Add LAN dev helper for iPhone against local Mac API (#181)

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: cynarAI <cynarAI@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>

docs/LOCAL-SETUP.md

@@ -79,6 +79,19 @@ Desktop:
 pnpm --filter @rakazo/desktop dev
 ```
 
+### iPhone on the same Wi‑Fi (Mac LAN)
+
+The mobile app can talk to a self-hosted API over **HTTP** on your local network. The API must listen on all interfaces, not only loopback.
+
+```bash
+# sets API_HOST=0.0.0.0 in .env, prints the URL, starts pnpm dev
+bash scripts/dev-mobile-lan.sh
+```
+
+On the iPhone: open evOo → **Custom server** on sign-in → `http://<mac-lan-ip>:3100` (the script prints the IP). Allow **Local Network** when iOS asks.
+
+Optional dev client: `pnpm --filter @rakazo/mobile start` and scan the QR code with Expo Go (you still set the custom server URL in the app).
+
 ## 5. Local models / Ollama seed
 
 ```bash

scripts/dev-mobile-lan.sh

@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+# Start dev stack with the API reachable from an iPhone on the same LAN.
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$ROOT"
+
+if [[ ! -f .env ]]; then
+  echo "Missing .env — run: cp .env.example .env and fill secrets." >&2
+  exit 1
+fi
+
+set_env_var() {
+  local key="$1"
+  local value="$2"
+  if grep -q "^${key}=" .env; then
+    perl -pi -e "s/^\\Q${key}=\\E.*/${key}=${value}/" .env
+  else
+    printf '\n%s=%s\n' "$key" "$value" >> .env
+  fi
+}
+
+lan_ipv4() {
+  local os ip iface
+  os="$(uname -s)"
+  if [[ "$os" == Darwin ]]; then
+    for iface in en0 en1 bridge100; do
+      ip="$(ipconfig getifaddr "$iface" 2>/dev/null || true)"
+      if [[ -n "$ip" ]]; then
+        echo "$ip"
+        return 0
+      fi
+    done
+    return 1
+  fi
+  if command -v ip >/dev/null 2>&1; then
+    ip route get 1.1.1.1 2>/dev/null | awk '{for (i=1;i<=NF;i++) if ($i=="src") { print $(i+1); exit }}'
+    return 0
+  fi
+  hostname -I 2>/dev/null | awk '{print $1}'
+}
+
+set_env_var API_HOST "0.0.0.0"
+
+IP="$(lan_ipv4 || true)"
+PORT="${API_PORT:-3100}"
+
+echo ""
+echo "evOo LAN (iPhone / iPad)"
+echo "  1. Same Wi‑Fi as this machine; allow incoming TCP ${PORT} in the firewall."
+echo "  2. In the evOo app: Sign in → Custom server"
+if [[ -n "$IP" ]]; then
+  echo "  3. Server URL: http://${IP}:${PORT}"
+else
+  echo "  3. Server URL: http://<this-machine-lan-ip>:${PORT}"
+  echo "     (Could not detect LAN IP — check System Settings → Network.)"
+fi
+echo ""
+echo "Starting pnpm dev …"
+exec pnpm dev