[guidelines] fix obvious guideline violations in 10 file(s)

[github-actions]

Files changed

The following 10 workshop files had checkpoint section headings using raw Unicode ✅ instead of the required :white_check_mark: emoji shortcode.

Rule violated

From guidelines.md: "Write checkpoint headings as ## :white_check_mark: Checkpoint so they use the same browser-independent rendering as other icons."

Fixes applied

File	Before	After
workshop/17-add-mcp-tools.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint
workshop/18-share-and-reuse.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint
workshop/19-research-driven-training-node.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint
workshop/20-persistent-memory.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint
workshop/21-inline-sub-agents.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint
workshop/22-error-handling-and-resilience.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint
workshop/23-ab-experiments.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint
workshop/24-self-hosted-runners.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint
workshop/25-audit-and-observability.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint
workshop/26-manage-costs-and-budgets.md	## ✅ Checkpoint	## :white_check_mark: Checkpoint

Auto-fixed by the guidelines-enforcer workflow (schedule mode, round-robin index 17→27).

Warning

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• awmgmcpg

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• expires on Aug 22, 2026, 4:11 AM UTC