feat: v1.2.0-alpha — E2E encrypted mesh relay, steganography, relay status polling

Phase 5 mesh networking:
- E2E encrypted TX relay (X25519 + ChaCha20-Poly1305) — non-Archy nodes
  relay encrypted blobs transparently via Meshcore native routing
- Steganographic encoding modes (WeatherStation, SensorNetwork) — traffic
  looks like sensor data on the wire, 0xAA marker, configurable per-node
- Pre-flight Bitcoin Core health check on relay node — specific error codes
  (bitcoin_unreachable, bitcoin_syncing, tx_rejected) instead of generic fails
- mesh.relay-status RPC endpoint — frontend polls for relay result every 3s
- On-Chain / Lightning tabs in Off-Grid Bitcoin panel
- Archy Peers vs Mesh Broadcast relay mode selector
- Mesh view fills viewport (no page scroll), internal panel scrolling
- Version bump to 1.2.0-alpha

Also includes: deploy hardening, container fixes, IndeedHub updates,
boot screen, dashboard improvements, MASTER_PLAN task tracking

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

neode-ui/mock-backend.js

@@ -27,9 +27,13 @@ const docker = new Docker()
 const app = express()
 const PORT = 5959
 
-// Dev mode from environment (setup, onboarding, existing, or default)
+// Dev mode from environment (setup, onboarding, existing, boot, or default)
 const DEV_MODE = process.env.VITE_DEV_MODE || 'default'
 
+// Boot mode: simulate server startup delay
+let BOOT_START_TIME = Date.now()
+const BOOT_DELAY_MS = 25000 // 25 seconds of simulated startup (slower for analysis)
+
 // CORS configuration
 const corsOptions = {
   credentials: true,
@@ -89,6 +93,15 @@ function initializeUserState() {
         passwordHash: MOCK_PASSWORD,
       }
       break
+    case 'boot':
+      // Boot mode: Simulate server startup delay (shows boot screen)
+      // Server responds with 502 for the first 10 seconds, then works like onboarding mode
+      userState = {
+        setupComplete: true,
+        onboardingComplete: false,
+        passwordHash: MOCK_PASSWORD,
+      }
+      break
     default:
       // Default: Fully set up (for UI development)
       userState = {
@@ -748,6 +761,26 @@ app.post('/rpc/v1', (req, res) => {
   const { method, params } = req.body
   console.log(`[RPC] ${method}`)
 
+  // Boot mode: return 502 during simulated startup delay
+  if (DEV_MODE === 'boot') {
+    // Reset boot timer when browser does a fresh page load (server.echo with 'boot' message)
+    if (method === 'server.echo' && params?.message === 'boot-reset') {
+      BOOT_START_TIME = Date.now()
+      console.log(`[Boot] Timer RESET — simulating ${BOOT_DELAY_MS / 1000}s startup`)
+      return res.status(502).json({ error: 'Server starting up (reset)' })
+    }
+    const elapsed = Date.now() - BOOT_START_TIME
+    if (elapsed < BOOT_DELAY_MS) {
+      const secs = Math.round(elapsed / 1000)
+      const total = Math.round(BOOT_DELAY_MS / 1000)
+      console.log(`[Boot] Server starting... ${secs}s / ${total}s`)
+      return res.status(502).json({ error: 'Server starting up' })
+    }
+    if (elapsed < BOOT_DELAY_MS + 2000) {
+      console.log(`[Boot] Server is now READY (took ${Math.round(elapsed / 1000)}s)`)
+    }
+  }
+
   try {
     switch (method) {
       // Authentication endpoints