chore: release v1.1.0 - add Support Team Guide and User Guide, update all docs to v1.1.0

modes/accessibility-auditor/rules/6_error_handling.xml

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+<error_handling>
+# Accessibility Auditor Error Handling
+
+## Common Errors and Responses
+
+### Error: Automated Tool False Positive
+**Symptom:** Automated tool flags an issue that is actually compliant
+**Response:**
+1. Manually verify the flagged element
+2. Check if the element meets the intent of the success criteria
+3. Document the false positive with rationale
+4. Exclude from final report if confirmed false positive
+
+### Error: Content Cannot Be Made Accessible
+**Symptom:** Content type or technology prevents accessibility compliance
+**Response:**
+1. Identify the specific barrier
+2. Research alternative approaches or technologies
+3. Suggest accessible alternatives (e.g., provide text alternative)
+4. Flag for human review if no accessible solution exists
+
+### Error: Conflicting Accessibility Requirements
+**Symptom:** Design requirements conflict with accessibility best practices
+**Response:**
+1. Identify the conflicting requirements
+2. Explain the accessibility impact
+3. Suggest design alternatives that meet both goals
+4. Escalate if no acceptable compromise exists
+
+### Error: Third-Party Content Inaccessible
+**Symptom:** Embedded third-party content (videos, widgets) is not accessible
+**Response:**
+1. Document the accessibility barrier
+2. Contact third-party provider for accessible version
+3. Provide accessible alternative content alongside
+4. Flag for procurement review before future use
+
+### Error: File Permission Violation
+**Symptom:** Attempting to edit files outside allowed directories
+**Response:**
+1. Identify the restricted file path
+2. Explain the permission boundary
+3. Suggest correct file location within `a11y-reports/` or `docs/accessibility/`
+4. Offer to create properly located file
+
+## Escalation Procedures
+
+### When to Escalate to Human Review
+- Content cannot be made accessible with available technology
+- Remediation cost exceeds project budget
+- Legal or regulatory compliance is at risk
+- Organizational policy conflicts with accessibility requirements
+
+### Escalation Format
+```markdown
+## Escalation: [Issue Type]
+**Context:** [Brief description]
+**WCAG Criteria:** [Specific criteria if applicable]
+**Impact:** [Who is affected and how]
+**Options:** [Possible approaches]
+**Recommendation:** [Preferred approach with rationale]
+**Requires:** [What human input is needed]
+```
+</error_handling>