plan: use bun 1

.opencode/plans/1773656570427-mighty-tiger.md

@@ -479,7 +479,7 @@ export * from "./core/index";
 
 ```typescript
 // src/cli.ts
-#!/usr/bin/env node
+#!/usr/bin/env bun
 import { Command } from "commander";
 import { launchMultiModel } from "./core/launch";
 import { closeMultiModel } from "./core/close";
@@ -596,7 +596,7 @@ export { openTool, closeTool };
 // package.json scripts
 {
   "scripts": {
-    "build": "bun build src/index.ts src/cli.ts --outdir dist --target bun --format esm",
+    "build": "bun build src/index.ts src/cli.ts --outdir dist --target bun --format esm --experimental-dts",
     "test": "bun test",
     "prepublishOnly": "bun run build"
   }
@@ -642,7 +642,9 @@ npm install -g @username/opencode-multi-model
 opencode-multi-model open my-session -m openai/gpt-4o
 ```
 
-### As Project Tool (for development)
+### As Project Tool
+
+If you installed it via NPM and want to use it as a project tool, import it from the package:
 
 ```typescript
 // .opencode/tools/multi-model.ts
@@ -650,6 +652,15 @@ import { openTool, closeTool } from "@username/opencode-multi-model"
 export { openTool, closeTool }
 ```
 
+If you are developing this package locally and want to test it in a project without publishing, import via relative paths:
+
+```typescript
+// .opencode/tools/multi-model.ts
+import { openTool } from "../../src/tools/open"
+import { closeTool } from "../../src/tools/close"
+export { openTool, closeTool }
+```
+
 ## Usage
 
 ### Plugin Usage
@@ -773,13 +784,13 @@ This allows testing the tool without publishing to npm.
 3. **CLI Test**: 
    ```bash
    # Test open
-   node dist/cli.js open test-session -m openai/gpt-4o
+   bun dist/cli.js open test-session -m openai/gpt-4o
    
    # Test close
-   node dist/cli.js close test-session
+   bun dist/cli.js close test-session
    
    # Test env var
-   OPENCODE_MULTI_MODEL_BINARY=kilo node dist/cli.js open test-session -m openai/gpt-4o
+   OPENCODE_MULTI_MODEL_BINARY=kilo bun dist/cli.js open test-session -m openai/gpt-4o
    ```
 4. **Plugin Test**: 
    - Link package locally with `bun link`