* move optional base agents to separate package
* rename main sdk to Core
* reduce dependency graph
Co-authored-by: @rysweet 
Authored-by: @kostapetan 
Co-authored-by: @kopetan-ms

* add subscription response

* fix send subscription response

* add register agent type response

* adding a test

* working on shaping up a test

* appsettins update for backend

* another appsettings

* fixup aspire hosting

* enable AGENT_HOST var from aspire

* add SendMessageAsync

* remove broken test

* test compiles and runs but is not (yet) correct

* subscriptions grain wireup.

* temp assert true.

* remove DI for SubscriptionGrain

* add xlang python code

* add subscription response

* rebond

* Update to .NET 9.0

* Fix Backend project SDK

* Package updates

* get RegisterAgentTypeRequest working

* fix exceptions

* add error handling for requests

* whoops

* send cloud event message type

* processing cloudevents

* trying tosend proto data - doesn't work

* trying to pack proto_data

* fix (#4238)

* pack the Message from agents_events

* format - not sure why these?

* format

* cleanup, error handling, xlang sample publishes messages that can be heard by .NET and vice versa

* format

* sdk version

* sdk vers

* net8

* back to net8

* remove netstandard2

* fix used

* remove unused

* more cleanup

* remove unneeded package

* I'm terrible at writing tests

* deserialize the cloud events and sent them as events

* comment

* cleanup

* await

* Delete dotnet/samples/Hello/Backend/Backend.csproj

unneeded change

* whoops

* merge main python back into here

* revert back to local

* revert some of the helloAgents changes.

* [.NET] Add happy path test for in-memory agent && Simplify HelloAgent example && some clean-up in extension APIs (#4227)

* add happy path test

* remove unnecessary namespace

* fix build error

* Update AgentBaseTests.cs

* revert changes

---------

* fix busted merge from main

* addressing review comments

* make internal

* case sensitive rename step 1

* case sensitive rename step 2

* remove!

---------

Co-authored-by: Peter Chang <petchang@microsoft.com>
Co-authored-by: Reuben Bond <reuben.bond@gmail.com>
Co-authored-by: Eric Zhu <ekzhu@users.noreply.github.com>
Co-authored-by: Xiaoyun Zhang <bigmiao.zhang@gmail.com>

closes #3809 - refactor .NET code foldersand namespaces for better clarity and maintainability

* interim - doesn't work - sharing

* turn off EnforceExtended

* works with dotnet build now... ;-)

* interim progress

* more updates

* make VS happy

* update

* Update AutoGen.Ollama.csproj

* Update Microsoft.AutoGen.Agents.Abstractions.csproj

* Delete dotnet/test/AutoGen.Gemini.Tests/ApprovalTests/FunctionContractExtensionTests.ItGenerateGetWeatherToolTest.received.txt

* fix tests

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Co-authored-by: XiaoYun Zhang <xiaoyuz@microsoft.com>

* add service defaults to Host

* add otel to app host

* ran format

* remove HelloAgents

* moving things around to fit the folder structure/naming conventions


---------

Co-authored-by: Xiaoyun Zhang <bigmiao.zhang@gmail.com>

rename the main classes and mixup folder structure
move some tings from samples into core
cleanup cross-deps
cleanup grpc deps

Moves some shared code from samples into core.
complete/cleanup the rename to Microsoft.AutoGen
adds new projects in AutoGen.Extensions

* dotnet rework

* add dotnet workload update to startup

* fix build

* interim fixup

* this is the stuff that was missing

* renaming the .net classes

* more build fixup

* port dev-team sample WIP

* add proto messages and IHandle to agents

* add github variables

* remove OAgents gh-flow

* remove OAgents library

* add .vs to gitignore

---------

Co-authored-by: Kosta Petan <kostapetan@gmail.com>
Co-authored-by: Ryan Sweet <rysweet@microsoft.com>