v1.8.0

### New features ⭐️
* We added visualization method to display the agent' structure as a tree! 🌳 by @aymeric-roucher in https://github.com/huggingface/smolagents/pull/470
<img width="696" alt="image" src="https://github.com/user-attachments/assets/1e2d4011-6ea7-4ef7-9601-f934d9201788" />

* We vastly simplified managed agents in https://github.com/huggingface/smolagents/pull/484
    * We've removed the ManagedAgents class: directly provide `name` and `description` attributes to your agent to make it work as a managed agent ! Check an example here.
* We released Open Deep Research in https://github.com/huggingface/smolagents/pull/317!

### Fixes 🔧
* Bump dev version: v1.8.0.dev0 by @albertvillanova in https://github.com/huggingface/smolagents/pull/451
* Add ToC and CLI docs by @merveenoyan in https://github.com/huggingface/smolagents/pull/455
* Fix link to Helium repository in README.md by @dross20 in https://github.com/huggingface/smolagents/pull/471
* Remove default max_tokens for all models by @albertvillanova in https://github.com/huggingface/smolagents/pull/475
* Improve Readme: shorter intro, VLMs, MCP, etc by @aymeric-roucher in https://github.com/huggingface/smolagents/pull/459
* Fix SpeechToTextTool new instance by @albertvillanova in https://github.com/huggingface/smolagents/pull/478
* Allow flatten_messages_as_text to be pushed via LiteLLMModel to fix Ollama integration by @sysradium in https://github.com/huggingface/smolagents/pull/406
* Fixed demo typo in README.md by @hanteed in https://github.com/huggingface/smolagents/pull/481
* Added `HfApiModel` import to `web browser example` by @sergiopaniego in https://github.com/huggingface/smolagents/pull/461
* Minor Fix tool push_to_hub by @keetrap in https://github.com/huggingface/smolagents/pull/460
* Fix link in README.md by @vanrohan in https://github.com/huggingface/smolagents/pull/496
* Fix undefined `step_number` in single_step run by @taha-yassine in https://github.com/huggingface/smolagents/pull/495
* Bump litellm to 1.60.2 (fixes #34) by @taha-yassine in https://github.com/huggingface/smolagents/pull/488
* Initialize step_number attribute by @albertvillanova in https://github.com/huggingface/smolagents/pull/497
* Suppress terminal logging in CI tests by @albertvillanova in https://github.com/huggingface/smolagents/pull/504
* Fix link in README.md by @Ryanb58 in https://github.com/huggingface/smolagents/pull/492
* Test PrintContainer by @albertvillanova in https://github.com/huggingface/smolagents/pull/515
* Add missing default tools to reference docs by @touseefahmed96 in https://github.com/huggingface/smolagents/pull/516
* Refactor prompts by @aymeric-roucher in https://github.com/huggingface/smolagents/pull/502
* Fix Typo by @rehanzo in https://github.com/huggingface/smolagents/pull/529
* Test HfApiModel call with custom_role_conversions by @albertvillanova in https://github.com/huggingface/smolagents/pull/517
* Set MAX_WHILE_ITERATIONS as module variable by @albertvillanova in https://github.com/huggingface/smolagents/pull/520
* add self.logger = logger for e2b_executor by @femto in https://github.com/huggingface/smolagents/pull/537
* Create simpler example open-deep-research by @aymeric-roucher in https://github.com/huggingface/smolagents/pull/534
* Support disabling logging to terminal by @albertvillanova in https://github.com/huggingface/smolagents/pull/512
* Fix installation with data files by @albertvillanova in https://github.com/huggingface/smolagents/pull/536
* Pin openinference-instrumentation-smolagents >= 0.1.4 by @albertvillanova in https://github.com/huggingface/smolagents/pull/535
* Delete prompts_path argument and use prompt_templates by @albertvillanova in https://github.com/huggingface/smolagents/pull/541
* Fix deprecation warning from importlib.resources.read_text by @albertvillanova in https://github.com/huggingface/smolagents/pull/543
* Delete non-exisiting accelerate extra by @albertvillanova in https://github.com/huggingface/smolagents/pull/539
* Fix some doc examples by @aymeric-roucher in https://github.com/huggingface/smolagents/pull/542
* Test E2B Executor by @albertvillanova in https://github.com/huggingface/smolagents/pull/540

## New Contributors
* @dross20 made their first contribution in https://github.com/huggingface/smolagents/pull/471
* @sysradium made their first contribution in https://github.com/huggingface/smolagents/pull/406
* @hanteed made their first contribution in https://github.com/huggingface/smolagents/pull/481
* @vanrohan made their first contribution in https://github.com/huggingface/smolagents/pull/496
* @taha-yassine made their first contribution in https://github.com/huggingface/smolagents/pull/495
* @Ryanb58 made their first contribution in https://github.com/huggingface/smolagents/pull/492
* @rehanzo made their first contribution in https://github.com/huggingface/smolagents/pull/529
* @femto made their first contribution in https://github.com/huggingface/smolagents/pull/537

**Full Changelog**: https://github.com/huggingface/smolagents/compare/v1.7.0...v1.8.0