docs(cookbook): add missing ddgs dependency to smolagents integration

[meatballg1210]

Problem

The smolagents integration notebook uses DuckDuckGoSearchTool in Step 4,
but the install command in Step 1 does not include the ddgs package.

ddgs is listed under smolagents' toolkit optional dependency group
(see pyproject.toml),
not under telemetry, so it is not installed by smolagents[telemetry].

This causes ModuleNotFoundError: No module named 'ddgs' when users run
DuckDuckGoSearchTool().

Verification

Tested in a clean Google Colab environment:

• Without ddgs: DuckDuckGoSearchTool() fails with ModuleNotFoundError
• With ddgs added: works correctly

Changes

Added ddgs to the pip install command in Step 1.

Disclaimer: Experimental PR review

Greptile Summary

This PR adds ddgs as an explicit dependency to the smolagents integration notebook's install step, fixing a ModuleNotFoundError that users hit when running DuckDuckGoSearchTool() in Step 4. The fix is correct — ddgs is part of smolagents[toolkit], not smolagents[telemetry], so it was never installed by the existing command.

Confidence Score: 5/5

Safe to merge — single-line dependency addition that fixes a confirmed runtime error for notebook users.

The change is minimal and targeted: one package added to one install cell. The fix is verified correct by the author and consistent with smolagents' published dependency structure. No logic or API changes introduced.

No files require special attention.

Important Files Changed

Filename	Overview
cookbook/integration_smolagents.ipynb	Adds ddgs to the pip install command to satisfy the DuckDuckGoSearchTool dependency used later in the notebook.

Sequence Diagram

sequenceDiagram
    participant User as Notebook User
    participant pip as pip install
    participant smolagents as smolagents[telemetry]
    participant ddgs as ddgs
    participant Tool as DuckDuckGoSearchTool

    User->>pip: %pip install ... smolagents[telemetry] ddgs
    pip->>smolagents: install telemetry extras
    pip->>ddgs: install ddgs (NEW)
    User->>Tool: DuckDuckGoSearchTool()
    ddgs-->>Tool: module available ✓
    Tool-->>User: search results

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[meatballg1210]

Hi maintainers 👋 Quick update: the CLA has been signed and that check is now passing . The remaining CI workflows and Vercel deployment still need approval from your side. It would be great if someone could approve them when you have a moment. Happy to make any changes if needed. Thanks!