, please contact your system administrator.
+      </p>
+    </div>
+    """
+    send_email(
+        to=customer_email,
+        subject=f"Your Vesper device is ready — {serial_number}",
+        html=html,
+    )
+
+
+def send_device_provisioned_alert(
+    admin_email: str,
+    serial_number: str,
+    hw_type: str,
+) -> None:
+    """Internal alert sent to an admin when a device reaches provisioned status."""
+    html = f"""
+    <div style="font-family: sans-serif; max-width: 600px; margin: 0 auto;">
+      <h2 style="color: #111827;">Device Provisioned</h2>
+      <p>A Vesper device has successfully provisioned and is ready to ship.</p>
+      <table style="border-collapse: collapse; width: 100%; margin-top: 16px;">
+        <tr>
+          <td style="padding: 6px 12px; font-weight: bold; background: #f9fafb;">Serial Number</td>
+          <td style="padding: 6px 12px; font-family: monospace;">{serial_number}</td>
+        </tr>
+        <tr>
+          <td style="padding: 6px 12px; font-weight: bold; background: #f9fafb;">Board Type</td>
+          <td style="padding: 6px 12px;">{hw_type.upper()}</td>
+        </tr>
+      </table>
+      <p style="margin-top: 24px;">
+        <a href="#" style="color: #2563eb;">View in Admin Console</a>
+      </p>
+    </div>
+    """
+    send_email(
+        to=admin_email,
+        subject=f"[Vesper] Device provisioned — {serial_number}",
+        html=html,
+    )

frontend/package-lock.json

@@ -8,6 +8,7 @@
       "name": "frontend",
       "version": "0.0.0",
       "dependencies": {
+        "esptool-js": "^0.5.7",
         "leaflet": "^1.9.4",
         "react": "^19.2.0",
         "react-dom": "^19.2.0",
@@ -1814,6 +1815,12 @@
       "dev": true,
       "license": "Python-2.0"
     },
+    "node_modules/atob-lite": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/atob-lite/-/atob-lite-2.0.0.tgz",
+      "integrity": "sha512-LEeSAWeh2Gfa2FtlQE1shxQ8zi5F9GHarrGKz08TMdODD5T4eH6BMsvtnhbWZ+XQn+Gb6om/917ucvRu7l7ukw==",
+      "license": "MIT"
+    },
     "node_modules/balanced-match": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
@@ -2252,6 +2259,17 @@
         "url": "https://opencollective.com/eslint"
       }
     },
+    "node_modules/esptool-js": {
+      "version": "0.5.7",
+      "resolved": "https://registry.npmjs.org/esptool-js/-/esptool-js-0.5.7.tgz",
+      "integrity": "sha512-k3pkXU9OTySCd58OUDjuJWNnFjM+QpPWAghxyWPm3zNfaLiP4ex2jNd7Rj0jWPu3/fgvwau236tetsTZrh4x5g==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "atob-lite": "^2.0.0",
+        "pako": "^2.1.0",
+        "tslib": "^2.4.1"
+      }
+    },
     "node_modules/esquery": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/esquery/-/esquery-1.7.0.tgz",
@@ -3054,6 +3072,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/pako": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/pako/-/pako-2.1.0.tgz",
+      "integrity": "sha512-w+eufiZ1WuJYgPXbV/PO3NCMEc3xqylkKHzp8bxp1uW4qaSNQUkwmLLEc3kKsfz8lpV1F8Ht3U1Cm+9Srog2ug==",
+      "license": "(MIT AND Zlib)"
+    },
     "node_modules/parent-module": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/parent-module/-/parent-module-1.0.1.tgz",
@@ -3413,6 +3437,12 @@
         "url": "https://github.com/sponsors/SuperchupuDev"
       }
     },
+    "node_modules/tslib": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
+      "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
+      "license": "0BSD"
+    },
     "node_modules/type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",

frontend/package.json

@@ -10,6 +10,7 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "esptool-js": "^0.5.7",
     "leaflet": "^1.9.4",
     "react": "^19.2.0",
     "react-dom": "^19.2.0",

frontend/src/App.jsx

@@ -27,7 +27,9 @@ import StaffForm from "./settings/StaffForm";
 import DeviceInventory from "./manufacturing/DeviceInventory";
 import BatchCreator from "./manufacturing/BatchCreator";
 import DeviceInventoryDetail from "./manufacturing/DeviceInventoryDetail";
+import ProvisioningWizard from "./manufacturing/ProvisioningWizard";
 import FirmwareManager from "./firmware/FirmwareManager";
+import DashboardPage from "./dashboard/DashboardPage";
 
 function ProtectedRoute({ children }) {
   const { user, loading } = useAuth();
@@ -93,18 +95,6 @@ function RoleGate({ roles, children }) {
   return children;
 }
 
-function DashboardPage() {
-  const { user } = useAuth();
-  return (
-    <div>
-      <h1 className="text-2xl font-bold mb-4" style={{ color: "var(--text-heading)" }}>Dashboard</h1>
-      <p style={{ color: "var(--text-secondary)" }}>
-        Welcome, {user?.name}. You are logged in as{" "}
-        <span className="font-medium" style={{ color: "var(--accent)" }}>{user?.role}</span>.
-      </p>
-    </div>
-  );
-}
 
 export default function App() {
   return (
@@ -156,6 +146,7 @@ export default function App() {
         {/* Manufacturing */}
         <Route path="manufacturing" element={<PermissionGate section="manufacturing"><DeviceInventory /></PermissionGate>} />
         <Route path="manufacturing/batch/new" element={<PermissionGate section="manufacturing" action="add"><BatchCreator /></PermissionGate>} />
+        <Route path="manufacturing/provision" element={<PermissionGate section="manufacturing" action="edit"><ProvisioningWizard /></PermissionGate>} />
         <Route path="manufacturing/devices/:sn" element={<PermissionGate section="manufacturing"><DeviceInventoryDetail /></PermissionGate>} />
         <Route path="firmware" element={<PermissionGate section="manufacturing"><FirmwareManager /></PermissionGate>} />
 

frontend/src/dashboard/DashboardPage.jsx

@@ -0,0 +1,266 @@
+import { useState, useEffect } from "react";
+import { useNavigate } from "react-router-dom";
+import { useAuth } from "../auth/AuthContext";
+import api from "../api/client";
+
+const STATUS_STYLES = {
+  manufactured:   { bg: "var(--bg-card-hover)",  color: "var(--text-muted)" },
+  flashed:        { bg: "var(--badge-blue-bg)",   color: "var(--badge-blue-text)" },
+  provisioned:    { bg: "#0a2e2a",                color: "#4dd6c8" },
+  sold:           { bg: "#1e1036",                color: "#c084fc" },
+  claimed:        { bg: "#2e1a00",                color: "#fb923c" },
+  decommissioned: { bg: "var(--danger-bg)",       color: "var(--danger-text)" },
+};
+
+const STATUS_ORDER = ["manufactured", "flashed", "provisioned", "sold", "claimed", "decommissioned"];
+
+const ACTION_LABELS = {
+  batch_created:   "Batch created",
+  device_flashed:  "NVS downloaded",
+  device_assigned: "Device assigned",
+  status_updated:  "Status updated",
+};
+
+function StatusBadge({ status }) {
+  const style = STATUS_STYLES[status] || STATUS_STYLES.manufactured;
+  return (
+    <span
+      className="px-2 py-0.5 text-xs rounded-full capitalize font-medium"
+      style={{ backgroundColor: style.bg, color: style.color }}
+    >
+      {status}
+    </span>
+  );
+}
+
+function StatCard({ label, count, status, onClick }) {
+  const style = STATUS_STYLES[status] || STATUS_STYLES.manufactured;
+  return (
+    <button
+      onClick={onClick}
+      className="rounded-lg border p-4 text-left transition-colors cursor-pointer w-full"
+      style={{ backgroundColor: "var(--bg-card)", borderColor: "var(--border-primary)" }}
+      onMouseEnter={(e) => (e.currentTarget.style.backgroundColor = "var(--bg-card-hover)")}
+      onMouseLeave={(e) => (e.currentTarget.style.backgroundColor = "var(--bg-card)")}
+    >
+      <div
+        className="text-3xl font-bold mb-1"
+        style={{ color: style.color }}
+      >
+        {count}
+      </div>
+      <div className="text-xs capitalize font-medium" style={{ color: "var(--text-muted)" }}>
+        {label}
+      </div>
+    </button>
+  );
+}
+
+export default function DashboardPage() {
+  const { user, hasPermission } = useAuth();
+  const navigate = useNavigate();
+  const canViewMfg = hasPermission("manufacturing", "view");
+
+  const [stats, setStats] = useState(null);
+  const [auditLog, setAuditLog] = useState([]);
+  const [loadingStats, setLoadingStats] = useState(false);
+  const [loadingAudit, setLoadingAudit] = useState(false);
+
+  useEffect(() => {
+    if (!canViewMfg) return;
+
+    setLoadingStats(true);
+    api.get("/manufacturing/stats")
+      .then(setStats)
+      .catch(() => {})
+      .finally(() => setLoadingStats(false));
+
+    setLoadingAudit(true);
+    api.get("/manufacturing/audit-log?limit=20")
+      .then((data) => setAuditLog(data.entries || []))
+      .catch(() => {})
+      .finally(() => setLoadingAudit(false));
+  }, [canViewMfg]);
+
+  const formatTs = (ts) => {
+    if (!ts) return "—";
+    try {
+      return new Date(ts).toLocaleString("en-US", {
+        month: "short", day: "numeric",
+        hour: "2-digit", minute: "2-digit",
+      });
+    } catch {
+      return ts;
+    }
+  };
+
+  return (
+    <div>
+      <h1 className="text-2xl font-bold mb-1" style={{ color: "var(--text-heading)" }}>
+        Dashboard
+      </h1>
+      <p className="text-sm mb-6" style={{ color: "var(--text-secondary)" }}>
+        Welcome, {user?.name}.{" "}
+        <span className="font-medium" style={{ color: "var(--accent)" }}>{user?.role}</span>
+      </p>
+
+      {canViewMfg && (
+        <>
+          {/* Device Status Summary */}
+          <div className="mb-2 flex items-center justify-between">
+            <h2 className="text-sm font-semibold uppercase tracking-wide" style={{ color: "var(--text-muted)" }}>
+              Device Inventory
+            </h2>
+            <button
+              onClick={() => navigate("/manufacturing")}
+              className="text-xs underline"
+              style={{ color: "var(--text-link)" }}
+            >
+              View all
+            </button>
+          </div>
+
+          {loadingStats ? (
+            <div className="text-sm mb-6" style={{ color: "var(--text-muted)" }}>Loading…</div>
+          ) : stats ? (
+            <div className="grid grid-cols-3 sm:grid-cols-6 gap-3 mb-8">
+              {STATUS_ORDER.map((s) => (
+                <StatCard
+                  key={s}
+                  label={s}
+                  count={stats.counts[s] ?? 0}
+                  status={s}
+                  onClick={() => navigate(`/manufacturing?status=${s}`)}
+                />
+              ))}
+            </div>
+          ) : null}
+
+          {/* Recent Activity */}
+          {stats?.recent_activity?.length > 0 && (
+            <div className="mb-8">
+              <h2 className="text-sm font-semibold uppercase tracking-wide mb-2" style={{ color: "var(--text-muted)" }}>
+                Recent Activity
+              </h2>
+              <div className="rounded-lg border overflow-hidden" style={{ borderColor: "var(--border-primary)" }}>
+                <table className="w-full text-sm">
+                  <thead>
+                    <tr style={{ backgroundColor: "var(--bg-secondary)", borderBottom: "1px solid var(--border-primary)" }}>
+                      <th className="px-4 py-2 text-left font-medium text-xs" style={{ color: "var(--text-muted)" }}>Serial Number</th>
+                      <th className="px-4 py-2 text-left font-medium text-xs" style={{ color: "var(--text-muted)" }}>Status</th>
+                      <th className="px-4 py-2 text-left font-medium text-xs" style={{ color: "var(--text-muted)" }}>Owner</th>
+                      <th className="px-4 py-2 text-left font-medium text-xs" style={{ color: "var(--text-muted)" }}>Date</th>
+                    </tr>
+                  </thead>
+                  <tbody>
+                    {stats.recent_activity.map((item, i) => (
+                      <tr
+                        key={i}
+                        className="cursor-pointer"
+                        style={{ borderBottom: "1px solid var(--border-secondary)" }}
+                        onClick={() => navigate(`/manufacturing/devices/${item.serial_number}`)}
+                        onMouseEnter={(e) => (e.currentTarget.style.backgroundColor = "var(--bg-card-hover)")}
+                        onMouseLeave={(e) => (e.currentTarget.style.backgroundColor = "")}
+                      >
+                        <td className="px-4 py-2 font-mono text-xs" style={{ color: "var(--text-primary)" }}>
+                          {item.serial_number}
+                        </td>
+                        <td className="px-4 py-2">
+                          <StatusBadge status={item.mfg_status} />
+                        </td>
+                        <td className="px-4 py-2 text-xs" style={{ color: "var(--text-muted)" }}>
+                          {item.owner || "—"}
+                        </td>
+                        <td className="px-4 py-2 text-xs" style={{ color: "var(--text-muted)" }}>
+                          {formatTs(item.updated_at)}
+                        </td>
+                      </tr>
+                    ))}
+                  </tbody>
+                </table>
+              </div>
+            </div>
+          )}
+
+          {/* Audit Log */}
+          <div>
+            <h2 className="text-sm font-semibold uppercase tracking-wide mb-2" style={{ color: "var(--text-muted)" }}>
+              Audit Log
+            </h2>
+            {loadingAudit ? (
+              <div className="text-sm" style={{ color: "var(--text-muted)" }}>Loading…</div>
+            ) : auditLog.length === 0 ? (
+              <div className="text-sm" style={{ color: "var(--text-muted)" }}>No audit entries yet.</div>
+            ) : (
+              <div className="rounded-lg border overflow-hidden" style={{ borderColor: "var(--border-primary)" }}>
+                <table className="w-full text-sm">
+                  <thead>
+                    <tr style={{ backgroundColor: "var(--bg-secondary)", borderBottom: "1px solid var(--border-primary)" }}>
+                      <th className="px-4 py-2 text-left font-medium text-xs" style={{ color: "var(--text-muted)" }}>Time</th>
+                      <th className="px-4 py-2 text-left font-medium text-xs" style={{ color: "var(--text-muted)" }}>Admin</th>
+                      <th className="px-4 py-2 text-left font-medium text-xs" style={{ color: "var(--text-muted)" }}>Action</th>
+                      <th className="px-4 py-2 text-left font-medium text-xs" style={{ color: "var(--text-muted)" }}>Device</th>
+                      <th className="px-4 py-2 text-left font-medium text-xs" style={{ color: "var(--text-muted)" }}>Detail</th>
+                    </tr>
+                  </thead>
+                  <tbody>
+                    {auditLog.map((entry) => (
+                      <tr
+                        key={entry.id}
+                        style={{ borderBottom: "1px solid var(--border-secondary)" }}
+                      >
+                        <td className="px-4 py-2 text-xs whitespace-nowrap" style={{ color: "var(--text-muted)" }}>
+                          {formatTs(entry.timestamp)}
+                        </td>
+                        <td className="px-4 py-2 text-xs" style={{ color: "var(--text-secondary)" }}>
+                          {entry.admin_user}
+                        </td>
+                        <td className="px-4 py-2 text-xs font-medium" style={{ color: "var(--text-primary)" }}>
+                          {ACTION_LABELS[entry.action] || entry.action}
+                        </td>
+                        <td className="px-4 py-2 font-mono text-xs" style={{ color: "var(--text-muted)" }}>
+                          {entry.serial_number
+                            ? (
+                              <button
+                                className="underline"
+                                style={{ color: "var(--text-link)" }}
+                                onClick={() => navigate(`/manufacturing/devices/${entry.serial_number}`)}
+                              >
+                                {entry.serial_number}
+                              </button>
+                            )
+                            : "—"}
+                        </td>
+                        <td className="px-4 py-2 text-xs" style={{ color: "var(--text-muted)" }}>
+                          {entry.detail
+                            ? (() => {
+                                try {
+                                  const d = JSON.parse(entry.detail);
+                                  return Object.entries(d)
+                                    .filter(([, v]) => v !== null && v !== undefined)
+                                    .map(([k, v]) => `${k}: ${v}`)
+                                    .join(", ");
+                                } catch {
+                                  return entry.detail;
+                                }
+                              })()
+                            : "—"}
+                        </td>
+                      </tr>
+                    ))}
+                  </tbody>
+                </table>
+              </div>
+            )}
+          </div>
+        </>
+      )}
+
+      {!canViewMfg && (
+        <p className="text-sm" style={{ color: "var(--text-muted)" }}>
+          Select a section from the sidebar to get started.
+        </p>
+      )}
+    </div>
+  );
+}

frontend/src/layout/Sidebar.jsx

@@ -32,6 +32,7 @@ const navItems = [
     children: [
       { to: "/manufacturing", label: "Device Inventory" },
       { to: "/manufacturing/batch/new", label: "New Batch" },
+      { to: "/manufacturing/provision", label: "Provision Device" },
       { to: "/firmware", label: "Firmware" },
     ],
   },

frontend/src/manufacturing/DeviceInventoryDetail.jsx

@@ -64,6 +64,12 @@ export default function DeviceInventoryDetail() {
 
   const [nvsDownloading, setNvsDownloading] = useState(false);
 
+  const [assignEmail, setAssignEmail] = useState("");
+  const [assignName, setAssignName] = useState("");
+  const [assignSaving, setAssignSaving] = useState(false);
+  const [assignError, setAssignError] = useState("");
+  const [assignSuccess, setAssignSuccess] = useState(false);
+
   const loadDevice = async () => {
     setLoading(true);
     setError("");
@@ -99,6 +105,28 @@ export default function DeviceInventoryDetail() {
     }
   };
 
+  const handleAssign = async () => {
+    setAssignError("");
+    setAssignSaving(true);
+    try {
+      const updated = await api.request(`/manufacturing/devices/${sn}/assign`, {
+        method: "POST",
+        body: JSON.stringify({
+          customer_email: assignEmail,
+          customer_name: assignName || null,
+        }),
+      });
+      setDevice(updated);
+      setAssignSuccess(true);
+      setAssignEmail("");
+      setAssignName("");
+    } catch (err) {
+      setAssignError(err.message);
+    } finally {
+      setAssignSaving(false);
+    }
+  };
+
   const downloadNvs = async () => {
     setNvsDownloading(true);
     try {
@@ -303,7 +331,7 @@ export default function DeviceInventoryDetail() {
 
       {/* Actions card */}
       <div
-        className="rounded-lg border p-5"
+        className="rounded-lg border p-5 mb-4"
         style={{ backgroundColor: "var(--bg-card)", borderColor: "var(--border-primary)" }}
       >
         <h2 className="text-sm font-semibold uppercase tracking-wide mb-3" style={{ color: "var(--text-muted)" }}>
@@ -326,6 +354,77 @@ export default function DeviceInventoryDetail() {
           NVS binary encodes device_uid, hw_type, hw_version. Flash at 0x9000.
         </p>
       </div>
+
+      {/* Assign to Customer card */}
+      {canEdit && ["provisioned", "flashed"].includes(device?.mfg_status) && (
+        <div
+          className="rounded-lg border p-5"
+          style={{ backgroundColor: "var(--bg-card)", borderColor: "var(--border-primary)" }}
+        >
+          <h2 className="text-sm font-semibold uppercase tracking-wide mb-3" style={{ color: "var(--text-muted)" }}>
+            Assign to Customer
+          </h2>
+
+          {assignSuccess ? (
+            <div
+              className="text-sm rounded-md p-3 border"
+              style={{ backgroundColor: "#0a2e2a", borderColor: "#4dd6c8", color: "#4dd6c8" }}
+            >
+              Device assigned and invitation email sent to <strong>{device?.owner}</strong>.
+            </div>
+          ) : (
+            <div className="space-y-3">
+              {assignError && (
+                <div
+                  className="text-xs rounded p-2 border"
+                  style={{
+                    backgroundColor: "var(--danger-bg)",
+                    borderColor: "var(--danger)",
+                    color: "var(--danger-text)",
+                  }}
+                >
+                  {assignError}
+                </div>
+              )}
+              <input
+                type="email"
+                placeholder="Customer email address"
+                value={assignEmail}
+                onChange={(e) => setAssignEmail(e.target.value)}
+                className="w-full px-3 py-2 rounded-md text-sm border"
+                style={{
+                  backgroundColor: "var(--bg-input)",
+                  borderColor: "var(--border-input)",
+                  color: "var(--text-primary)",
+                }}
+              />
+              <input
+                type="text"
+                placeholder="Customer name (optional)"
+                value={assignName}
+                onChange={(e) => setAssignName(e.target.value)}
+                className="w-full px-3 py-2 rounded-md text-sm border"
+                style={{
+                  backgroundColor: "var(--bg-input)",
+                  borderColor: "var(--border-input)",
+                  color: "var(--text-primary)",
+                }}
+              />
+              <button
+                onClick={handleAssign}
+                disabled={assignSaving || !assignEmail.trim()}
+                className="px-4 py-1.5 text-sm rounded-md hover:opacity-90 transition-opacity cursor-pointer disabled:opacity-50"
+                style={{ backgroundColor: "var(--btn-primary)", color: "var(--text-white)" }}
+              >
+                {assignSaving ? "Sending…" : "Assign & Send Invite"}
+              </button>
+              <p className="text-xs" style={{ color: "var(--text-muted)" }}>
+                Sets device status to <em>sold</em> and emails the customer their serial number.
+              </p>
+            </div>
+          )}
+        </div>
+      )}
     </div>
   );
 }

frontend/src/manufacturing/ProvisioningWizard.jsx

@@ -0,0 +1,868 @@
+import { useState, useRef, useCallback } from "react";
+import { useNavigate } from "react-router-dom";
+import { ESPLoader, Transport } from "esptool-js";
+import api from "../api/client";
+
+// ─── constants ───────────────────────────────────────────────────────────────
+
+const BOARD_TYPES = [
+  { value: "vs", label: "Vesper (VS)" },
+  { value: "vp", label: "Vesper+ (VP)" },
+  { value: "vx", label: "VesperPro (VX)" },
+];
+
+const BOARD_TYPE_LABELS = { vs: "Vesper", vp: "Vesper+", vx: "VesperPro" };
+
+const STATUS_STYLES = {
+  manufactured:   { bg: "var(--bg-card-hover)", color: "var(--text-muted)" },
+  flashed:        { bg: "var(--badge-blue-bg)", color: "var(--badge-blue-text)" },
+  provisioned:    { bg: "#0a2e2a", color: "#4dd6c8" },
+  sold:           { bg: "#1e1036", color: "#c084fc" },
+  claimed:        { bg: "#2e1a00", color: "#fb923c" },
+  decommissioned: { bg: "var(--danger-bg)", color: "var(--danger-text)" },
+};
+
+const FLASH_BAUD = 460800;
+const NVS_ADDRESS = 0x9000;
+const FW_ADDRESS  = 0x10000;
+const VERIFY_POLL_MS = 5000;
+const VERIFY_TIMEOUT_MS = 120_000;
+
+// ─── small helpers ────────────────────────────────────────────────────────────
+
+function StatusBadge({ status }) {
+  const style = STATUS_STYLES[status] || STATUS_STYLES.manufactured;
+  return (
+    <span
+      className="px-2.5 py-1 text-sm rounded-full capitalize font-medium"
+      style={{ backgroundColor: style.bg, color: style.color }}
+    >
+      {status}
+    </span>
+  );
+}
+
+function StepIndicator({ current }) {
+  const steps = ["Select Device", "Flash", "Verify", "Done"];
+  return (
+    <div className="flex items-center gap-0 mb-8">
+      {steps.map((label, i) => {
+        const idx = i + 1;
+        const done    = idx < current;
+        const active  = idx === current;
+        const pending = idx > current;
+        return (
+          <div key={label} className="flex items-center">
+            <div className="flex flex-col items-center">
+              <div
+                className="w-8 h-8 rounded-full flex items-center justify-center text-sm font-semibold transition-colors"
+                style={{
+                  backgroundColor: done
+                    ? "var(--accent)"
+                    : active
+                      ? "var(--accent)"
+                      : "var(--bg-card-hover)",
+                  color: done || active ? "var(--bg-primary)" : "var(--text-muted)",
+                  opacity: pending ? 0.5 : 1,
+                }}
+              >
+                {done ? (
+                  <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2.5} d="M5 13l4 4L19 7" />
+                  </svg>
+                ) : idx}
+              </div>
+              <span
+                className="text-xs mt-1 whitespace-nowrap"
+                style={{ color: active ? "var(--text-primary)" : "var(--text-muted)", opacity: pending ? 0.5 : 1 }}
+              >
+                {label}
+              </span>
+            </div>
+            {i < steps.length - 1 && (
+              <div
+                className="h-px w-12 mx-1 mb-5 flex-shrink-0"
+                style={{ backgroundColor: done ? "var(--accent)" : "var(--border-primary)" }}
+              />
+            )}
+          </div>
+        );
+      })}
+    </div>
+  );
+}
+
+function ProgressBar({ label, percent }) {
+  return (
+    <div className="space-y-1.5">
+      <div className="flex justify-between text-xs" style={{ color: "var(--text-secondary)" }}>
+        <span>{label}</span>
+        <span>{Math.round(percent)}%</span>
+      </div>
+      <div
+        className="h-2 rounded-full overflow-hidden"
+        style={{ backgroundColor: "var(--bg-card-hover)" }}
+      >
+        <div
+          className="h-full rounded-full transition-all duration-200"
+          style={{ width: `${percent}%`, backgroundColor: "var(--accent)" }}
+        />
+      </div>
+    </div>
+  );
+}
+
+function ErrorBox({ msg }) {
+  if (!msg) return null;
+  return (
+    <div
+      className="text-sm rounded-md p-3 border"
+      style={{
+        backgroundColor: "var(--danger-bg)",
+        borderColor: "var(--danger)",
+        color: "var(--danger-text)",
+      }}
+    >
+      {msg}
+    </div>
+  );
+}
+
+function inputCls() {
+  return "w-full px-3 py-2 rounded-md text-sm border";
+}
+
+function inputStyle() {
+  return {
+    backgroundColor: "var(--bg-input)",
+    borderColor: "var(--border-input)",
+    color: "var(--text-primary)",
+  };
+}
+
+// ─── Step 1 — Select or create device ─────────────────────────────────────────
+
+function StepSelectDevice({ onSelected }) {
+  const [mode, setMode]               = useState("search"); // "search" | "create"
+  const [searchSn, setSearchSn]       = useState("");
+  const [searching, setSearching]     = useState(false);
+  const [searchError, setSearchError] = useState("");
+  const [found, setFound]             = useState(null);
+
+  // Create-device fields
+  const [boardType, setBoardType]     = useState("vs");
+  const [boardVersion, setBoardVersion] = useState("01");
+  const [creating, setCreating]       = useState(false);
+  const [createError, setCreateError] = useState("");
+
+  const handleSearch = async (e) => {
+    e.preventDefault();
+    setSearchError("");
+    setFound(null);
+    setSearching(true);
+    try {
+      const data = await api.get(`/manufacturing/devices/${searchSn.trim().toUpperCase()}`);
+      if (data.mfg_status === "flashed" || data.mfg_status === "provisioned") {
+        setSearchError(
+          `Device is already ${data.mfg_status}. Only unprovisioned devices can be re-flashed here.`
+        );
+      } else {
+        setFound(data);
+      }
+    } catch (err) {
+      setSearchError(err.message);
+    } finally {
+      setSearching(false);
+    }
+  };
+
+  const handleCreate = async (e) => {
+    e.preventDefault();
+    setCreateError("");
+    setCreating(true);
+    try {
+      const batch = await api.post("/manufacturing/batch", {
+        board_type: boardType,
+        board_version: boardVersion,
+        quantity: 1,
+      });
+      const sn = batch.serial_numbers[0];
+      const device = await api.get(`/manufacturing/devices/${sn}`);
+      setFound(device);
+    } catch (err) {
+      setCreateError(err.message);
+    } finally {
+      setCreating(false);
+    }
+  };
+
+  if (found) {
+    return (
+      <div className="space-y-4">
+        <div
+          className="rounded-lg border p-5"
+          style={{ backgroundColor: "var(--bg-card)", borderColor: "var(--border-primary)" }}
+        >
+          <h3 className="text-sm font-semibold uppercase tracking-wide mb-4" style={{ color: "var(--text-muted)" }}>
+            Device Selected
+          </h3>
+          <div className="grid grid-cols-2 gap-4 mb-4">
+            <div>
+              <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>Serial Number</p>
+              <p className="text-sm font-mono" style={{ color: "var(--text-primary)" }}>{found.serial_number}</p>
+            </div>
+            <div>
+              <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>Board Type</p>
+              <p className="text-sm" style={{ color: "var(--text-primary)" }}>{BOARD_TYPE_LABELS[found.hw_type] || found.hw_type}</p>
+            </div>
+            <div>
+              <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>HW Version</p>
+              <p className="text-sm" style={{ color: "var(--text-primary)" }}>v{found.hw_version}</p>
+            </div>
+            <div>
+              <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>Status</p>
+              <StatusBadge status={found.mfg_status} />
+            </div>
+          </div>
+          <div className="flex gap-3">
+            <button
+              onClick={() => onSelected(found)}
+              className="px-5 py-2 text-sm rounded-md font-medium hover:opacity-90 transition-opacity cursor-pointer"
+              style={{ backgroundColor: "var(--btn-primary)", color: "var(--text-white)" }}
+            >
+              Continue →
+            </button>
+            <button
+              onClick={() => setFound(null)}
+              className="px-4 py-2 text-sm rounded-md hover:opacity-80 transition-opacity cursor-pointer"
+              style={{ backgroundColor: "var(--bg-card-hover)", color: "var(--text-secondary)" }}
+            >
+              Change Device
+            </button>
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-4">
+      {/* Mode toggle */}
+      <div className="flex rounded-md overflow-hidden border" style={{ borderColor: "var(--border-primary)" }}>
+        {[["search", "Search Existing"], ["create", "Quick Create"]].map(([val, lbl]) => (
+          <button
+            key={val}
+            onClick={() => { setMode(val); setSearchError(""); setCreateError(""); }}
+            className="flex-1 py-2 text-sm font-medium transition-colors cursor-pointer"
+            style={{
+              backgroundColor: mode === val ? "var(--accent)" : "var(--bg-card-hover)",
+              color: mode === val ? "var(--bg-primary)" : "var(--text-secondary)",
+            }}
+          >
+            {lbl}
+          </button>
+        ))}
+      </div>
+
+      {/* Search */}
+      {mode === "search" && (
+        <div
+          className="rounded-lg border p-5"
+          style={{ backgroundColor: "var(--bg-card)", borderColor: "var(--border-primary)" }}
+        >
+          <h3 className="text-sm font-semibold mb-4" style={{ color: "var(--text-heading)" }}>
+            Find Unprovisioned Device
+          </h3>
+          <ErrorBox msg={searchError} />
+          {searchError && <div className="h-3" />}
+          <form onSubmit={handleSearch} className="space-y-3">
+            <input
+              type="text"
+              placeholder="e.g. PV-26B27-VS01R-X7KQA"
+              value={searchSn}
+              onChange={(e) => setSearchSn(e.target.value)}
+              required
+              className={inputCls()}
+              style={inputStyle()}
+            />
+            <button
+              type="submit"
+              disabled={searching}
+              className="px-5 py-2 text-sm rounded-md font-medium hover:opacity-90 transition-opacity cursor-pointer disabled:opacity-50"
+              style={{ backgroundColor: "var(--btn-primary)", color: "var(--text-white)" }}
+            >
+              {searching ? "Searching…" : "Search"}
+            </button>
+          </form>
+        </div>
+      )}
+
+      {/* Create */}
+      {mode === "create" && (
+        <div
+          className="rounded-lg border p-5"
+          style={{ backgroundColor: "var(--bg-card)", borderColor: "var(--border-primary)" }}
+        >
+          <h3 className="text-sm font-semibold mb-4" style={{ color: "var(--text-heading)" }}>
+            Create Single Device
+          </h3>
+          <ErrorBox msg={createError} />
+          {createError && <div className="h-3" />}
+          <form onSubmit={handleCreate} className="space-y-4">
+            <div>
+              <label className="block text-sm font-medium mb-1.5" style={{ color: "var(--text-secondary)" }}>
+                Board Type
+              </label>
+              <select
+                value={boardType}
+                onChange={(e) => setBoardType(e.target.value)}
+                className={inputCls()}
+                style={inputStyle()}
+              >
+                {BOARD_TYPES.map((bt) => (
+                  <option key={bt.value} value={bt.value}>{bt.label}</option>
+                ))}
+              </select>
+            </div>
+            <div>
+              <label className="block text-sm font-medium mb-1.5" style={{ color: "var(--text-secondary)" }}>
+                Board Version
+              </label>
+              <input
+                type="text"
+                value={boardVersion}
+                onChange={(e) => setBoardVersion(e.target.value)}
+                placeholder="01"
+                maxLength={2}
+                pattern="\d{2}"
+                required
+                className={inputCls()}
+                style={inputStyle()}
+              />
+            </div>
+            <button
+              type="submit"
+              disabled={creating}
+              className="px-5 py-2 text-sm rounded-md font-medium hover:opacity-90 transition-opacity cursor-pointer disabled:opacity-50"
+              style={{ backgroundColor: "var(--btn-primary)", color: "var(--text-white)" }}
+            >
+              {creating ? "Creating…" : "Create & Continue"}
+            </button>
+          </form>
+        </div>
+      )}
+    </div>
+  );
+}
+
+// ─── Step 2 — Flash ────────────────────────────────────────────────────────────
+
+function StepFlash({ device, onFlashed }) {
+  const [connecting, setConnecting]   = useState(false);
+  const [flashing, setFlashing]       = useState(false);
+  const [nvsProgress, setNvsProgress] = useState(0);
+  const [fwProgress, setFwProgress]   = useState(0);
+  const [log, setLog]                 = useState([]);
+  const [error, setError]             = useState("");
+  const loaderRef                     = useRef(null);
+
+  const appendLog = (msg) => setLog((prev) => [...prev, msg]);
+
+  const fetchBinary = async (url) => {
+    const token = localStorage.getItem("access_token");
+    const resp = await fetch(url, { headers: { Authorization: `Bearer ${token}` } });
+    if (!resp.ok) {
+      const err = await resp.json().catch(() => ({}));
+      throw new Error(err.detail || `Failed to fetch ${url}: ${resp.status}`);
+    }
+    return resp.arrayBuffer();
+  };
+
+  // esptool-js wants binary data as a plain string of char codes
+  const arrayBufferToString = (buf) => {
+    const bytes = new Uint8Array(buf);
+    let str = "";
+    for (let i = 0; i < bytes.length; i++) {
+      str += String.fromCharCode(bytes[i]);
+    }
+    return str;
+  };
+
+  const handleFlash = async () => {
+    setError("");
+    setLog([]);
+    setNvsProgress(0);
+    setFwProgress(0);
+
+    // 1. Open Web Serial port
+    let port;
+    try {
+      setConnecting(true);
+      appendLog("Opening port picker…");
+      port = await navigator.serial.requestPort();
+    } catch (err) {
+      setError(err.message || "Port selection cancelled.");
+      setConnecting(false);
+      return;
+    }
+
+    try {
+      // 2. Fetch binaries from backend
+      appendLog("Fetching NVS binary…");
+      const nvsBuffer = await fetchBinary(`/api/manufacturing/devices/${device.serial_number}/nvs.bin`);
+      appendLog(`NVS binary: ${nvsBuffer.byteLength} bytes`);
+
+      appendLog("Fetching firmware binary…");
+      const fwBuffer = await fetchBinary(`/api/manufacturing/devices/${device.serial_number}/firmware.bin`);
+      appendLog(`Firmware binary: ${fwBuffer.byteLength} bytes`);
+
+      // 3. Connect ESPLoader
+      setConnecting(false);
+      setFlashing(true);
+      appendLog("Connecting to ESP32…");
+
+      const transport = new Transport(port, true);
+      loaderRef.current = new ESPLoader({
+        transport,
+        baudrate: FLASH_BAUD,
+        terminal: {
+          clean() {},
+          writeLine: (line) => appendLog(line),
+          write: (msg) => appendLog(msg),
+        },
+      });
+
+      await loaderRef.current.main();
+      appendLog("ESP32 connected.");
+
+      // 4. Flash NVS + firmware with progress callbacks
+      const nvsData = arrayBufferToString(nvsBuffer);
+      const fwData  = arrayBufferToString(fwBuffer);
+
+      // Track progress by watching the two images in sequence.
+      // esptool-js reports progress as { index, fileIndex, written, total }
+      const totalBytes = nvsBuffer.byteLength + fwBuffer.byteLength;
+      let writtenSoFar = 0;
+
+      await loaderRef.current.writeFlash({
+        fileArray: [
+          { data: nvsData, address: NVS_ADDRESS },
+          { data: fwData,  address: FW_ADDRESS  },
+        ],
+        flashSize: "keep",
+        flashMode: "keep",
+        flashFreq: "keep",
+        eraseAll: false,
+        compress: true,
+        reportProgress(fileIndex, written, total) {
+          if (fileIndex === 0) {
+            setNvsProgress((written / total) * 100);
+          } else {
+            setNvsProgress(100);
+            setFwProgress((written / total) * 100);
+          }
+          writtenSoFar = written;
+        },
+        calculateMD5Hash: (image) => {
+          // MD5 is optional for progress verification; returning empty disables it
+          return "";
+        },
+      });
+
+      setNvsProgress(100);
+      setFwProgress(100);
+      appendLog("Flash complete. Disconnecting…");
+      await transport.disconnect();
+      appendLog("Done.");
+
+      // 5. Update device status → flashed
+      await api.request(`/manufacturing/devices/${device.serial_number}/status`, {
+        method: "PATCH",
+        body: JSON.stringify({ status: "flashed", note: "Flashed via browser provisioning wizard" }),
+      });
+
+      onFlashed();
+    } catch (err) {
+      setError(err.message || String(err));
+      setFlashing(false);
+      setConnecting(false);
+      try {
+        if (loaderRef.current) await loaderRef.current.transport?.disconnect();
+      } catch (_) {}
+    }
+  };
+
+  const webSerialAvailable = "serial" in navigator;
+
+  return (
+    <div className="space-y-4">
+      <div
+        className="rounded-lg border p-5"
+        style={{ backgroundColor: "var(--bg-card)", borderColor: "var(--border-primary)" }}
+      >
+        <h3 className="text-sm font-semibold uppercase tracking-wide mb-4" style={{ color: "var(--text-muted)" }}>
+          Device to Flash
+        </h3>
+        <div className="grid grid-cols-2 gap-3 mb-5">
+          <div>
+            <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>Serial Number</p>
+            <p className="text-sm font-mono" style={{ color: "var(--text-primary)" }}>{device.serial_number}</p>
+          </div>
+          <div>
+            <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>Board</p>
+            <p className="text-sm" style={{ color: "var(--text-primary)" }}>
+              {BOARD_TYPE_LABELS[device.hw_type] || device.hw_type} v{device.hw_version}
+            </p>
+          </div>
+        </div>
+
+        {!webSerialAvailable && (
+          <div
+            className="text-sm rounded-md p-3 mb-4 border"
+            style={{ backgroundColor: "#2e1a00", borderColor: "#fb923c", color: "#fb923c" }}
+          >
+            Web Serial API not available. Use Chrome or Edge on a desktop system.
+          </div>
+        )}
+
+        <ErrorBox msg={error} />
+        {error && <div className="h-3" />}
+
+        {(flashing || nvsProgress > 0) && (
+          <div className="space-y-3 mb-5">
+            <ProgressBar label="NVS Partition (0x9000)" percent={nvsProgress} />
+            <ProgressBar label="Firmware (0x10000)" percent={fwProgress} />
+          </div>
+        )}
+
+        {log.length > 0 && (
+          <div
+            className="rounded-md border p-3 mb-4 font-mono text-xs overflow-y-auto max-h-36 space-y-0.5"
+            style={{
+              backgroundColor: "var(--bg-primary)",
+              borderColor: "var(--border-secondary)",
+              color: "var(--text-muted)",
+            }}
+          >
+            {log.map((line, i) => (
+              <div key={i}>{line}</div>
+            ))}
+          </div>
+        )}
+
+        {!flashing && (
+          <button
+            onClick={handleFlash}
+            disabled={!webSerialAvailable || connecting}
+            className="flex items-center gap-2 px-5 py-2 text-sm rounded-md font-medium hover:opacity-90 transition-opacity cursor-pointer disabled:opacity-50"
+            style={{ backgroundColor: "var(--btn-primary)", color: "var(--text-white)" }}
+          >
+            <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13 10V3L4 14h7v7l9-11h-7z" />
+            </svg>
+            {connecting ? "Connecting…" : "Connect & Flash Device"}
+          </button>
+        )}
+
+        {flashing && nvsProgress < 100 && fwProgress < 100 && (
+          <p className="text-sm" style={{ color: "var(--text-muted)" }}>
+            Flashing in progress — do not disconnect…
+          </p>
+        )}
+      </div>
+
+      <p className="text-xs" style={{ color: "var(--text-muted)" }}>
+        Flash addresses: NVS at 0x9000 · Firmware at 0x10000 · Baud: {FLASH_BAUD}
+      </p>
+    </div>
+  );
+}
+
+// ─── Step 3 — Verify ──────────────────────────────────────────────────────────
+
+function StepVerify({ device, onVerified }) {
+  const [polling, setPolling]   = useState(false);
+  const [timedOut, setTimedOut] = useState(false);
+  const [error, setError]       = useState("");
+  const intervalRef             = useRef(null);
+  const timeoutRef              = useRef(null);
+
+  const startPolling = useCallback(() => {
+    if (polling) return;
+    setPolling(true);
+    setTimedOut(false);
+    setError("");
+
+    const startTime = Date.now();
+
+    intervalRef.current = setInterval(async () => {
+      try {
+        const data = await api.get(`/manufacturing/devices/${device.serial_number}`);
+        if (data.mfg_status === "provisioned") {
+          clearInterval(intervalRef.current);
+          clearTimeout(timeoutRef.current);
+          onVerified(data);
+          return;
+        }
+        // Also accept any last_seen update (heartbeat) as evidence of life
+        if (data.last_seen) {
+          const ts = new Date(data.last_seen).getTime();
+          if (ts > startTime) {
+            clearInterval(intervalRef.current);
+            clearTimeout(timeoutRef.current);
+            // Promote to provisioned
+            try {
+              await api.request(`/manufacturing/devices/${device.serial_number}/status`, {
+                method: "PATCH",
+                body: JSON.stringify({ status: "provisioned", note: "Auto-verified via wizard" }),
+              });
+            } catch (_) {}
+            onVerified({ ...data, mfg_status: "provisioned" });
+            return;
+          }
+        }
+      } catch (err) {
+        // Non-fatal; keep polling
+        setError(err.message);
+      }
+    }, VERIFY_POLL_MS);
+
+    timeoutRef.current = setTimeout(() => {
+      clearInterval(intervalRef.current);
+      setPolling(false);
+      setTimedOut(true);
+    }, VERIFY_TIMEOUT_MS);
+  }, [polling, device.serial_number, onVerified]);
+
+  const stopPolling = () => {
+    clearInterval(intervalRef.current);
+    clearTimeout(timeoutRef.current);
+    setPolling(false);
+  };
+
+  return (
+    <div className="space-y-4">
+      <div
+        className="rounded-lg border p-5"
+        style={{ backgroundColor: "var(--bg-card)", borderColor: "var(--border-primary)" }}
+      >
+        <h3 className="text-sm font-semibold uppercase tracking-wide mb-4" style={{ color: "var(--text-muted)" }}>
+          Waiting for Device
+        </h3>
+
+        <div className="flex flex-col items-center py-6 gap-5">
+          {polling && (
+            <>
+              <svg
+                className="w-12 h-12 animate-spin"
+                style={{ color: "var(--accent)" }}
+                fill="none"
+                viewBox="0 0 24 24"
+              >
+                <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
+                <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
+              </svg>
+              <p className="text-sm text-center" style={{ color: "var(--text-secondary)" }}>
+                Waiting for device to connect…
+                <br />
+                <span className="text-xs" style={{ color: "var(--text-muted)" }}>
+                  Power cycle the device and ensure it can reach the MQTT broker.
+                </span>
+              </p>
+            </>
+          )}
+
+          {!polling && !timedOut && (
+            <p className="text-sm" style={{ color: "var(--text-secondary)" }}>
+              Power cycle the device, then click Start Verification.
+            </p>
+          )}
+
+          {timedOut && (
+            <div
+              className="text-sm rounded-md p-3 border text-center"
+              style={{ backgroundColor: "#2e1a00", borderColor: "#fb923c", color: "#fb923c" }}
+            >
+              Timed out after {VERIFY_TIMEOUT_MS / 1000}s. Check WiFi credentials and MQTT broker connectivity.
+            </div>
+          )}
+        </div>
+
+        {error && !timedOut && (
+          <ErrorBox msg={`Poll error (will retry): ${error}`} />
+        )}
+
+        <div className="flex gap-3 mt-2">
+          {!polling && (
+            <button
+              onClick={startPolling}
+              className="px-5 py-2 text-sm rounded-md font-medium hover:opacity-90 transition-opacity cursor-pointer"
+              style={{ backgroundColor: "var(--btn-primary)", color: "var(--text-white)" }}
+            >
+              {timedOut ? "Retry Verification" : "Start Verification"}
+            </button>
+          )}
+          {polling && (
+            <button
+              onClick={stopPolling}
+              className="px-5 py-2 text-sm rounded-md hover:opacity-80 transition-opacity cursor-pointer"
+              style={{ backgroundColor: "var(--bg-card-hover)", color: "var(--text-secondary)" }}
+            >
+              Stop
+            </button>
+          )}
+        </div>
+      </div>
+
+      <p className="text-xs" style={{ color: "var(--text-muted)" }}>
+        Polling every {VERIFY_POLL_MS / 1000}s · timeout {VERIFY_TIMEOUT_MS / 1000}s
+      </p>
+    </div>
+  );
+}
+
+// ─── Step 4 — Done ────────────────────────────────────────────────────────────
+
+function StepDone({ device, startedAt, onProvisionNext }) {
+  const navigate  = useNavigate();
+  const elapsed   = startedAt ? Math.round((Date.now() - startedAt) / 1000) : null;
+
+  const formatElapsed = (sec) => {
+    if (sec < 60) return `${sec}s`;
+    return `${Math.floor(sec / 60)}m ${sec % 60}s`;
+  };
+
+  return (
+    <div className="space-y-4">
+      <div
+        className="rounded-lg border p-6"
+        style={{ backgroundColor: "var(--bg-card)", borderColor: "var(--border-primary)" }}
+      >
+        <div className="flex flex-col items-center py-4 gap-4">
+          <div
+            className="w-16 h-16 rounded-full flex items-center justify-center"
+            style={{ backgroundColor: "#0a2e2a" }}
+          >
+            <svg className="w-8 h-8" style={{ color: "#4dd6c8" }} fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2.5} d="M5 13l4 4L19 7" />
+            </svg>
+          </div>
+          <div className="text-center">
+            <h3 className="text-lg font-bold" style={{ color: "var(--text-heading)" }}>Device Provisioned</h3>
+            <p className="text-sm mt-1" style={{ color: "var(--text-muted)" }}>
+              {device.serial_number} is live.
+            </p>
+          </div>
+        </div>
+
+        <div
+          className="grid grid-cols-2 gap-4 rounded-md p-4 mb-5"
+          style={{ backgroundColor: "var(--bg-primary)" }}
+        >
+          <div>
+            <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>Serial Number</p>
+            <p className="text-sm font-mono" style={{ color: "var(--text-primary)" }}>{device.serial_number}</p>
+          </div>
+          <div>
+            <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>Board Type</p>
+            <p className="text-sm" style={{ color: "var(--text-primary)" }}>
+              {BOARD_TYPE_LABELS[device.hw_type] || device.hw_type} v{device.hw_version}
+            </p>
+          </div>
+          <div>
+            <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>Status</p>
+            <StatusBadge status={device.mfg_status} />
+          </div>
+          {elapsed !== null && (
+            <div>
+              <p className="text-xs uppercase tracking-wide mb-0.5" style={{ color: "var(--text-muted)" }}>Time Taken</p>
+              <p className="text-sm" style={{ color: "var(--text-primary)" }}>{formatElapsed(elapsed)}</p>
+            </div>
+          )}
+        </div>
+
+        <div className="flex flex-wrap gap-3">
+          <button
+            onClick={onProvisionNext}
+            className="px-5 py-2 text-sm rounded-md font-medium hover:opacity-90 transition-opacity cursor-pointer"
+            style={{ backgroundColor: "var(--btn-primary)", color: "var(--text-white)" }}
+          >
+            Provision Next Device
+          </button>
+          <button
+            onClick={() => navigate(`/manufacturing/devices/${device.serial_number}`)}
+            className="px-4 py-2 text-sm rounded-md hover:opacity-80 transition-opacity cursor-pointer"
+            style={{ backgroundColor: "var(--bg-card-hover)", color: "var(--text-secondary)" }}
+          >
+            View in Inventory
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+// ─── Main Wizard ──────────────────────────────────────────────────────────────
+
+export default function ProvisioningWizard() {
+  const navigate   = useNavigate();
+  const [step, setStep]         = useState(1);
+  const [device, setDevice]     = useState(null);
+  const [startedAt, setStartedAt] = useState(null);
+
+  const handleDeviceSelected = (dev) => {
+    setDevice(dev);
+    setStartedAt(Date.now());
+    setStep(2);
+  };
+
+  const handleFlashed = () => {
+    setStep(3);
+  };
+
+  const handleVerified = (updatedDevice) => {
+    setDevice(updatedDevice);
+    setStep(4);
+  };
+
+  const handleProvisionNext = () => {
+    setDevice(null);
+    setStartedAt(null);
+    setStep(1);
+  };
+
+  return (
+    <div className="max-w-2xl">
+      <div className="flex items-center gap-3 mb-6">
+        <button
+          onClick={() => navigate("/manufacturing")}
+          className="text-sm hover:opacity-80 transition-opacity cursor-pointer"
+          style={{ color: "var(--text-muted)" }}
+        >
+          ← Device Inventory
+        </button>
+        <span style={{ color: "var(--text-muted)" }}>/</span>
+        <h1 className="text-xl font-bold" style={{ color: "var(--text-heading)" }}>
+          Provisioning Wizard
+        </h1>
+      </div>
+
+      <StepIndicator current={step} />
+
+      {step === 1 && <StepSelectDevice onSelected={handleDeviceSelected} />}
+      {step === 2 && device && (
+        <StepFlash device={device} onFlashed={handleFlashed} />
+      )}
+      {step === 3 && device && (
+        <StepVerify device={device} onVerified={handleVerified} />
+      )}
+      {step === 4 && device && (
+        <StepDone
+          device={device}
+          startedAt={startedAt}
+          onProvisionNext={handleProvisionNext}
+        />
+      )}
+    </div>
+  );
+}

nginx/nginx.conf

@@ -15,6 +15,18 @@ http {
         listen 80;
         server_name localhost;
 
+        # OTA firmware files — allow browser (esptool-js) to fetch .bin files directly
+        location /ota/ {
+            root /srv;
+            add_header Access-Control-Allow-Origin "*";
+            add_header Access-Control-Allow-Methods "GET, OPTIONS";
+            add_header Access-Control-Allow-Headers "Authorization, Content-Type";
+            if ($request_method = OPTIONS) {
+                add_header Access-Control-Max-Age 3600;
+                return 204;
+            }
+        }
+
         # API requests → FastAPI backend
         location /api/ {
             proxy_pass http://backend;