Posthive v0.3.0 — Tumblr, Docker Self-hosting & Docs Redesign

What's new in v0.3.0

New platforms

• Tumblr — OAuth 1.0a, NPF text & image posts, tokens never expire

Self-hosting

• Docker Compose — single docker compose up -d --build spins up API + Web
• GHCR images — ghcr.io/astablackclove/posthive-api:latest and posthive-web:latest
• Multi-arch API image (linux/amd64 + linux/arm64)
• Self-hosting docs with Caddy/nginx reverse proxy examples and persistent uploads config

MCP / API

• Added outputSchema to all 10 MCP tools — compatible with ChatGPT plugin submission
• MCP tools now work via Claude.ai OAuth connector and direct API key URL

UI improvements

• Auto-growing per-platform caption and comment textareas
• Wider edit dialog (1280px) with larger preview panel (480px)
• Onboarding page fixes
• Marketing pages redesigned

Docs

• Full docs redesign — section labels, callout icons, top nav tabs, sidebar heading hierarchy, "On this page" right panel
• Self-hosting guide added to /docs
• README updated with Docker quickstart, Railway/Render deploy commands, custom domain examples

Fixes

• Tumblr favicon white background fix
• Prevent duplicate "connected" toast on OAuth callback
• First comment hidden for Tumblr (no comment API)
• Node.js upgraded to 22 (resolves Supabase WebSocket error on Railway)