Replace bun with Node.js (part 1)

- Update package.json scripts to use npm/node instead of bun
- Change shebang in src/index.ts from bun to node
- Add build script to compile TypeScript to JavaScript
- Update action.yml to run compiled .js files instead of .ts
- Remove bun.lock and add package-lock.json
- Update RELEASE.md documentation to reference npm
- Remove bun engine requirement from package.json
- Include compiled JavaScript files for GitHub Actions execution

Note: Workflow files will be updated in a follow-up commit

Addresses AU-14631

Author: justinxu421

RELEASE.md

@@ -8,13 +8,13 @@ Use the built-in npm scripts for easy version bumping:
 
 ```bash
 # For patch releases (bug fixes): 0.1.0 -> 0.1.1
-bun run version:patch
+npm run version:patch
 
 # For minor releases (new features): 0.1.0 -> 0.2.0
-bun run version:minor
+npm run version:minor
 
 # For major releases (breaking changes): 0.1.0 -> 1.0.0
-bun run version:major
+npm run version:major
 ```
 
 These scripts will:
@@ -31,13 +31,13 @@ If you prefer manual control:
 1. **Update the version in package.json:**
 
    ```bash
-   bun version 0.1.1  # or whatever version you want
+   npm version 0.1.1  # or whatever version you want
    ```
 
 2. **Type check the project:**
 
    ```bash
-   bun run typecheck
+   npm run typecheck
    ```
 
 3. **Commit the changes:**
@@ -93,7 +93,7 @@ This allows users to pin to major versions for automatic updates:
 
 **Type check failures:**
 
-- Run `bun run typecheck` locally to check for TypeScript errors
+- Run `npm run typecheck` locally to check for TypeScript errors
 - Ensure all dependencies are properly installed
 
 **Release not created:**

action.yml

@@ -60,12 +60,8 @@ runs:
     - name: Setup Auggie
       run: npm install -g @augmentcode/auggie
       shell: bash
-    - name: Setup Bun
-      uses: oven-sh/setup-bun@735343b667d3e6f658f44d0eca948eb6282f2b76 # v2.0.2
-      with:
-        bun-version: latest
     - name: Run Augment Agent
-      run: bun run $GITHUB_ACTION_PATH/src/index.ts
+      run: node $GITHUB_ACTION_PATH/src/index.js
       shell: bash
       env:
         INPUT_AUGMENT_SESSION_AUTH: ${{ inputs.augment_session_auth }}