feat: Add OpenAPI support for the Rocket.Chat chat.sendMessage API

[ahmed-n-abdeltwab]

Description:
This PR integrates OpenAPI support into the Rocket.Chat API, migrate of Rocket.Chat API endpoints to the new OpenAPI pattern. The update includes improved API documentation, enhanced type safety, and response validation using AJV.

Key Changes:

• Implemented the new pattern and added AJV-based JSON schema validation for API.
• Uses the ExtractRoutesFromAPI utility from the TypeScript definitions to dynamically derive the routes from the endpoint specifications.
• Enabled Swagger UI integration for this API.
• Route Methods Chaining for the endpoints.
• This does not introduce any breaking changes to the endpoint logic.

Issue Reference:
Relates to #34983, part of the ongoing OpenAPI integration effort.

Testing:

• Verified that the API response schemas are correctly documented in Swagger UI.
• All tests passed without any breaking changes

Endpoints:

Looking forward to your feedback! 🚀

[dionisio-bot]

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[changeset-bot]

🦋 Changeset detected

Latest commit: ca2fe32

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 41 packages

Name	Type
@rocket.chat/meteor	Patch
@rocket.chat/ddp-client	Patch
@rocket.chat/rest-typings	Patch
@rocket.chat/livechat	Patch
@rocket.chat/mock-providers	Patch
@rocket.chat/ui-contexts	Patch
@rocket.chat/ddp-streamer	Patch
@rocket.chat/federation-matrix	Patch
@rocket.chat/api-client	Patch
@rocket.chat/core-services	Patch
@rocket.chat/http-router	Patch
@rocket.chat/models	Patch
@rocket.chat/web-ui-registration	Patch
@rocket.chat/account-service	Patch
@rocket.chat/authorization-service	Patch
@rocket.chat/omnichannel-services	Patch
@rocket.chat/presence	Patch
rocketchat-services	Patch
@rocket.chat/uikit-playground	Patch
@rocket.chat/fuselage-ui-kit	Patch
@rocket.chat/gazzodown	Patch
@rocket.chat/ui-avatar	Patch
@rocket.chat/ui-client	Patch
@rocket.chat/ui-video-conf	Patch
@rocket.chat/ui-voip	Patch
@rocket.chat/omnichannel-transcript	Patch
@rocket.chat/presence-service	Patch
@rocket.chat/queue-worker	Patch
@rocket.chat/abac	Patch
@rocket.chat/network-broker	Patch
@rocket.chat/omni-core-ee	Patch
@rocket.chat/cron	Patch
@rocket.chat/instance-status	Patch
@rocket.chat/omni-core	Patch
@rocket.chat/server-fetch	Patch
@rocket.chat/media-calls	Patch
@rocket.chat/core-typings	Patch
@rocket.chat/apps	Patch
@rocket.chat/model-typings	Patch
@rocket.chat/license	Patch
@rocket.chat/pdf-worker	Patch

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