I am looking for an expert developer to build "AI Music Turkey", a comprehensive digital ecosystem connecting AI music producers and listeners. This is a hybrid platform: Part Marketplace, Part Streaming Service, and Part Community Portal. Development Approach: I am open to Bubble.io (preferred for speed) OR Custom Full-Stack (React/Node), provided the code/structure is clean and scalable. KEY DELIVERABLES (Must-Haves): 1. Localized Marketplace & Payments (Crucial) The Goal: Producers upload tracks and sell licenses/downloads. Payment Requirement: You MUST integrate Local Turkish Payment Gateways (Iyzico or PayTR) via API. Standard Stripe integration is not enough. Wallet Logic: System must calculate platform commission vs. artist earnings and allow withdrawal requests. 2. Advanced User Roles & Verification (KYC) Two Main Roles: Producers (Sellers) & Listeners (Buyers). Verification Flow: Producers must fill a detailed form (Real Name, ID Number, Phone, Social Links) and get Admin Approval before selling. Unverified users cannot upload. 3. Media Portal & Content Homepage: Needs to feel like a media hub (Hero Slider for news, "Editor's Pick" lists, "Trending" charts). CMS: An Admin panel to publish Blog posts, Music News, and Site Announcements. 4. Music Streaming Persistent Player: High-quality audio player (like Howler.js) that continues playing while navigating. Security: Prevent direct downloads of unpaid tracks (Secure bucket storage). 5. Community Features Forum: Integrated discussion board with categories. Profiles: Rich user profiles with Banner, Bio, and Portfolio tabs. Acceptance Criteria for Handover: Test Purchase: A successful end-to-end payment transaction using a Turkish Gateway sandbox/test mode. Streaming: Lag-free playback. Admin Rights: Full control over User Approvals, Content (Blog/News), and Financial Reports. Source: Full transfer of Bubble App ownership or Source Code with setup docs. Timeline: Urgent. Please provide examples of Marketplace or Audio/Media apps you have built.