Add Pi Research Agent package

Autonomous research agent with web search, source analysis, and report synthesis.
Built on Pi agent core. Available as CLI, programmatic API, and MCP server.

Features:
- 4 built-in tools: web_search, read_url, save_note, synthesize_report
- CLI with TUI and print modes
- Programmatic API via ResearchAgent class
- MCP server with 3 tools: research, quick_search, read_url
- Skills system for custom research behavior
- Automatic .env file loading for API keys
- Configurable max turns, output formats (markdown/JSON/bullet)
- Automatic report saving to research-output/

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,18 @@
+---
+name: Question
+description: Ask a question about Pi Research Agent
+title: "[Question]: "
+labels: question
+---
+
+## Question
+
+What would you like to know?
+
+## Context
+
+Any relevant context that might help answer the question.
+
+## What I've Tried
+
+What have you already tried or researched?