fix: add missing improvements from PR #1163 to PR #1162

[devin-ai-integration]

JavaScript Examples Documentation Improvements

This PR adds missing documentation improvements from PR #1163 to PR #1162, including:

• Added comprehensive README.md for portfolio-generator example
• Updated dependency documentation across examples
• Fixed readme filename in market_research_agent
• Added environment variable setup instructions
• Documented all required API keys and their purposes

Testing

• Verified all JavaScript examples for missing dependencies
• Confirmed environment variable documentation is complete
• Checked package.json consistency with imports
• Validated README instructions for each example

Link to Devin run: https://app.devin.ai/sessions/1b0118802a7a41f28415288dd2fe7b75

[devin-ai-integration]

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Name	Status	Preview	Comments	Updated (UTC)
composio	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 9, 2025 1:55pm

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JS SDK Coverage Report

📊 Coverage report for JS SDK can be found at the following URL:
https://pub-92e668239ab84bfd80ee07d61e9d2f40.r2.dev/coverage-12691312855/coverage/index.html

📁 Test report folder can be found at the following URL:
https://pub-92e668239ab84bfd80ee07d61e9d2f40.r2.dev/html-report-12691312855/html-report/report.html

[Prat011]

readmes added, looks good

[entelligence-ai-pr-reviews]

Documentation: The changes made to the README file improve clarity by listing the required dependencies directly. However, the instructions for creating a .env file and adding API keys have been removed, which might be necessary for users to successfully set up the project. Consider re-adding these instructions to ensure users have all the necessary setup information.

🔧 Suggested Code Diff:

 pnpm install ```
 
+3. Create a `.env` file in this directory and add your Composio API key:
+   ```
+   COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY
+   OPENAI_API_KEY=YOUR_OPENAI_API_KEY
+   ```
 
 Required dependencies:
 - `@ai-sdk/openai`: For OpenAI model integration
 - `ai`: For text generation functionality
 - `composio-core`: For Composio toolset and entity management
 - `dotenv`: For environment variable management

📝 Committable Code Suggestion

‼️ Ensure you review the code suggestion before committing it to the branch. Make sure it replaces the highlighted code, contains no missing lines, and has no issues with indentation.

Suggested change

	pnpm install
	```
	3. Create a `.env` file in this directory and add your Composio API key:
	Required dependencies:
	- `@ai-sdk/openai`: For OpenAI model integration
	- `ai`: For text generation functionality
	- `composio-core`: For Composio toolset and entity management
	- `dotenv`: For environment variable management
	pnpm install
	3. Create a `.env` file in this directory and add your Composio API key:

COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY
OPENAI_API_KEY=YOUR_OPENAI_API_KEY

Required dependencies:
- `@ai-sdk/openai`: For OpenAI model integration
- `ai`: For text generation functionality
- `composio-core`: For Composio toolset and entity management
- `dotenv`: For environment variable management

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