v0.1.16

Extension contract versions are unchanged: world 5, provider 5, bot 6.

Breaking

• src/worlds/index.ts no longer exports BUILTIN_WORLDS. It exports BUILTIN_WORLD_IDS and
  loadBuiltinWorlds(ids?), which imports the chosen built-in Worlds by id; without ids it loads all five, so the
  launcher and existing deployments behave as before. A downstream assembly picks its Worlds without replacing
  Cortico's files, and a World it leaves out is never imported; an unknown id fails before any import (#237).

Providers

• openai-responses-compat gains options.sendSyntheticReasoning, on by default and set in the reasoning replay
  panel. Off, plaintext replay sends no synthetic reasoning before a function call without an origin. A 400 whose
  body names reasoning_text while it is off says so in the error message (#236).
• The provider probe tells apart a 403 for an unsupported country, region or territory (with OpenAI's
  supported-countries link), a response that arrived but could not be read, an authentication failure and an
  unreachable service (#238).

Console

• Prompts page: a failed save no longer drops the templates after it from the unsaved set; reloading the prefix
  saves first, then refreshes unchanged templates from the server and keeps unsaved edits and their undo history.
  The editor gains CodeMirror undo and redo, per-segment folding, and variables that can be looked up, chosen with
  the keyboard, inserted, dragged in and previewed per segment. In dev:console, consecutive saves no longer
  conflict (#235).
• Extensions page: the npm registry can be set from the marketplace. It is written to extensions/.npmrc and
  used at once for search, details, update checks and installs (internal route GET/POST /api/extensions/registry).
  A failure while reading a registry response now names the host and the cause too (#239).