Initial commit: Leopost Full — merge di Leopost, Post Generator e Autopilot OS

- Backend FastAPI con multi-LLM (Claude/OpenAI/Gemini)
- Publishing su Facebook, Instagram, YouTube, TikTok
- Calendario editoriale con awareness levels (PAS, AIDA, BAB...)
- Design system Editorial Fresh (Fraunces + DM Sans)
- Scheduler automatico, gestione commenti AI, affiliate links

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/index.css

@@ -0,0 +1,25 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,wght@0,400;0,600;0,700;1,400&family=DM+Sans:wght@400;500;600&display=swap');
+
+:root {
+  --coral: #FF6B4A;
+  --cream: #FAF8F3;
+  --ink: #1A1A2E;
+  --muted: #8B8B9A;
+  --surface: #FFFFFF;
+  --border: #E8E4DE;
+}
+
+body {
+  background-color: var(--cream);
+  color: var(--ink);
+  font-family: 'DM Sans', sans-serif;
+  -webkit-font-smoothing: antialiased;
+}
+
+h1, h2, h3 {
+  font-family: 'Fraunces', serif;
+}