release: promote CivicZone v1.0.0 public use

[scottconverse]

Summary

• Promote CivicZone source truth to v1.0.0 with CivicCore v1.1.0 alignment.
• Replace the static resident page with browser-usable resident lookup/Q&A states and add a staff workflow shell.
• Harden staff APIs with CivicCore trusted-proxy staff-header validation.
• Add current browser QA evidence, careful-coding evidence, and release-gate audit evidence.

Verification

• python -m pytest -q: 71 passed, 3 warnings
• bash scripts/verify-docs.sh: PASS
• python -m ruff check .: PASS
• bash scripts/verify-release.sh: PASS, built wheel, sdist, SHA256SUMS
• git diff --check: clean, CRLF warnings only
• Browser QA: desktop/mobile resident and staff flows, loading/success/empty/error/partial states, console clean, keyboard/focus/layout evidence in docs/qa

Boundaries

• No legal advice or official zoning determination claim.
• No live vendor integration claim; integrations remain local/adversarial mocks.
• No macOS lifecycle certification claim.
• Full module completion still requires merge, tag/release, CI, and CivicSuite installer/module-selection truth follow-through.