Custom product labels, video embed codes, and editor fixes

📦 Products and media

• New Product type label you can edit any time. Products → your product → Settings → General has a new "Product type label" field (for example "Webinar" instead of "Course"). Labeled products get their own section and filter chip in the customer library, their own chip in the community Materials tab, and their own group in the product list's type filter.
• New Embed Media Library videos on any website. Open a video in the Media Library and use Embed: a responsive player snippet with a "Copy embed code" button, ready to paste into any page's HTML.
• Improved Access export with separate start and end dates. The product Access → Export CSV now carries accessStart and accessEnd as separate columns instead of one combined period, so the list filters cleanly in Excel or Sheets.

✍️ Editor

• Fixed Slash commands open the Media Library. Typing / and picking Image, Video or File in a lesson or knowledge-base editor opens the Media Library picker instead of asking for a raw URL.
• Fixed Centered text stays centered for students. Text and headings aligned in the lesson editor render with the same alignment in the course view.
• Fixed Callout emoji picker and : autocomplete. The callout block offers the full searchable emoji library, and typing :fire suggests emoji inline. The non-working "AI" entry was removed from the slash menu.
• Fixed Uploads that used to fail. Direct file uploads in the lesson editor complete again (they used to reach 100% and disappear), .m4a audio lessons play in Firefox, and file names with accented characters uploaded from macOS display correctly.

🛒 Checkout

• Fixed Express payments in embedded checkouts. Apple Pay, Google Pay and Link buttons now work in checkouts embedded on external sites with the Zanfia script.
• Fixed Checkout under strict Safari settings. The checkout no longer shows an error screen in Safari with "Block all cookies" enabled or inside sandboxed iframes.

🏘️ Community

• Improved Clear hint when gamification is off. The Overview cards for activity, levels and ranking explain they are built on XP and offer a one-click way to enable gamification, instead of a misleading "no activity".
• Fixed Circle connection on new workspaces. Connecting Circle no longer fails on a workspace that has never connected any integration.

🔌 API and MCP

• API AI agents for community members. Members can mint an API key in Settings → Developer on your platform and connect an MCP client (Claude, ChatGPT or any agent) with the ready-made claude mcp add command shown next to the key. The member server exposes only what members can do themselves: read channels and posts, write their own posts, comments and messages, and only in communities where member API access is enabled. Learn more
• API Updates feed and notifications for agents. GET /communities/{id}/updates?since= returns everything new since a cursor in one call (posts, comments, chat), and GET /communities/{id}/notifications exposes the member's notification feed; both are also MCP tools.
• API Rate limits. Member keys: 60 reads and 10 writes per minute, up to 10 active keys per workspace. Workspace keys: 300 reads and 120 writes per minute. Responses carry RateLimit-* headers and Retry-After on 429.