Phase 14: Chunking & RAG Queries

[nickmarden]

No description provided.

[Copilot]

Pull request overview

This pull request implements Phase 14 of the project: Chunking & RAG (Retrieval-Augmented Generation) Queries. It introduces a complete RAG pipeline with citation support, allowing the system to generate AI-powered answers by retrieving relevant content chunks from the knowledge base and citing sources inline.

Key changes:

• Implemented AI Answer service with RAG pipeline and inline citation support
• Added AnswerSource model to persist citations on FAQ answers
• Created SearchSetting model for configurable RAG parameters with per-space overrides
• Enhanced Q&A Wizard with prompt templates, similar questions feature, and source attribution

Reviewed changes

Copilot reviewed 57 out of 57 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
app/services/search/ai_answer_service.rb	New service implementing RAG pipeline with vector/keyword search and citation extraction
app/services/qa_wizard_prompt_service.rb	New service for building Q&A Wizard prompts with variable interpolation
app/models/search_setting.rb	New model for storing global search/RAG settings as key-value pairs
app/models/answer_source.rb	New model for persisting citation sources on answers
app/controllers/spaces/qa_wizard_controller.rb	Enhanced with RAG integration, similar questions feature, and source parsing
app/controllers/search_controller.rb	Added ai_answer endpoint for generating AI-powered answers
app/helpers/markdown_helper.rb	Added preprocess_lists for fixing LLM-generated markdown formatting
app/helpers/citation_helper.rb	New helper for converting inline citations to clickable links
app/views/search/index.html.erb	Added AI Answer panel with expandable content
app/views/spaces/qa_wizard/*.html.erb	Enhanced with sources display, similar questions, and improved interactivity
db/migrate/*	Added search_settings, answer_sources tables and new space columns
spec/*	Comprehensive test coverage for all new services and features

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