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/postcss.config.js

@@ -0,0 +1,6 @@
+export default {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+}