Extension system with server-backed panels#397
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End-to-end extension system that adds panels to Cate via a web frontend
and an optional local server, served through a token-injecting proxy.
- runtime capabilities: HTTP/WS tunneling + a managed server host
(src/runtime/capabilities/{server,tunnel}.ts)
- main: ExtensionManager, ExtensionServerManager, proxy server, catalog
download/install, and the cateHost reverse-API dispatch + storage
- preload: cateHost bridge injected into extension webview guests
- renderer: ExtensionPanel, ExtensionsSettings, useCateHostActionResponder
- shared: manifest/types, cate-host API typings, IPC channels
- docs/extensions.md describing the system
The extension catalog lives in its own repo (0-AI-UG/cate-extensions);
it's gitignored here and only checked out locally for dev/tests, which
skip when that checkout is absent.
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- ci.yml: check out + build 0-AI-UG/cate-extensions before unit tests so the distribution and kitchensink-server suites run against the real artifact instead of skipping. - kitchensinkServer.test: derive the server entry from the manifest command (works for server.js or compiled dist/server.js), guard the manifest read so the file imports without the catalog, and annotate the WebSocket socket 'data' chunk as Buffer (fixes the CI typecheck failure under a stricter @types/node). - distribution.test: read the built dist/catalog index and assert the manifest's declared server entry exists, layout/language-agnostic.
- eslint: ignore examples/ and the gitignored cate-extensions/ checkout (their own JS/TS projects), plus generated dist-runtime/ and local .cate/ worktrees, so lint only covers app source. This was the ubuntu CI lint failure (examples/ sample extensions tripping no-undef). - ci.yml: run the catalog checkout + build only on non-Windows. The catalog repo's bash build.sh resolves a manifest path that breaks under Git-Bash/MSYS on Windows; the extension tests skipIf the catalog is absent, so the Windows leg stays green.
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Adds the extension system end to end: extensions add panels to Cate via a web frontend and an optional local server, served through a token-injecting proxy.
What's in it
src/runtime/capabilities/{server,tunnel}.ts)ExtensionManager,ExtensionServerManager, proxy server, catalog download/install, and thecateHostreverse-API dispatch + per-extension storagecateHostbridge injected into extension webview guestsExtensionPanel,ExtensionsSettings,useCateHostActionRespondercate-hostAPI typings, IPC channelsdocs/extensions.mdcate-extensions
The extension catalog is its own repo (
0-AI-UG/cate-extensions). It's gitignored here and only checked out locally for offline dev/tests. The two suites that use it (distribution.test.ts,kitchensinkServer.test.ts) skip when that checkout is absent. The Kitchen Sink demo's TS conversion is in 0-AI-UG/cate-extensions#1.Tests
typecheckclean; extension + runtime-capabilities suites green.