v1.1.2 - dashboard WebSocket upgrade fix

Patch release for the dashboard Chat tab WebSocket failure reported in #22.

What changed:

• Preserve WebSocket upgrades through the add-on nginx /dashboard/api/ proxy used by the embedded Hermes dashboard Chat tab.
• Forward Upgrade and mapped Connection headers for /api/pty, /api/ws, and /api/events while keeping normal REST calls on the same path sane.
• Add regression coverage for primary and multi-profile dashboard API routes across Home Assistant Ingress, direct HTTP, and direct HTTPS render modes.
• Include the pending documentation/storage changelog notes in this release.

Verification:

• git diff --check - OK.
• python3 -m pytest -q tests/test_dashboard_ingress_patches.py - 18 passed.
• python3 -m pytest -q - 43 passed, 1 skipped.
• bash -n hermes_agent/nginx-render.sh hermes_agent/run.sh hermes_agent/profile-init.sh - OK.
• python3 -m py_compile hermes_agent/dashboard-patches.py tests/test_dashboard_ingress_patches.py tests/test_multi_profile.py - OK.
• Live Home Assistant local DEV add-on smoke - add-on started, nginx -t passed, dashboard returned HTTP 200 through HA Ingress, and /dashboard/api/pty, /dashboard/api/ws, and /dashboard/api/events all returned HTTP/1.1 101 Switching Protocols.

Thanks to @imcvampire for the report and browser Network evidence that exposed the broken Chat WebSocket path.