Fix TypeScript declaration file naming for Foxglove extension build

[Copilot]

The Foxglove extension build failed with TS2345 error because TypeScript couldn't resolve type definitions for the imported WASM module. The declaration file was named cloudini_wasm.d.ts but the code imports cloudini_wasm_single.js, causing a name mismatch.

Changes

• Renamed declaration file: cloudini_wasm.d.ts → cloudini_wasm_single.d.ts to match the imported JS module
• Updated type import: PointCloudConverter.tsx now imports from "./cloudini_wasm_single"
• Fixed module declaration: Changed from declare module "./cloudini_wasm_single.js" wrapper to proper default export
• Updated tsconfig.json: Reference to renamed declaration file
• Added to .gitignore: *.foxe build artifacts

The fix aligns with TypeScript's automatic type resolution convention where foo.d.ts provides types for foo.js.

// Before (doesn't work - name mismatch)
import CloudiniModule from "./cloudini_wasm_single.js";
import type { CloudiniWasmModule } from "./cloudini_wasm";  // Can't find types

// After (works - names match)
import CloudiniModule from "./cloudini_wasm_single.js";
import type { CloudiniWasmModule } from "./cloudini_wasm_single";

Original prompt

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This section details on the original issue you should resolve

<issue_title>Error and fix for building .foxe file</issue_title>
<issue_description>I tried following the instructions of the cloudini_foxglove READ.md to create the .foxe file.

However, trying to run npm run package resulted in the following error:

user@user_pc:~/git/cloudini/cloudini_foxglove$ npm run package

> foxglove-cloudini-converter@0.11.0 package
> foxglove-extension package -o release/cloudini.foxglove-cloudini-converter-$npm_package_version.foxe

Executing prepublish script 'npm run foxglove:prepublish'...

> foxglove-cloudini-converter@0.11.0 foxglove:prepublish
> foxglove-extension build --mode production

Building...
Error: build failed: Errors:
[tsl] ERROR in /home/user/git/cloudini/cloudini_foxglove/src/PointCloudConverter.tsx(10,48)
      TS2345: Argument of type '(module: CloudiniWasmModule) => void' is not assignable to parameter of type '(value: {}) => void | PromiseLike<void>'.
  Types of parameters 'module' and 'value' are incompatible.
    Type '{}' is missing the following properties from type 'CloudiniWasmModule': _cldn_ComputeCompressedSize, _cldn_DecodeCompressedData, _cldn_DecodeCompressedMessage, _cldn_GetDecompressedSize, and 12 more.
    at /home/user/git/cloudini/cloudini_foxglove/node_modules/create-foxglove-extension/dist/build.js:65:28
    at /home/user/git/cloudini/cloudini_foxglove/node_modules/create-foxglove-extension/node_modules/webpack/lib/HookWebpackError.js:67:2
    at Hook.eval [as callAsync] (eval at create (/home/user/git/cloudini/cloudini_foxglove/node_modules/tapable/lib/HookCodeFactory.js:31:10), <anonymous>:6:1)
    at Hook.CALL_ASYNC_DELEGATE [as _callAsync] (/home/user/git/cloudini/cloudini_foxglove/node_modules/tapable/lib/Hook.js:21:14)
    at Cache.shutdown (/home/user/git/cloudini/cloudini_foxglove/node_modules/create-foxglove-extension/node_modules/webpack/lib/Cache.js:154:23)
    at /home/user/git/cloudini/cloudini_foxglove/node_modules/create-foxglove-extension/node_modules/webpack/lib/Compiler.js:1379:15
    at Hook.eval [as callAsync] (eval at create (/home/koen/git/cloudini/cloudini_foxglove/node_modules/tapable/lib/HookCodeFactory.js:31:10), <anonymous>:6:1)
    at Hook.CALL_ASYNC_DELEGATE [as _callAsync] (/home/user/git/cloudini/cloudini_foxglove/node_modules/tapable/lib/Hook.js:21:14)
    at Compiler.close (/home/user/git/cloudini/cloudini_foxglove/node_modules/create-foxglove-extension/node_modules/webpack/lib/Compiler.js:1372:23)
    at /home/user/git/cloudini/cloudini_foxglove/node_modules/create-foxglove-extension/dist/build.js:55:22
Error: npm failed with exit code 1
    at ChildProcess.<anonymous> (/home/user/git/cloudini/cloudini_foxglove/node_modules/create-foxglove-extension/dist/package.js:156:24)
    at ChildProcess.emit (node:events:524:28)
    at ChildProcess._handle.onexit (node:internal/child_process:293:12)

Some AI help suggested that this might be because of a missing .d.ts file. So I tried to see what would happen when I renamed cloudini_wasm.d.ts to cloudini_wasm_single.d.ts and that indeed worked. It then successfully created a .foxe file which I could successfully use to visualize compressed point cloud messages in Foxglove.

I do not understand enough of the processes behind creating the .foxe file, but could it be that there is something missing in the installation process or instructions?</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Error and fix for building .foxe file #43

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