Align workshop navigation order for Step 5 cluster and remove Step 26 backward Next link (#1921)

Author: Copilot

workshop/05-agentic-workflows-intro.md

@@ -112,5 +112,5 @@ No. Compile converts `.md` to `.lock.yml`. Runtime output comes from your task b
 </details>
 
 <!-- journey: all -->
-**Next:** [Practice: Recognize Agentic Workflows](05c-agentic-workflows-practice.md)
+**Next:** [How Agentic Workflows Stay Safe](05b-agentic-workflows-security.md)
 <!-- /journey -->

workshop/05b-agentic-workflows-security.md

@@ -58,5 +58,5 @@ For each scenario below, decide whether the **sandbox** or the **safe-output sys
 - [ ] I can explain how the two-layer model makes agentic workflows safe to run on a schedule
 
 <!-- journey: all -->
-**Next:** [Install the gh-aw CLI Extension](06-install-gh-aw.md)
+**Next:** [Practice: Recognize Agentic Workflows](05c-agentic-workflows-practice.md)
 <!-- /journey -->

workshop/05c-agentic-workflows-practice.md

@@ -65,5 +65,5 @@ as an issue with the title "Weekly PR Digest".
 - [ ] I can describe the three parts of an agentic workflow: trigger → agent → safe output
 
 <!-- journey: all -->
-**Next:** [How Agentic Workflows Stay Safe](05b-agentic-workflows-security.md)
+**Next:** [Install the gh-aw CLI Extension](06-install-gh-aw.md)
 <!-- /journey -->

workshop/26-manage-costs-and-budgets.md

@@ -110,5 +110,5 @@ gh aw compile
 - [ ] You identified at least one technique to reduce token consumption
 
 <!-- journey: all -->
-**Next:** [What's Next? Keep Exploring](14-next-steps.md)
+Want to choose another branch from the workshop hub? Return to [What's Next? Keep Exploring](14-next-steps.md).
 <!-- /journey -->

workshop/README.md

@@ -11,8 +11,8 @@ A hands-on workshop that takes you from zero to a fully automated, AI-powered wo
 | 2 | Setup Adventure — Choose one: [A: Codespace](02a-setup-codespace.md), [B: Local Terminal](02b-setup-local.md), **or** [C: Browser (no terminal)](02c-setup-browser.md) |
 | 4 | [What Are GitHub Actions?](04-github-actions-intro.md) |
 | 5 | [What Are Agentic Workflows?](05-agentic-workflows-intro.md) |
-| 5c | [Practice: Recognize Agentic Workflows](05c-agentic-workflows-practice.md) |
 | 5b | [How Agentic Workflows Stay Safe](05b-agentic-workflows-security.md) |
+| 5c | [Practice: Recognize Agentic Workflows](05c-agentic-workflows-practice.md) |
 | 6 | [Install the gh-aw CLI Extension](06-install-gh-aw.md) |
 | 6a | [Codespace Terminal Path — Install gh-aw](06a-install-terminal.md) |
 | 6b | [Local Terminal Path — Install gh-aw](06b-install-local.md) |