Make DocQA a one-clickable app implementation

[wukaixingxp]

What does this PR do?

This PR adds a one-clickable app implementation of DocQA example, where user can choose local provider like Ollama or cloud provider like together or fireworks to do RAG. It allows users to install the DocQA app into the Application folder from the DocQA.dmg file. This MacQA app leverages llama-stack new LlamaStackAsLibraryClient feature and make every agentic component in-line. This PR also explains the steps for building this app.

This DocQA app will replace the existing docker solution as the docker solution is not easy to user and maintain.

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you read the contributor guideline,
  Pull Request section?
• Was this discussed/approved via a Github issue? Please add a link
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• Did you make sure to update the documentation with your changes?
• Did you write any new necessary tests?

Thanks for contributing 🎉!

[HamidShojanazeri]

@wukaixingxp I wonder if there is a chance to consolidate app.py and MacA.py?

[wukaixingxp]

@wukaixingxp I wonder if there is a chance to consolidate app.py and MacA.py?

Sure, there is a different behavior regarding how to launch Ollama between MacQA.py and app.py, maybe I can have a system env "USE_DOCKER" to control that.

Update on Jan 13: The merge has been completed in f610415. Please take a look

[wukaixingxp]

@ashwinb I updated the MacQA app to work with v0.1 and this PR is ready for review. Can you take a look at this PR and any feedback is greatly appreciated! CC: @HamidShojanazeri @raghotham

[ashwinb]

@hardikjshah @ehhuang It would be good to have your feedback here. I will take a look at this in a bit too (today.)

[wukaixingxp]

@ashwinb @hardikjshah Gentle reminder on this.. given that this PR has been here for more than a month now.. Thanks! Any feedback is welcomed.

[wukaixingxp]

@HamidShojanazeri I talked to @raghotham last week for this PR review. The idea is to make things simpler so that user can follow, thus we will remove the DockerQA as it is not very easy to use and maintain. Also the UI has been changed from using 'localhost in browser to a python GUI. Here is the modified one-clickable app, please take a look and let me know what do you think.

[wukaixingxp]

Besides the comment from @hardikjshah, there are things need to address: 1. Add Ollama pull then ollama run
2. Missed first word on output display
3. Waiting for this PR to be merged so that we do not do retrieval everytime.
4. Spec file is missing

[wukaixingxp]

Besides the comment from @hardikjshah, there are things need to address: 1. Add Ollama pull then ollama run 2. Missed first word on output display 3. Waiting for this PR to be merged so that we do not do retrieval everytime. 4. Spec file is missing

Now (1) (2) (4) has been fixed, but this PR was not merged in v0.1.4. also v0.1.4 has some small problems: meta-llama/llama-stack#1255, so we need to switch back to v0.1.3. @hardikjshah Please take another look at this PR, thanks!

[wukaixingxp]

@hardikjshah I noticed the this PR has been merged, but given the comment here, I do not think Ollama 1B & 3B can work with builtin::rag::knowledge_search. I would like to just get my PR work with v0.1.3 for now and be able to merged, then we can upgrade this app later to support builtin::rag::knowledge_search

[wukaixingxp]

From my test: 3.3 70B can handle the tool_call well

but 3.1B ollama failed:

[hardikjshah]

leaving a few comments but looks good to go. Going to approve to get it out