feat(ci): enhance caching strategy and update workflows for pnpm and Go

- Updated CI workflows to export cache paths for pnpm and Go, improving cache efficiency and reducing package download times.
- Replaced corepack enable step with cache path exports in multiple workflows.
- Adjusted cache paths to utilize environment variables for better flexibility and clarity.
- Enhanced README documentation to reflect changes in caching mechanisms and runner configurations.

scripts/ci/export-cache-env.sh

@@ -0,0 +1,44 @@
+#!/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}"
+
+if command -v go >/dev/null 2>&1; then
+  GOMODCACHE="$(go env GOMODCACHE)"
+  GOCACHE="$(go env GOCACHE)"
+  GOPATH="$(go env GOPATH)"
+else
+  GOMODCACHE="${HOME_DIR}/go/pkg/mod"
+  GOCACHE="${HOME_DIR}/.cache/go-build"
+  GOPATH="${HOME_DIR}/go"
+fi
+
+PNPM_STORE_DIR="${HOME_DIR}/.pnpm-store"
+COREPACK_HOME="${HOME_DIR}/.cache/node/corepack"
+GOBIN="${GOPATH}/bin"
+GOLANGCI_LINT_CACHE="${HOME_DIR}/.cache/golangci-lint"
+
+mkdir -p "$PNPM_STORE_DIR" "$COREPACK_HOME" "$GOMODCACHE" "$GOCACHE" "$GOBIN" "$GOLANGCI_LINT_CACHE"
+
+{
+  echo "HOME_DIR=${HOME_DIR}"
+  echo "PNPM_STORE_DIR=${PNPM_STORE_DIR}"
+  echo "COREPACK_HOME=${COREPACK_HOME}"
+  echo "GOMODCACHE=${GOMODCACHE}"
+  echo "GOCACHE=${GOCACHE}"
+  echo "GOPATH=${GOPATH}"
+  echo "GOBIN=${GOBIN}"
+  echo "GOLANGCI_LINT_CACHE=${GOLANGCI_LINT_CACHE}"
+} >> "$GITHUB_ENV"
+
+echo "cache-env HOME_DIR=${HOME_DIR}"
+echo "cache-env PNPM_STORE_DIR=${PNPM_STORE_DIR}"
+echo "cache-env GOMODCACHE=${GOMODCACHE}"
+echo "cache-env GOCACHE=${GOCACHE}"
+echo "cache-env GOBIN=${GOBIN}"

scripts/ci/golangci-lint.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env sh
+# Бинарь golangci-lint в GOBIN (кэш actions/cache), без goinstall и без hashFiles.
+set -eu
+VER="${GOLANGCI_LINT_VERSION:-v1.64.8}"
+: "${GOBIN:?GOBIN required — run scripts/ci/export-cache-env.sh after setup-go}"
+
+mkdir -p "$GOBIN"
+export PATH="${GOBIN}:${PATH}"
+if [ -n "${GOLANGCI_LINT_CACHE:-}" ]; then
+  mkdir -p "$GOLANGCI_LINT_CACHE"
+  export GOLANGCI_LINT_CACHE
+fi
+
+if [ ! -x "${GOBIN}/golangci-lint" ]; then
+  echo "install golangci-lint ${VER} -> ${GOBIN}"
+  curl -sSfL "https://raw.githubusercontent.com/golangci/golangci-lint/${VER}/install.sh" \
+    | sh -s -- -b "$GOBIN" "$VER"
+fi
+golangci-lint version
+golangci-lint run

scripts/ci/pnpm-ci.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env sh
+# pnpm install из кэша Gitea (store + node_modules). Без повторного download при hit.
+set -eu
+: "${PNPM_STORE_DIR:?PNPM_STORE_DIR required — run scripts/ci/export-cache-env.sh first}"
+
+export COREPACK_HOME="${COREPACK_HOME:-${HOME:-/root}/.cache/node/corepack}"
+mkdir -p "$PNPM_STORE_DIR" "$COREPACK_HOME"
+corepack enable
+pnpm config set store-dir "$PNPM_STORE_DIR"
+
+echo "pnpm store: $(pnpm store path)"
+echo "PNPM_CACHE_HIT=${PNPM_CACHE_HIT:-}"
+
+if [ "${PNPM_CACHE_HIT:-}" = "true" ]; then
+  if pnpm install --frozen-lockfile --offline; then
+    echo "pnpm install --offline (cache hit)"
+    exit 0
+  fi
+  echo "offline install failed — prefer-offline"
+fi
+pnpm install --frozen-lockfile --prefer-offline