Add organization switching for administrators managing multiple organizations

[Copilot]

Allow administrators to switch between organizations in the dashboard

Test Fix - Regular User Access

Fixed: Test test_regular_user_cannot_access_dashboard now properly tests a user with no organizations

Problem: The test setup was creating org3 with regular_user as admin, giving them access to an organization. This caused the test to fail because the view returned 200 (showing the organization) instead of 302 (redirecting away).

Solution: Changed org3 to not have an admin user initially. The organization is only managed by manager_user, ensuring regular_user truly has no organizations to access.

Changes in website/tests/test_organization.py:

• Removed admin=self.regular_user from org3 creation
• Added comment clarifying that org3 has no admin initially
• Now regular_user has no organizations and the test correctly expects a redirect

This fix ensures:

• ✅ regular_user has no organizations (as intended by the test)
• ✅ manager_user can still manage org3 via managers relationship
• ✅ admin_user cannot access org3 (for other tests)
• ✅ All test scenarios work as expected

---

Previous Updates

JavaScript Block Fix:

• Moved JavaScript from non-existent extra_js block to content block
• Organization switcher now works correctly

Performance Optimization:

• Fixed N+1 query problem (reduced from 6+ queries to 1)
• Credit to @sidd190 for identifying this issue

Security Fix:

• Fixed CodeQL "DOM text reinterpreted as HTML" alert
• Added protocol validation, URL encoding, and safer navigation

All PR Review Comments Addressed:

• Performance optimization (organizations_count in context)
• Input validation (integer validation for switch_to)
• Accessibility (aria-hidden on SVG icons)
• Code quality (GitHub spelling, removed unused variable)
• Comprehensive edge case tests (17 total test cases)

Test Coverage

• Original tests: 13
• New edge case tests: 4
• Total: 17 comprehensive test cases

Original prompt

---

This section details on the original issue you should resolve

<issue_title>allow for administrators to switch to different organizations if they manage more than one in the dashboard</issue_title> <issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes OWASP-BLT/BLT#5256

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.