chore: update Docker configuration and CI/CD setup

- Removed Dockerfile and Dockerfile.test as part of the transition to a pre-built image.
- Updated .dockerignore and .gitignore to reflect new build context and ignored files.
- Modified docker-compose.yml to use the new image for the application.
- Enhanced documentation in AGENTS.md and README.md to include CI/CD details and release process.
- Added new dependencies for commit linting and semantic release in package.json and pnpm-lock.yaml.

This commit streamlines the Docker setup and improves the CI/CD workflow with Gitea Actions.

scripts/ci/export-cache-env.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env sh
+# Абсолютные пути для actions/cache: на act_runner «~» часто не раскрывается → cache miss.
+set -eu
+: "${GITHUB_ENV:?GITHUB_ENV required (Gitea/GitHub Actions)}"
+
+HOME_DIR="${HOME:-}"
+if [ -z "$HOME_DIR" ]; then
+  HOME_DIR="$(getent passwd "$(id -u)" 2>/dev/null | cut -d: -f6 || true)"
+fi
+HOME_DIR="${HOME_DIR:-/root}"
+
+PNPM_STORE_DIR="${HOME_DIR}/.pnpm-store"
+COREPACK_HOME="${HOME_DIR}/.cache/node/corepack"
+
+mkdir -p "$PNPM_STORE_DIR" "$COREPACK_HOME"
+
+{
+  echo "HOME_DIR=${HOME_DIR}"
+  echo "PNPM_STORE_DIR=${PNPM_STORE_DIR}"
+  echo "COREPACK_HOME=${COREPACK_HOME}"
+} >> "$GITHUB_ENV"
+
+echo "cache-env HOME_DIR=${HOME_DIR}"
+echo "cache-env PNPM_STORE_DIR=${PNPM_STORE_DIR}"
+echo "cache-env COREPACK_HOME=${COREPACK_HOME}"