v1.0.0-beta.19

Aether 1.0.0-beta.19

New: My Servers extension (official)

Pick an instance and jump straight into the game.

• Servers tab - your saved servers with live status (MOTD, players, ping).
  Hit Play to launch and auto-connect.
• Worlds tab - your singleplayer worlds with last-played dates. Hit
  Play to launch directly into the world (Minecraft 1.20+).
• Server lists load fast and revisits are instant thanks to concurrent
  pinging with per-server timeouts plus smart caching.

New: extension APIs for server & launch features

• servers:list / ping / listWithStatus (bulk ping, cached),
  servers:manage (create/delete/read/write server files),
  servers:process (start/stop/console/EULA, max 2 servers),
  saves:list (world metadata), instances:launch (quick-connect).
• Aether-SDK 1.2.0 published with full types, permission probes, and a
  createIframeBridge() helper that bakes in the correct UI↔backend
  messaging rules.

Fixed

• Extension UIs timing out with "Request timed out" due to postMessage
  origin/marker mismatches - messaging rules corrected and documented.
• Server rows showing null • offline - bridge structs now expose the
  documented lowercase field names.
• Restored the truncated Skin Maker backend script.
• Themes, game console (Log4j parsing, scroll, preserved logs), checksum
  verification, macOS titlebars/text selection/clipping, dropdown
  behaviour, memory labels, and Modrinth instance filtering (see
  CHANGELOG for the full list).

For extension developers

See docs/API.md (servers, worlds, quick-launch), docs/SERVER_MANAGER_UI.md
(corrected IPC protocol - read §3 before building a sidebar UI), and the
My Servers source in extensions-src/my-servers/ as a reference implementation.

• Feature/servers api by @wayback09 in #42

Full Changelog: v1.0.0-beta.18...v1.0.0-beta.19