Fix pump statuses in pre-auth workflow documentation

[jpwenzel]

Fix for #1

[Copilot]

Pull request overview

Updates the Part 3 walkthrough to correct the documented pump-status transitions for the Pre-Auth workflow (Issue #1), aligning the flow diagram and examples with the intended Pre-Auth “locked idle” behavior.

Changes:

• Corrects Pre-Auth flow overview pump status sequence (locked idle → free → in-use → locked → locked).
• Updates Pre-Auth command handling snippets (UNLOCKPUMP, LOCKPUMP, LOCKEDPUMP) to reflect corrected statuses.
• Adjusts Pre-Auth full examples to match the corrected status transitions (including post-CLEAR and cancellation paths).

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[Copilot]

This section says that after a successful UNLOCKPUMP the client should publish * PUMP 3 free, but Part 4’s “Pre-Auth Flow with TRANSACTIONINFO” example currently publishes * PUMP 1 locked immediately after UNLOCKPUMP (walkthrough/part-4.md:204-207). Please align the docs (either update Part 4’s example/status or add a clarifying note here about the correct status transition).

Suggested change

	> **Clarification:** Immediately after a successful `UNLOCKPUMP`, the pump should be published as `free` so the customer can begin fueling. If you see an example elsewhere in the walkthrough showing `locked` immediately after `UNLOCKPUMP`, treat that as outdated — `locked` is not the correct post-unlock status transition here.

[Copilot]

In the Pre-Auth full example, after CLEAR the pump status is updated to locked, but Step 6 describes CLEAR as freeing the pump and shows * PUMP 3 free on success (walkthrough/part-3.md:249-274). Please reconcile these two descriptions (e.g., document that Post-Pay returns to free while Pre-Auth returns to locked idle, and adjust the Step 6 guidance accordingly).

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

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