Firebase MVP Backend Setup

I’m building a lean Android MVP called LifeNote and need a Firebase-powered backend put in place quickly. I have already created the Firebase project and will share the API key as soon as we start. What I need you to wire up: • Authentication – enable phone-number OTP login alongside the classic email-and-password flow, making sure both methods land in the same user collection. • Firestore – create tidy, scalable collections for:  – user profiles (name, profile picture URL, bio)  – posts (text or image URL) with sub-collections for likes and comments • Storage – configure buckets and folder paths for profile photos and uploaded post images, then surface the download URLs back to Firestore. • Basic security rules that lock everything to authenticated users only. A quick proof-of-concept is the goal, so clean, well-commented code and a short README explaining setup and endpoints are enough for acceptance. I’m aiming to test the build in my Android client as soon as you push the final commit.

Project ID: 40451279