v0.5.2

• Added Claudaborative Cloud as a connection option, with onboarding help shown when disconnected.
• Added a resizable Compose sidebar so the conversation panel can be widened for longer drafts.
• Made prompts language-aware so translations and editorial actions respect the post's language.
• Discover the WordPress REST API URL from the site instead of assuming /wp-json, for compatibility with custom REST prefixes.
• Fixed commands being clobbered when multiple ran concurrently by storing each under its own key.