chore: initial project setup with AI usage dashboard for Codex and Devin

Add FastAPI-based monitoring dashboard with support for Codex CLI and Devin API v3 Enterprise consumption tracking. Includes Docker deployment, systemd service configuration, kiosk mode launcher, comprehensive documentation, and demo mode for testing without credentials.

start-kiosk.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env sh
+set -eu
+
+DASHBOARD_URL="${DASHBOARD_URL:-http://localhost:8080}"
+BROWSER=''
+for candidate in chromium chromium-browser google-chrome google-chrome-stable; do
+  if command -v "$candidate" >/dev/null 2>&1; then
+    BROWSER="$candidate"
+    break
+  fi
+done
+if [ -z "$BROWSER" ]; then
+  printf '%s\n' 'No supported Chromium browser found (tried chromium, chromium-browser, google-chrome, google-chrome-stable).' >&2
+  exit 1
+fi
+exec "$BROWSER" --kiosk --noerrdialogs --disable-infobars --disable-session-crashed-bubble "$DASHBOARD_URL"