fix(web): externalize code-map and esbuild to fix Render build

- Remove code-map re-export from SDK index.ts (web doesnt need it)
- Add webpack externals for @codebuff/code-map and esbuild
- Fixes WASM module parsing errors during Next.js build

Author: brandonkachen

sdk/src/index.ts

@@ -19,9 +19,6 @@ export { buildUserMessageContent } from '../../packages/agent-runtime/src/util/m
 export type { AgentDefinition } from '../../common/src/templates/initial-agents-dir/types/agent-definition'
 export type { ToolName } from '../../common/src/tools/constants'
 
-// Re-export code analysis functionality
-export * from '../../packages/code-map/src/index'
-
 export type {
   ClientToolCall,
   ClientToolName,

web/next.config.mjs

@@ -35,6 +35,16 @@ const nextConfig = {
       'async_hooks',
     )
 
+    // Externalize code-map package to avoid bundling tree-sitter WASM files
+    // The web app doesn't need code-map functionality (only SDK CLI tools do)
+    config.externals.push(
+      '@codebuff/code-map',
+      '@codebuff/code-map/parse',
+      '@codebuff/code-map/languages',
+      /^@codebuff\/code-map/,
+      'esbuild', // Used by SDK's load-agents.ts
+    )
+
     // Suppress contentlayer webpack cache warnings
     config.infrastructureLogging = {
       level: 'error',