Add one-day workshop program page (workshop/day.md) (#1943)

Author: Copilot

workshop/day.md

@@ -0,0 +1,30 @@
+# One-Day Workshop Program
+
+A full-day hands-on experience with GitHub Agentic Workflows — from your first workflow to a live hackathon project.
+
+## Program
+
+| Time | Session |
+|------|---------|
+| 09:30 | **Welcome and setup** — introductions, environment check, and a tour of what you'll build today |
+| 10:00 | **Workshop — Part 1** — build your first agentic workflow: write, compile, run, and iterate ([Start here →](00-welcome.md)) |
+| 11:30 | **Share and reflect** — each participant shows their workflow; group discussion on what surprised you |
+| 12:00 | **Lunch** |
+| 13:00 | **Deep dive — Agenticism** — how agentic workflows shift responsibility from shell scripts to AI reasoning; architecture, safety model, and cost model ([Agentic Workflows Deep Dive →](side-quest-05-02-aw-deep-dive.md)) |
+| 13:30 | **Workshop — Part 2** — go deeper: conditional logic, live data sources, MCP tools, memory, and sub-agents ([Continue →](14-next-steps.md)) |
+| 14:30 | **Share and reflect** — demos of Part 2 workflows; group discussion on patterns and tradeoffs |
+| 15:00 | **Hackathon** — build something real: pick a workflow idea from your own team or repo and ship it |
+| 16:15 | **Share and reflect** — each group demos their hackathon project and explains one decision they made |
+| 16:30 | **Social time** |
+
+## Before You Arrive
+
+Make sure you have completed the [prerequisites](01-prerequisites.md) before the day starts. The morning session moves fast, and environment issues will slow you down.
+
+## Facilitation Notes
+
+**Part 1** covers [Steps 0–12](README.md#curriculum--part-1-build-your-first-workflow): welcome, prerequisites, environment setup, Actions intro, the agentic workflow model, installing `gh-aw`, writing your first workflow, running it, and iterating.
+
+**Part 2** is self-directed. Participants choose their own path through [Steps 14+](README.md#curriculum--part-2-go-deeper) based on what interests them most. Facilitators circulate and help unblock.
+
+**Hackathon** has no prescribed outcome — the goal is one working workflow that solves a real problem. Teams of two or three work well.