[feat] Add BotBuilder Plugin package, sample and tests

[MehakBindra]

• Added BotBuilderPlugin (overrides http plugin's on_activity_request)
• Refactored HttpPlugin to easily extend to botbuilder without code duplication
• Added a test sample
• Added unit tests
• Added HttpPluginOptions to be able to extend easily
• Moved jwt validation initialization to on init in http plugin to leverage DI for credentials

[Copilot]

Pull Request Overview

This PR adds a new microsoft-teams-botbuilder package to enable backward compatibility with legacy Microsoft Bot Framework bots. The integration allows existing bots built with the BotBuilder SDK to work within the new Microsoft Teams AI Library architecture.

Key Changes

• Introduces the microsoft-teams-botbuilder package with a plugin that bridges BotBuilder SDK and the Teams Apps framework
• Adds a test application demonstrating BotBuilder integration with the new framework
• Refactors the HTTP plugin to expose response handling methods for plugin extensibility

Reviewed Changes

Copilot reviewed 11 out of 13 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
uv.lock	Adds dependency lock entries for the new botbuilder package, test application, and required Bot Framework SDK dependencies (botbuilder-core, botbuilder-integration-aiohttp, etc.)
packages/botbuilder/pyproject.toml	Defines the new microsoft-teams-botbuilder package with dependencies on Bot Framework SDK and Teams packages
packages/botbuilder/src/microsoft/teams/botbuilder/botbuilder_plugin.py	Implements the BotBuilderPlugin that integrates Bot Framework adapters and handlers with the Teams Apps framework
packages/botbuilder/src/microsoft/teams/botbuilder/__init__.py	Exports the BotBuilderPlugin and BotBuilderPluginOptions for public API
packages/botbuilder/tests/test_botbuilder_plugin.py	Provides comprehensive test coverage for the BotBuilderPlugin functionality
tests/botbuilder/src/main.py	Example test application demonstrating BotBuilder and Teams framework integration
tests/botbuilder/pyproject.toml	Configuration for the botbuilder test application
packages/apps/src/microsoft/teams/apps/http_plugin.py	Refactors response handling into a protected method for extensibility
pyrightconfig.json	Adds the new botbuilder package to type checking configuration
pyproject.toml	Registers the new package in the workspace
README.md	Documents the new package and applies minor formatting fixes

[heyitsaamir]

Code looks good. Sample could use work! TY!

[heyitsaamir]

Looks good!
Asking for a comment, and I still don't fully understand the app_id thing. Why do we need it?