Implement full media crawler workflow with Flask backend and Vue frontend.

Add TMDB search and media detail pages, HDHive resource ingestion flow, unified error handling, Docker single-container runtime, and project docs/config updates for local deployment.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker/start.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env sh
+set -eu
+
+BACKEND_PORT="${FLASK_RUN_PORT:-14620}"
+FRONTEND_PORT="${FRONTEND_PORT:-14621}"
+
+cd /app/backend
+python3 app.py &
+BACKEND_PID=$!
+
+cd /app/frontend
+npm run preview -- --host 0.0.0.0 --port "${FRONTEND_PORT}" &
+FRONTEND_PID=$!
+
+cleanup() {
+  kill "${BACKEND_PID}" "${FRONTEND_PID}" 2>/dev/null || true
+}
+
+trap cleanup INT TERM EXIT
+
+wait "${BACKEND_PID}" "${FRONTEND_PID}"