[Feature]: New Problem Templates

[Syakyr]

Query Brief

To create problem templates in reducing the time taken to generate a working pipeline.
These include:

• NLP
• Time Series
• LLM

[Syakyr]

LLM problem template can be created to ingest the guide site and answer queries using a light serving model like Gemma 3:1b (vLLM/SGLang) while using ChromaDB as the vector database, with potential chunking if needed.