Add Couchbase as a tool (#264)

* - Added CouchbaseFTSVectorStore as a CrewAI tool.
- Wrote a README to setup the tool.
- Wrote test cases.
- Added Couchbase as an optional dependency in the project.

* Fixed naming in some places. Added docstrings. Added instructions on how to create a vector search index.

* Fixed pyproject.toml

* error handling and response format

- Removed unnecessary ImportError for missing 'couchbase' package.
- Changed response format from a concatenated string to a JSON array for search results.
- Updated error handling to return error messages instead of raising exceptions in certain cases.
- Adjusted tests to reflect changes in response format and error handling.

* Update dependencies in pyproject.toml and uv.lock

- Changed pydantic version from 2.6.1 to 2.10.6 in both pyproject.toml and uv.lock.
- Updated crewai-tools version from 0.42.2 to 0.42.3 in uv.lock.
- Adjusted pydantic-core version from 2.33.1 to 2.27.2 in uv.lock, reflecting the new pydantic version.

* Removed restrictive pydantic version and updated uv.lock

* synced lockfile

* regenerated lockfile

* updated lockfile

* regenerated lockfile

* Update tool specifications for

* Fix test cases

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Co-authored-by: AayushTyagi1 <tyagiaayush5@gmail.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

src/crewai_tools/tools/__init__.py

@@ -5,6 +5,7 @@ from .browserbase_load_tool.browserbase_load_tool import BrowserbaseLoadTool
 from .code_docs_search_tool.code_docs_search_tool import CodeDocsSearchTool
 from .code_interpreter_tool.code_interpreter_tool import CodeInterpreterTool
 from .composio_tool.composio_tool import ComposioTool
+from .couchbase_tool.couchbase_tool import CouchbaseFTSVectorSearchTool
 from .crewai_enterprise_tools.crewai_enterprise_tools import CrewaiEnterpriseTools
 from .csv_search_tool.csv_search_tool import CSVSearchTool
 from .dalle_tool.dalle_tool import DallETool