chore: Enhance documentation for E2E testing:

- Added clarity and structure to README files, including recent updates and getting started sections.
- Improved manual verification documentation for CrowdSec authentication, emphasizing expected outputs and success criteria.
- Updated debugging guide with detailed output examples and automatic trace capture information.
- Refined best practices for E2E tests, focusing on efficient polling, locator strategies, and state management.
- Documented triage report for DNS Provider feature tests, highlighting issues fixed and test results before and after improvements.
- Revised E2E test writing guide to include when to use specific helper functions and patterns for better test reliability.
- Enhanced troubleshooting documentation with clear resolutions for common issues, including timeout and token configuration problems.
- Updated tests README to provide quick links and best practices for writing robust tests.

docs/security/archive/VULNERABILITY_ACCEPTANCE.md

@@ -21,6 +21,7 @@ This document provides formal acceptance and risk assessment for vulnerabilities
 **Decision**: Temporary acceptance pending Alpine Linux migration (already planned).
 
 **Rationale**:
+
 - CrowdSec LAPI authentication fix is CRITICAL for production users
 - CVEs are in Debian base packages, NOT application code
 - CVEs exist in `main` branch (blocking fix provides zero security improvement)
@@ -30,6 +31,7 @@ This document provides formal acceptance and risk assessment for vulnerabilities
 **Mitigation Plan**: Full Alpine migration (see `docs/plans/alpine_migration_spec.md`)
 
 **Expected Timeline**:
+
 - Week 1 (Feb 5-8): Verify Alpine CVE-2025-60876 is patched
 - Weeks 2-3 (Feb 11-22): Dockerfile migration + testing
 - Week 4 (Feb 26-28): Staging validation
@@ -40,6 +42,7 @@ This document provides formal acceptance and risk assessment for vulnerabilities
 **Detailed Security Advisory**: [`advisory_2026-02-04_debian_cves_temporary.md`](./advisory_2026-02-04_debian_cves_temporary.md)
 
 **Affected CVEs**:
+
 | CVE | CVSS | Package | Status |
 |-----|------|---------|--------|
 | CVE-2026-0861 | 8.4 | libc6 | No fix available → Alpine migration |
@@ -48,6 +51,7 @@ This document provides formal acceptance and risk assessment for vulnerabilities
 | CVE-2026-0915 | 7.5 | libc6 | No fix available → Alpine migration |
 
 **Approval Record**:
+
 - **Security Team**: APPROVED (temporary acceptance with mitigation) ✅
 - **QA Team**: APPROVED (conditions met) ✅
 - **DevOps Team**: APPROVED (Alpine migration feasible) ✅
@@ -77,6 +81,7 @@ PR #461 supply chain scan identified **9 vulnerabilities** in Alpine Linux 3.23.
 **Decision**: All vulnerabilities are **ACCEPTED** pending upstream Alpine Security Team patches. No application-level vulnerabilities were found.
 
 **Rationale**:
+
 - All CVEs are Alpine OS package issues, not Charon application code
 - No patches available from Alpine upstream as of 2026-01-13
 - Low exploitability in containerized deployment environment