Fix typecheck and pre-existing test failures

- cli/src/pre-init/tree-sitter-wasm.ts: silence TS error for the bun-only
  `with { type: 'file' }` import (TS resolves the .wasm via the package's
  exports map and has no loader for binary assets).
- cli/src/__tests__/integration-tmux.test.ts: explicitly clear
  FREEBUFF_MODE from the tmux global env before running. A prior freebuff
  build or `bun run dev:freebuff` in the same tmux server leaves it set,
  which made the help-output test see the freebuff CLI variant (no
  `--agent` flag) instead of codebuff.
- web/jest.config.cjs: fix react/react-dom moduleNameMapper paths — they
  pointed at `web/node_modules/react` but bun hoists react to the
  workspace root.
- web/jest.setup.js: polyfill TextEncoder/TextDecoder, ReadableStream,
  Request/Response/Headers/fetch from Node + undici. JSDOM lacks these
  globals, and undici (loaded transitively via `next/server`) needs them
  at module-load time.

Author: jahooma

cli/src/__tests__/integration-tmux.test.ts

@@ -69,6 +69,11 @@ describe.skipIf(!tmuxAvailable || !sdkBuilt)(
             }),
           ),
         )
+        // Clear FREEBUFF_MODE from the tmux global env. A previous freebuff
+        // build or `bun run dev:freebuff` invocation in the same tmux server
+        // can leave it set globally, which would make this test see the
+        // freebuff CLI variant (which has no `--agent` flag).
+        await tmux(['set-environment', '-gu', 'FREEBUFF_MODE']).catch(() => {})
       }
     })
 

cli/src/pre-init/tree-sitter-wasm.ts

@@ -7,6 +7,8 @@
 // per the package's split `import`/`require` exports map — returns the build-time
 // absolute path of `tree-sitter.cjs` and fails on user machines.
 
+// @ts-expect-error - Bun's `with { type: 'file' }` returns a string path; TS resolves
+// the .wasm file via web-tree-sitter's exports map and has no loader for it.
 import treeSitterWasmPath from 'web-tree-sitter/tree-sitter.wasm' with {
   type: 'file',
 }

web/jest.config.cjs

@@ -13,8 +13,8 @@ const config = {
     '^@codebuff/internal/env$': '<rootDir>/../packages/internal/src/env.ts',
     '^@codebuff/internal/xml-parser$': '<rootDir>/src/test-stubs/xml-parser.ts',
     '^bun:test$': '<rootDir>/src/test-stubs/bun-test.ts',
-    '^react$': '<rootDir>/node_modules/react',
-    '^react-dom$': '<rootDir>/node_modules/react-dom',
+    '^react$': '<rootDir>/../node_modules/react',
+    '^react-dom$': '<rootDir>/../node_modules/react-dom',
   },
   // Bun-specific tests that use top-level await or bun:test features
   testPathIgnorePatterns: [

web/jest.setup.js

@@ -1 +1,25 @@
 import '@testing-library/jest-dom'
+import { TextDecoder, TextEncoder } from 'node:util'
+import { ReadableStream, WritableStream, TransformStream } from 'node:stream/web'
+
+// JSDOM lacks Node's Web API globals — undici (loaded transitively via
+// `next/server` and `openai`) needs these at module-load time.
+if (typeof globalThis.TextEncoder === 'undefined') {
+  globalThis.TextEncoder = TextEncoder
+}
+if (typeof globalThis.TextDecoder === 'undefined') {
+  globalThis.TextDecoder = TextDecoder
+}
+if (typeof globalThis.ReadableStream === 'undefined') {
+  globalThis.ReadableStream = ReadableStream
+  globalThis.WritableStream = WritableStream
+  globalThis.TransformStream = TransformStream
+}
+if (typeof globalThis.Request === 'undefined') {
+  const undici = require('undici')
+  globalThis.Request = undici.Request
+  globalThis.Response = undici.Response
+  globalThis.Headers = undici.Headers
+  globalThis.fetch = undici.fetch
+  globalThis.FormData = undici.FormData
+}