fix: improve search

[mikewuu]

For general queries, sometimes Homie gets confused about what the user wants, is it tasks? pull requests? code help?

We can get more concise issues by:

• asking AI to classify the question type
• only retrieve docs of the specific/relevant type

[homie-gg]

Here are some pull requests that might be helpful reference for this task:

• fix(AI): use chat gpt-3.5-turbo for classification
• feat: add Task search
• fix(AI): force tool choice to include context when answering

[homie-dev-mike]

Here are some pull requests that might be helpful reference for this task:

• feat(Billing): add new basic plan, and update prices

[mikewuu]

/homie do this

[homie-gg]

Sure, I've started working on this. Will open a PR in a minute once this is ready.

[homie-gg]

Pull request for this: #316