Add Gitea/GitHub CI pipeline, QA deploy, and Husky pre-push hook

Builds and tests are driven entirely by scripts/ci/*.sh so every step
(build, test, image build/push, QA deploy) can be run identically in
CI or on a workstation. QA runs as an isolated docker-compose stack
with its Postgres volume wiped and recreated on each deploy.

scripts/ci/test.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# Runs the fast test suites: .NET unit tests (EF InMemory, no DB/Docker needed)
+# and the admin Jest suite. Integration tests are intentionally excluded here -
+# they require a live API + Postgres (see readme in the Integration test project).
+set -euo pipefail
+cd "$(dirname "${BASH_SOURCE[0]}")" && source ./lib.sh
+cd "$CI_ROOT"
+
+log "Running MicCheck.Api.Tests.Unit"
+dotnet test tests/api/MicCheck.Api.Tests.Unit/MicCheck.Api.Tests.Unit.csproj -c Release --logger trx
+
+log "Running admin Jest tests"
+npm --prefix src/admin test
+
+log "test.sh complete"