docs(audit): align documentation with post-remediation backend reality

- Update data model enums to match backend models
- Update API reference auth requirements
- Add dispute module references and warning blocks
- Add 2026-05-24 audit remediation callout to Overview
- Generate task breakdowns and audit artifacts
- Add doc alignment report (.taskmaster/reports/)

Taskmaster/Tasks/task-3-12.md

@@ -0,0 +1,35 @@
+---
+taskmaster_id: "3.12"
+status: "done"
+priority: "high"
+depends_on: ["3.6", "3.10", "3.11"]
+parent_id: "3"
+source: "taskmaster"
+generated_at: "2026-05-24T07:15:25.199Z"
+---
+
+# 3.12 - Add end-to-end integration, migration, and rollback test suites
+
+- [x] 3.12 - Add end-to-end integration, migration, and rollback test suites #taskmaster #priority/high #status/done ⏫ 🆔 tm-3-12 ⛔ tm-3-6 ⛔ tm-3-10 ⛔ tm-3-11
+
+## Metadata
+
+| Field | Value |
+| --- | --- |
+| Taskmaster ID | 3.12 |
+| Status | done |
+| Priority | high |
+| Dependencies | 3.6, 3.10, 3.11 |
+| Parent | 3 - Migrate payment architecture toward Request Network and internal funds management |
+
+## Description
+
+Cover backend contract tests, provider fixture tests, UI acceptance, rollout simulation, DRYRUN migration, and release rollback rehearsals.
+
+## Details
+
+_No details._
+
+## Verification
+
+_No verification strategy._