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.

package.json

@@ -0,0 +1,11 @@
+{
+  "name": "mic-check",
+  "private": true,
+  "description": "Repo-root package - hosts the Husky pre-push hook only.",
+  "scripts": {
+    "prepare": "husky"
+  },
+  "devDependencies": {
+    "husky": "^9.1.7"
+  }
+}